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CVE-2022-49691 (GCVE-0-2022-49691)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2026-05-11 19:04
VLAI
Title
erspan: do not assume transport header is always set
Summary
In the Linux kernel, the following vulnerability has been resolved: erspan: do not assume transport header is always set Rewrite tests in ip6erspan_tunnel_xmit() and erspan_fb_xmit() to not assume transport header is set. syzbot reported: WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline] WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963 Modules linked in: CPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline] RIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963 Code: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 <0f> 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00 RSP: 0018:ffffc90005daf910 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000 RDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003 RBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40 R13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000 FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0 Call Trace: <TASK> __netdev_start_xmit include/linux/netdevice.h:4805 [inline] netdev_start_xmit include/linux/netdevice.h:4819 [inline] xmit_one net/core/dev.c:3588 [inline] dev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604 sch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3815 [inline] __dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219 dev_queue_xmit include/linux/netdevice.h:2994 [inline] tx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63 kthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 </TASK>
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < fb401f37f6eadf24956d93687e5758c163c0d12b (git)
Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < 02da602bc2f353dccd9e489a604490034ded941e (git)
Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < cec9867ee55478ef5dcb2adf030fe0c442a4c4ee (git)
Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < a3b2470399f679587c45abe56e551caf10becca2 (git)
Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < 2c8aeffc7c586d53e1d380f010bdca4f710f2480 (git)
Affected: d5db21a3e6977dcb42cee3d16cd69901fa66510a , < 301bd140ed0b24f0da660874c7e8a47dad8c8222 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 4.19.250 , ≤ 4.19.* (semver)
Unaffected: 5.4.202 , ≤ 5.4.* (semver)
Unaffected: 5.10.127 , ≤ 5.10.* (semver)
Unaffected: 5.15.51 , ≤ 5.15.* (semver)
Unaffected: 5.18.8 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "net/ipv4/ip_gre.c",
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              "version": "4.19.250",
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              "status": "unaffected",
              "version": "5.4.202",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.10.127",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.15.51",
              "versionType": "semver"
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              "status": "unaffected",
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            {
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            }
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      "cpeApplicability": [
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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\nerspan: do not assume transport header is always set\n\nRewrite tests in ip6erspan_tunnel_xmit() and\nerspan_fb_xmit() to not assume transport header is set.\n\nsyzbot reported:\n\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline]\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\nModules linked in:\nCPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014\nRIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline]\nRIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\nCode: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 \u003c0f\u003e 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00\nRSP: 0018:ffffc90005daf910 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000\nRDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003\nRBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff\nR10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40\nR13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000\nFS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0\nCall Trace:\n\u003cTASK\u003e\n__netdev_start_xmit include/linux/netdevice.h:4805 [inline]\nnetdev_start_xmit include/linux/netdevice.h:4819 [inline]\nxmit_one net/core/dev.c:3588 [inline]\ndev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604\nsch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342\n__dev_xmit_skb net/core/dev.c:3815 [inline]\n__dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219\ndev_queue_xmit include/linux/netdevice.h:2994 [inline]\ntx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63\nkthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229\nkthread+0x2e9/0x3a0 kernel/kthread.c:376\nret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302\n\u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:04:47.587Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb401f37f6eadf24956d93687e5758c163c0d12b"
        },
        {
          "url": "https://git.kernel.org/stable/c/02da602bc2f353dccd9e489a604490034ded941e"
        },
        {
          "url": "https://git.kernel.org/stable/c/cec9867ee55478ef5dcb2adf030fe0c442a4c4ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3b2470399f679587c45abe56e551caf10becca2"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c8aeffc7c586d53e1d380f010bdca4f710f2480"
        },
        {
          "url": "https://git.kernel.org/stable/c/301bd140ed0b24f0da660874c7e8a47dad8c8222"
        }
      ],
      "title": "erspan: do not assume transport header is always set",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49691",
    "datePublished": "2025-02-26T02:24:15.146Z",
    "dateReserved": "2025-02-26T02:21:30.442Z",
    "dateUpdated": "2026-05-11T19:04:47.587Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49691",
      "date": "2026-09-17",
      "epss": "0.00282",
