Vulnerability-Lookup

CVE-2023-53365 (GCVE-0-2023-53365)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:43

Title

ip6mr: Fix skb_under_panic in ip6mr_cache_report()

Summary

In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skb_under_panic in ip6mr_cache_report() skbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:192! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:skb_panic+0x152/0x1d0 Call Trace: <TASK> skb_push+0xc4/0xe0 ip6mr_cache_report+0xd69/0x19b0 reg_vif_xmit+0x406/0x690 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 vlan_dev_hard_start_xmit+0x3ab/0x5c0 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 neigh_connected_output+0x3ed/0x570 ip6_finish_output2+0x5b5/0x1950 ip6_finish_output+0x693/0x11c0 ip6_output+0x24b/0x880 NF_HOOK.constprop.0+0xfd/0x530 ndisc_send_skb+0x9db/0x1400 ndisc_send_rs+0x12a/0x6c0 addrconf_dad_completed+0x3c9/0xea0 addrconf_dad_work+0x849/0x1420 process_one_work+0xa22/0x16e0 worker_thread+0x679/0x10c0 ret_from_fork+0x28/0x60 ret_from_fork_asm+0x11/0x20 When setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit(). reg_vif_xmit() ip6mr_cache_report() skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4 And skb_push declared as: void *skb_push(struct sk_buff *skb, unsigned int len); skb->data -= len; //0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850 skb->data is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 18:45 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a96d74d1076c82a4c…
https://git.kernel.org/stable/c/8382e7ed2d63e6c2d…
https://git.kernel.org/stable/c/0438e60a00d4e335b…
https://git.kernel.org/stable/c/1683124129a4263dd…
https://git.kernel.org/stable/c/1bb54a21f4d9b8844…
https://git.kernel.org/stable/c/691a09eecad97e745…
https://git.kernel.org/stable/c/3326c711f18d18fe6…
https://git.kernel.org/stable/c/30e0191b16e8a58e4…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < a96d74d1076c82a4cef02c150d9996b21354c78d (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 8382e7ed2d63e6c2daf6881fa091526dc6c879cd (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 0438e60a00d4e335b3c36397dbf26c74b5d13ef0 (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 1683124129a4263dd5bce2475bab110e95fa0346 (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 1bb54a21f4d9b88442f8c3307c780e2db64417e4 (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 691a09eecad97e745b9aa0e3918db46d020bdacb (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 3326c711f18d18fe6e1f5d83d3a7eab07e5a1560 (git) Affected: 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d , < 30e0191b16e8a58e4620fa3e2839ddc7b9d4281c (git)	guessed
Linux	Linux	Affected: 2.6.26 Unaffected: 0 , < 2.6.26 (semver) Unaffected: 4.14.322 , ≤ 4.14.* (semver) Unaffected: 4.19.291 , ≤ 4.19.* (semver) Unaffected: 5.4.253 , ≤ 5.4.* (semver) Unaffected: 5.10.190 , ≤ 5.10.* (semver) Unaffected: 5.15.126 , ≤ 5.15.* (semver) Unaffected: 6.1.45 , ≤ 6.1.* (semver) Unaffected: 6.4.10 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)	guessed

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{
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              "baseScore": 5.5,
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "versions": [
            {
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              "version": "2.6.26"
            },
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "4.14.322",
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            {
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              "status": "unaffected",
              "version": "4.19.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.126",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.322",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.291",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
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                },
                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\n\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\n ------------[ cut here ]------------\n kernel BUG at net/core/skbuff.c:192!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: ipv6_addrconf addrconf_dad_work\n RIP: 0010:skb_panic+0x152/0x1d0\n Call Trace:\n  \u003cTASK\u003e\n  skb_push+0xc4/0xe0\n  ip6mr_cache_report+0xd69/0x19b0\n  reg_vif_xmit+0x406/0x690\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  vlan_dev_hard_start_xmit+0x3ab/0x5c0\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  neigh_connected_output+0x3ed/0x570\n  ip6_finish_output2+0x5b5/0x1950\n  ip6_finish_output+0x693/0x11c0\n  ip6_output+0x24b/0x880\n  NF_HOOK.constprop.0+0xfd/0x530\n  ndisc_send_skb+0x9db/0x1400\n  ndisc_send_rs+0x12a/0x6c0\n  addrconf_dad_completed+0x3c9/0xea0\n  addrconf_dad_work+0x849/0x1420\n  process_one_work+0xa22/0x16e0\n  worker_thread+0x679/0x10c0\n  ret_from_fork+0x28/0x60\n  ret_from_fork_asm+0x11/0x20\n\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\nreg_vif_xmit()\n    ip6mr_cache_report()\n        skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\nAnd skb_push declared as:\n\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\n\t\tskb-\u003edata -= len;\n\t\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:43:32.333Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d"
        },
        {
          "url": "https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0"
        },
        {
          "url": "https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb"
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        },
        {
          "url": "https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c"
        }
      ],
      "title": "ip6mr: Fix skb_under_panic in ip6mr_cache_report()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53365",
    "datePublished": "2025-09-17T14:56:53.781Z",
    "dateReserved": "2025-09-17T14:54:09.733Z",
    "dateUpdated": "2026-05-11T19:43:32.333Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53365",
      "date": "2026-09-16",
      "epss": "0.0019",
      "percentile": "0.08844"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53365\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-17T15:15:40.803\",\"lastModified\":\"2026-06-17T06:45:01.113\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\\n\\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\\n ------------[ cut here ]------------\\n kernel BUG at net/core/skbuff.c:192!\\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\\n Workqueue: ipv6_addrconf addrconf_dad_work\\n RIP: 0010:skb_panic+0x152/0x1d0\\n Call Trace:\\n  \u003cTASK\u003e\\n  skb_push+0xc4/0xe0\\n  ip6mr_cache_report+0xd69/0x19b0\\n  reg_vif_xmit+0x406/0x690\\n  dev_hard_start_xmit+0x17e/0x6e0\\n  __dev_queue_xmit+0x2d6a/0x3d20\\n  vlan_dev_hard_start_xmit+0x3ab/0x5c0\\n  dev_hard_start_xmit+0x17e/0x6e0\\n  __dev_queue_xmit+0x2d6a/0x3d20\\n  neigh_connected_output+0x3ed/0x570\\n  ip6_finish_output2+0x5b5/0x1950\\n  ip6_finish_output+0x693/0x11c0\\n  ip6_output+0x24b/0x880\\n  NF_HOOK.constprop.0+0xfd/0x530\\n  ndisc_send_skb+0x9db/0x1400\\n  ndisc_send_rs+0x12a/0x6c0\\n  addrconf_dad_completed+0x3c9/0xea0\\n  addrconf_dad_work+0x849/0x1420\\n  process_one_work+0xa22/0x16e0\\n  worker_thread+0x679/0x10c0\\n  ret_from_fork+0x28/0x60\\n  ret_from_fork_asm+0x11/0x20\\n\\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\\nreg_vif_xmit()\\n    ip6mr_cache_report()\\n        skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\\nAnd skb_push declared as:\\n\\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\\n\\t\\tskb-\u003edata -= len;\\n\\t\\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv6/ip6mr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"a96d74d1076c82a4cef02c150d9996b21354c78d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"8382e7ed2d63e6c2daf6881fa091526dc6c879cd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"0438e60a00d4e335b3c36397dbf26c74b5d13ef0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"1683124129a4263dd5bce2475bab110e95fa0346\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"1bb54a21f4d9b88442f8c3307c780e2db64417e4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"691a09eecad97e745b9aa0e3918db46d020bdacb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"3326c711f18d18fe6e1f5d83d3a7eab07e5a1560\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\",\"lessThan\":\"30e0191b16e8a58e4620fa3e2839ddc7b9d4281c\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv6/ip6mr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.26\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.26\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.322\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.291\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.253\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.190\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.126\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.45\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.4.10\",\"lessThanOrEqual\":\"6.