      "percentile": "0.20806"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49691\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:43.893\",\"lastModified\":\"2026-06-17T05:18:52.343\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nerspan: do not assume transport header is always set\\n\\nRewrite tests in ip6erspan_tunnel_xmit() and\\nerspan_fb_xmit() to not assume transport header is set.\\n\\nsyzbot reported:\\n\\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline]\\nWARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\\nModules linked in:\\nCPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0\\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014\\nRIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline]\\nRIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963\\nCode: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 \u003c0f\u003e 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00\\nRSP: 0018:ffffc90005daf910 EFLAGS: 00010293\\nRAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000\\nRDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003\\nRBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff\\nR10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40\\nR13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000\\nFS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0\\nCall Trace:\\n\u003cTASK\u003e\\n__netdev_start_xmit include/linux/netdevice.h:4805 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4819 [inline]\\nxmit_one net/core/dev.c:3588 [inline]\\ndev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604\\nsch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342\\n__dev_xmit_skb net/core/dev.c:3815 [inline]\\n__dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219\\ndev_queue_xmit include/linux/netdevice.h:2994 [inline]\\ntx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63\\nkthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229\\nkthread+0x2e9/0x3a0 kernel/kthread.c:376\\nret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302\\n\u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erspan: no asuma que el encabezado de transporte siempre est\u00e1 configurado Reescriba las pruebas en ip6erspan_tunnel_xmit() y erspan_fb_xmit() para no asumir que el encabezado de transporte est\u00e1 configurado. syzbot inform\u00f3:  WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 skb_transport_header include/linux/skbuff.h:2911 [inline] WARNING: CPU: 0 PID: 1350 at include/linux/skbuff.h:2911 ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963 Modules linked in: CPU: 0 PID: 1350 Comm: aoe_tx0 Not tainted 5.19.0-rc2-syzkaller-00160-g274295c6e53f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:skb_transport_header include/linux/skbuff.h:2911 [inline] RIP: 0010:ip6erspan_tunnel_xmit+0x15af/0x2eb0 net/ipv6/ip6_gre.c:963 Code: 0f 47 f0 40 88 b5 7f fe ff ff e8 8c 16 4b f9 89 de bf ff ff ff ff e8 a0 12 4b f9 66 83 fb ff 0f 85 1d f1 ff ff e8 71 16 4b f9 \u0026lt;0f\u0026gt; 0b e9 43 f0 ff ff e8 65 16 4b f9 48 8d 85 30 ff ff ff ba 60 00 RSP: 0018:ffffc90005daf910 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000 RDX: ffff88801f032100 RSI: ffffffff882e8d3f RDI: 0000000000000003 RBP: ffffc90005dafab8 R08: 0000000000000003 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000000 R12: ffff888024f21d40 R13: 000000000000a288 R14: 00000000000000b0 R15: ffff888025a2e000 FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e425000 CR3: 000000006d099000 CR4: 0000000000152ef0 Call Trace:  __netdev_start_xmit include/linux/netdevice.h:4805 [inline] netdev_start_xmit include/linux/netdevice.h:4819 [inline] xmit_one net/core/dev.c:3588 [inline] dev_hard_start_xmit+0x188/0x880 net/core/dev.c:3604 sch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3815 [inline] __dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4219 dev_queue_xmit include/linux/netdevice.h:2994 [inline] tx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63 kthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302  \"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv4/ip_gre.c\",\"net/ipv6/ip6_gre.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"fb401f37f6eadf24956d93687e5758c163c0d12b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"02da602bc2f353dccd9e489a604490034ded941e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"cec9867ee55478ef5dcb2adf030fe0c442a4c4ee\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"a3b2470399f679587c45abe56e551caf10becca2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"2c8aeffc7c586d53e1d380f010bdca4f710f2480\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d5db21a3e6977dcb42cee3d16cd69901fa66510a\",\"lessThan\":\"301bd140ed0b24f0da660874c7e8a47dad8c8222\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv4/ip_gre.c\",\"net/ipv6/ip6_gre.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.18\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.18\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.250\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.202\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.127\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.51\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.18.8\",\"lessThanOrEqual\":\"5.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19\",\"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}]},\"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\":\"4.18\",\"versionEndExcluding\":\"4.19.250\",\"matchCriteriaId\":\"4419E755-0A9E-42E7-985C-4B7CA8C1B9AC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.202\",\"matchCriteriaId\":\"F90471AA-9F14-4DC3-9688-99E9F537D3F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.127\",\"matchCriteriaId\":\"758A1E17-EBCF-401B-83C7-B682D38D61BE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.51\",\"matchCriteriaId\":\"B43F7696-8D52-482D-9080-84279B0CB38C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.18.8\",\"matchCriteriaId\":\"0172D3FA-DDEB-482A-A270-4A1495A8798C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8C30C2D-F82D-4D37-AB48-D76ABFBD5377\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF8547FC-C849-4F1B-804B-A93AE2F04A92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F3068028-F453-4A1C-B80F-3F5609ACEF60\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/02da602bc2f353dccd9e489a604490034ded941e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2c8aeffc7c586d53e1d380f010bdca4f710f2480\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/301bd140ed0b24f0da660874c7e8a47dad8c8222\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a3b2470399f679587c45abe56e551caf10becca2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cec9867ee55478ef5dcb2adf030fe0c442a4c4ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb401f37f6eadf24956d93687e5758c163c0d12b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:15:28+00:00",
      "cve": "CVE-2022-49691",
      "id": "CVE-2022-49691",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "286",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: erspan: do not assume transport header is always set",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49691.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:26:13Z",
      "cve": "CVE-2022-49691",
      "id": "CVE-2022-49691",
      "initial_release_date": "2025-02-27T03:02:46Z",
      "product_status:known_affected": "130",
      "product_status:known_not_affected": "339",
      "product_status:recommended": "42",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49691",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49691.json",
      "version": "16"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.