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-14T18:45:20.470480Z\",\"id\":\"CVE-2023-53365\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.26\",\"versionEndExcluding\":\"4.14.322\",\"matchCriteriaId\":\"3AE49B83-4BFC-45E2-B988-C67C1F2A3B47\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.291\",\"matchCriteriaId\":\"D2D2CA9F-4CC4-4AF5-8C6D-E58415AB782E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.253\",\"matchCriteriaId\":\"0707E9FF-8CDE-4AC1-98F3-5BB74EF88F8A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.190\",\"matchCriteriaId\":\"B8DECE4F-2D62-4976-B338-963015198AC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.126\",\"matchCriteriaId\":\"C552AC9E-23B8-4D7D-AA26-57985BD93962\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.45\",\"matchCriteriaId\":\"A0CA013D-55AF-4494-A931-AFC8EA64E875\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.4.10\",\"matchCriteriaId\":\"7BB0D94C-4FCE-46F4-A8D4-062D6A84627A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B3E6E4D-E24E-4630-B00C-8C9901C597B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F5608371-157A-4318-8A2E-4104C3467EA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"2226A776-DF8C-49E0-A030-0A7853BB018A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:19:31+00:00",
      "cve": "CVE-2023-53365",
      "id": "CVE-2023-53365",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "1162",
      "product_status:known_affected": "52",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53365.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:47:28Z",
      "cve": "CVE-2023-53365",
      "id": "CVE-2023-53365",
      "initial_release_date": "2025-09-17T23:27:35Z",
      "product_status:known_affected": "503",
      "product_status:known_not_affected": "20",
      "product_status:recommended": "695",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53365",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53365.json",
      "version": "73"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53365\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:45:20.470480Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:45:16.486Z\"}}], \"cna\": {\"title\": \"ip6mr: Fix skb_under_panic in ip6mr_cache_report()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"a96d74d1076c82a4cef02c150d9996b21354c78d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"8382e7ed2d63e6c2daf6881fa091526dc6c879cd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"0438e60a00d4e335b3c36397dbf26c74b5d13ef0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"1683124129a4263dd5bce2475bab110e95fa0346\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"1bb54a21f4d9b88442f8c3307c780e2db64417e4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"691a09eecad97e745b9aa0e3918db46d020bdacb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"3326c711f18d18fe6e1f5d83d3a7eab07e5a1560\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14fb64e1f449ef6666f1c3a3fa4e13aec669b98d\", \"lessThan\": \"30e0191b16e8a58e4620fa3e2839ddc7b9d4281c\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv6/ip6mr.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.26\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.26\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.322\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.291\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.253\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.190\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.126\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.45\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.4.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.4.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/ip6mr.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d\"}, {\"url\": \"https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd\"}, {\"url\": \"https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0\"}, {\"url\": \"https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346\"}, {\"url\": \"https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4\"}, {\"url\": \"https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb\"}, {\"url\": \"https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560\"}, {\"url\": \"https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\\n\\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\\n ------------[ cut here ]------------\\n kernel BUG at net/core/skbuff.c:192!\\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\\n Workqueue: ipv6_addrconf addrconf_dad_work\\n RIP: 0010:skb_panic+0x152/0x1d0\\n Call Trace:\\n  \u003cTASK\u003e\\n  skb_push+0xc4/0xe0\\n  ip6mr_cache_report+0xd69/0x19b0\\n  reg_vif_xmit+0x406/0x690\\n  dev_hard_start_xmit+0x17e/0x6e0\\n  __dev_queue_xmit+0x2d6a/0x3d20\\n  vlan_dev_hard_start_xmit+0x3ab/0x5c0\\n  dev_hard_start_xmit+0x17e/0x6e0\\n  __dev_queue_xmit+0x2d6a/0x3d20\\n  neigh_connected_output+0x3ed/0x570\\n  ip6_finish_output2+0x5b5/0x1950\\n  ip6_finish_output+0x693/0x11c0\\n  ip6_output+0x24b/0x880\\n  NF_HOOK.constprop.0+0xfd/0x530\\n  ndisc_send_skb+0x9db/0x1400\\n  ndisc_send_rs+0x12a/0x6c0\\n  addrconf_dad_completed+0x3c9/0xea0\\n  addrconf_dad_work+0x849/0x1420\\n  process_one_work+0xa22/0x16e0\\n  worker_thread+0x679/0x10c0\\n  ret_from_fork+0x28/0x60\\n  ret_from_fork_asm+0x11/0x20\\n\\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\\nreg_vif_xmit()\\n    ip6mr_cache_report()\\n        skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\\nAnd skb_push declared as:\\n\\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\\n\\t\\tskb-\u003edata -= len;\\n\\t\\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.322\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.291\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.253\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.190\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.126\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.45\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.4.10\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5\", \"versionStartIncluding\": \"2.6.26\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:43:32.333Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53365\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:43:32.333Z\", \"dateReserved\": \"2025-09-17T14:54:09.733Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-17T14:56:53.781Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2023-53365

Vulnerability from fkie_nvd - Published: 2025-09-17 15:15 - Updated: 2026-06-17 06:45

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/ip6mr.c"
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          "vendor": "Linux",
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              "versionType": "git"
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            },
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            },
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/ip6mr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "lessThan": "2.6.26",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.322",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.126",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "vulnerable": true
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            {
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            {
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              "versionEndExcluding": "6.4.10",
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              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0",
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              "matchCriteriaId": "F5608371-157A-4318-8A2E-4104C3467EA1",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2226A776-DF8C-49E0-A030-0A7853BB018A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\n\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\n ------------[ cut here ]------------\n kernel BUG at net/core/skbuff.c:192!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: ipv6_addrconf addrconf_dad_work\n RIP: 0010:skb_panic+0x152/0x1d0\n Call Trace:\n  \u003cTASK\u003e\n  skb_push+0xc4/0xe0\n  ip6mr_cache_report+0xd69/0x19b0\n  reg_vif_xmit+0x406/0x690\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  vlan_dev_hard_start_xmit+0x3ab/0x5c0\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  neigh_connected_output+0x3ed/0x570\n  ip6_finish_output2+0x5b5/0x1950\n  ip6_finish_output+0x693/0x11c0\n  ip6_output+0x24b/0x880\n  NF_HOOK.constprop.0+0xfd/0x530\n  ndisc_send_skb+0x9db/0x1400\n  ndisc_send_rs+0x12a/0x6c0\n  addrconf_dad_completed+0x3c9/0xea0\n  addrconf_dad_work+0x849/0x1420\n  process_one_work+0xa22/0x16e0\n  worker_thread+0x679/0x10c0\n  ret_from_fork+0x28/0x60\n  ret_from_fork_asm+0x11/0x20\n\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\nreg_vif_xmit()\n    ip6mr_cache_report()\n        skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\nAnd skb_push declared as:\n\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\n\t\tskb-\u003edata -= len;\n\t\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails."
    }
  ],
  "id": "CVE-2023-53365",
  "lastModified": "2026-06-17T06:45:01.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-53365",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-14T18:45:20.470480Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-17T15:15:40.803",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
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      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-29X7-QR43-QQMW

Vulnerability from github – Published: 2025-09-17 15:30 – Updated: 2025-12-12 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ip6mr: Fix skb_under_panic in ip6mr_cache_report()

skbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:192! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:skb_panic+0x152/0x1d0 Call Trace: skb_push+0xc4/0xe0 ip6mr_cache_report+0xd69/0x19b0 reg_vif_xmit+0x406/0x690 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 vlan_dev_hard_start_xmit+0x3ab/0x5c0 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 neigh_connected_output+0x3ed/0x570 ip6_finish_output2+0x5b5/0x1950 ip6_finish_output+0x693/0x11c0 ip6_output+0x24b/0x880 NF_HOOK.constprop.0+0xfd/0x530 ndisc_send_skb+0x9db/0x1400 ndisc_send_rs+0x12a/0x6c0 addrconf_dad_completed+0x3c9/0xea0 addrconf_dad_work+0x849/0x1420 process_one_work+0xa22/0x16e0 worker_thread+0x679/0x10c0 ret_from_fork+0x28/0x60 ret_from_fork_asm+0x11/0x20

When setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit(). reg_vif_xmit() ip6mr_cache_report() skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4 And skb_push declared as: void skb_push(struct sk_buff skb, unsigned int len); skb->data -= len; //0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850 skb->data is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-53365"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-17T15:15:40Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\n\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\n ------------[ cut here ]------------\n kernel BUG at net/core/skbuff.c:192!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: ipv6_addrconf addrconf_dad_work\n RIP: 0010:skb_panic+0x152/0x1d0\n Call Trace:\n  \u003cTASK\u003e\n  skb_push+0xc4/0xe0\n  ip6mr_cache_report+0xd69/0x19b0\n  reg_vif_xmit+0x406/0x690\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  vlan_dev_hard_start_xmit+0x3ab/0x5c0\n  dev_hard_start_xmit+0x17e/0x6e0\n  __dev_queue_xmit+0x2d6a/0x3d20\n  neigh_connected_output+0x3ed/0x570\n  ip6_finish_output2+0x5b5/0x1950\n  ip6_finish_output+0x693/0x11c0\n  ip6_output+0x24b/0x880\n  NF_HOOK.constprop.0+0xfd/0x530\n  ndisc_send_skb+0x9db/0x1400\n  ndisc_send_rs+0x12a/0x6c0\n  addrconf_dad_completed+0x3c9/0xea0\n  addrconf_dad_work+0x849/0x1420\n  process_one_work+0xa22/0x16e0\n  worker_thread+0x679/0x10c0\n  ret_from_fork+0x28/0x60\n  ret_from_fork_asm+0x11/0x20\n\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\nreg_vif_xmit()\n    ip6mr_cache_report()\n        skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\nAnd skb_push declared as:\n\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\n\t\tskb-\u003edata -= len;\n\t\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.",
  "id": "GHSA-29x7-qr43-qqmw",
  "modified": "2025-12-12T18:30:28Z",
  "published": "2025-09-17T15:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53365"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2024:2394

Vulnerability from csaf_redhat - Published: 2024-04-30 09:57 - Updated: 2026-09-11 09:26

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

341 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

A buffer underwrite vulnerability exists in the linux kernel in the function skb_under_panic in ip6mr_cache_report(), leading to an attacker, via crafting a payload, could result in damage to system availability and integrity.

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 279 products

https://access.redhat.com/errata/RHSA-2024:2394

Open the full advisory

RHSA-2024:3138

Vulnerability from csaf_redhat - Published: 2024-05-22 10:03 - Updated: 2026-09-11 09:26

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Moderate

Scope

163 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 120 products

https://access.redhat.com/errata/RHSA-2024:3138

Open the full advisory

RHSA-2025:22006

Vulnerability from csaf_redhat - Published: 2025-11-25 00:47 - Updated: 2026-08-19 21:05

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

18 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 146 products

https://access.redhat.com/errata/RHSA-2025:22006

Open the full advisory

RHSA-2025:22066

Vulnerability from csaf_redhat - Published: 2025-11-25 10:41 - Updated: 2026-08-19 21:05

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

9 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 134 products

https://access.redhat.com/errata/RHSA-2025:22066

Open the full advisory

RHSA-2025:22072

Vulnerability from csaf_redhat - Published: 2025-11-25 12:37 - Updated: 2026-08-19 21:05

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

13 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 72 products

https://access.redhat.com/errata/RHSA-2025:22072

Open the full advisory

RHSA-2025:22087

Vulnerability from csaf_redhat - Published: 2025-11-25 16:42 - Updated: 2026-08-19 21:05

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Moderate

Scope

9 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 30 products

https://access.redhat.com/errata/RHSA-2025:22087

Open the full advisory

RHSA-2025:22095

Vulnerability from csaf_redhat - Published: 2025-11-25 17:26 - Updated: 2026-08-05 11:47

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

14 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 167 products

https://access.redhat.com/errata/RHSA-2025:22095

Open the full advisory

RHSA-2025:22124

Vulnerability from csaf_redhat - Published: 2025-11-25 18:17 - Updated: 2026-08-05 11:47

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Moderate

Scope

14 vulnerabilities in this advisory, including CVE-2023-53365.

CVE-2023-53365

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 34 products

https://access.redhat.com/errata/RHSA-2025:22124

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CVE-2023-53365 (GCVE-0-2023-53365)

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Related by attack behaviour