Vulnerability-Lookup

GHSA-P2V4-3P7M-942V

Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-09-22 21:30

Details

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

mm/page_owner: use strscpy() instead of strlcpy()

current->comm[] is not a string (no guarantee for a zero byte in it).

strlcpy(s1, s2, l) is calling strlen(s2), potentially causing out-of-bound access, as reported by syzbot:

detected buffer overflow in __fortify_strlen ------------[ cut here ]------------ kernel BUG at lib/string_helpers.c:980! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4087 Comm: dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fortify_panic+0x18/0x1a lib/string_helpers.c:980 Code: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49 40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff <0f> 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7 00 00 27 8a RSP: 0018:ffffc900000074a8 EFLAGS: 00010286

RAX: 000000000000002c RBX: ffff88801226b728 RCX: 0000000000000000 RDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87 RBP: ffffffff89da2aa0 R08: 000000000000002c R09: 0000000000000000 R10: ffffffff815fae2e R11: 0000000000000000 R12: ffff88801226b700 R13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __fortify_strlen include/linux/fortify-string.h:128 [inline] strlcpy include/linux/fortify-string.h:143 [inline] __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171 __set_page_owner+0x3e/0x50 mm/page_owner.c:190 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] slaballoc+0x8df/0xf20 mm/slub.c:3005 slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242 dst_alloc+0x146/0x1f0 net/core/dst.c:92

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49401"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:16Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_owner: use strscpy() instead of strlcpy()\n\ncurrent-\u003ecomm[] is not a string (no guarantee for a zero byte in it).\n\nstrlcpy(s1, s2, l) is calling strlen(s2), potentially\ncausing out-of-bound access, as reported by syzbot:\n\ndetected buffer overflow in __fortify_strlen\n------------[ cut here ]------------\nkernel BUG at lib/string_helpers.c:980!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN\nCPU: 0 PID: 4087 Comm: dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:fortify_panic+0x18/0x1a lib/string_helpers.c:980\nCode: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49 40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff \u003c0f\u003e 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7 00 00 27 8a\nRSP: 0018:ffffc900000074a8 EFLAGS: 00010286\n\nRAX: 000000000000002c RBX: ffff88801226b728 RCX: 0000000000000000\nRDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87\nRBP: ffffffff89da2aa0 R08: 000000000000002c R09: 0000000000000000\nR10: ffffffff815fae2e R11: 0000000000000000 R12: ffff88801226b700\nR13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600\nCall Trace:\n \u003cIRQ\u003e\n __fortify_strlen include/linux/fortify-string.h:128 [inline]\n strlcpy include/linux/fortify-string.h:143 [inline]\n __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171\n __set_page_owner+0x3e/0x50 mm/page_owner.c:190\n prep_new_page mm/page_alloc.c:2441 [inline]\n get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182\n __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408\n alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272\n alloc_slab_page mm/slub.c:1799 [inline]\n allocate_slab+0x26c/0x3c0 mm/slub.c:1944\n new_slab mm/slub.c:2004 [inline]\n ___slab_alloc+0x8df/0xf20 mm/slub.c:3005\n __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092\n slab_alloc_node mm/slub.c:3183 [inline]\n slab_alloc mm/slub.c:3225 [inline]\n __kmem_cache_alloc_lru mm/slub.c:3232 [inline]\n kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242\n dst_alloc+0x146/0x1f0 net/core/dst.c:92",
  "id": "GHSA-p2v4-3p7m-942v",
  "modified": "2025-09-22T21:30:16Z",
  "published": "2025-09-22T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49401"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cd9900a1ac8b0a4ff3cd97d4d77b7711be435bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd8c1fd8cdd14158f2d8bea2d1bfe8015dccfa3a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49401 (GCVE-0-2022-49401)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-05-11 18:59

Title

mm/page_owner: use strscpy() instead of strlcpy()

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/page_owner: use strscpy() instead of strlcpy() current->comm[] is not a string (no guarantee for a zero byte in it). strlcpy(s1, s2, l) is calling strlen(s2), potentially causing out-of-bound access, as reported by syzbot: detected buffer overflow in __fortify_strlen ------------[ cut here ]------------ kernel BUG at lib/string_helpers.c:980! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4087 Comm: dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fortify_panic+0x18/0x1a lib/string_helpers.c:980 Code: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49 40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff <0f> 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7 00 00 27 8a RSP: 0018:ffffc900000074a8 EFLAGS: 00010286 RAX: 000000000000002c RBX: ffff88801226b728 RCX: 0000000000000000 RDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87 RBP: ffffffff89da2aa0 R08: 000000000000002c R09: 0000000000000000 R10: ffffffff815fae2e R11: 0000000000000000 R12: ffff88801226b700 R13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: <IRQ> __fortify_strlen include/linux/fortify-string.h:128 [inline] strlcpy include/linux/fortify-string.h:143 [inline] __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171 __set_page_owner+0x3e/0x50 mm/page_owner.c:190 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x8df/0xf20 mm/slub.c:3005 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242 dst_alloc+0x146/0x1f0 net/core/dst.c:92

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/5cd9900a1ac8b0a4f…
https://git.kernel.org/stable/c/cd8c1fd8cdd14158f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 865ed6a3278654ce4a55eb74c5283eeb82ad4699 , < 5cd9900a1ac8b0a4ff3cd97d4d77b7711be435bf (git) Affected: 865ed6a3278654ce4a55eb74c5283eeb82ad4699 , < cd8c1fd8cdd14158f2d8bea2d1bfe8015dccfa3a (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 5.18.3 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/page_owner.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5cd9900a1ac8b0a4ff3cd97d4d77b7711be435bf",
              "status": "affected",
              "version": "865ed6a3278654ce4a55eb74c5283eeb82ad4699",
              "versionType": "git"
            },
            {
              "lessThan": "cd8c1fd8cdd14158f2d8bea2d1bfe8015dccfa3a",
              "status": "affected",
              "version": "865ed6a3278654ce4a55eb74c5283eeb82ad4699",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/page_owner.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.3",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_owner: use strscpy() instead of strlcpy()\n\ncurrent-\u003ecomm[] is not a string (no guarantee for a zero byte in it).\n\nstrlcpy(s1, s2, l) is calling strlen(s2), potentially\ncausing out-of-bound access, as reported by syzbot:\n\ndetected buffer overflow in __fortify_strlen\n------------[ cut here ]------------\nkernel BUG at lib/string_helpers.c:980!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN\nCPU: 0 PID: 4087 Comm: dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:fortify_panic+0x18/0x1a lib/string_helpers.c:980\nCode: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49 40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff \u003c0f\u003e 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7 00 00 27 8a\nRSP: 0018:ffffc900000074a8 EFLAGS: 00010286\n\nRAX: 000000000000002c RBX: ffff88801226b728 RCX: 0000000000000000\nRDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87\nRBP: ffffffff89da2aa0 R08: 000000000000002c R09: 0000000000000000\nR10: ffffffff815fae2e R11: 0000000000000000 R12: ffff88801226b700\nR13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600\nCall Trace:\n \u003cIRQ\u003e\n __fortify_strlen include/linux/fortify-string.h:128 [inline]\n strlcpy include/linux/fortify-string.h:143 [inline]\n __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171\n __set_page_owner+0x3e/0x50 mm/page_owner.c:190\n prep_new_page mm/page_alloc.c:2441 [inline]\n get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182\n __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408\n alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272\n alloc_slab_page mm/slub.c:1799 [inline]\n allocate_slab+0x26c/0x3c0 mm/slub.c:1944\n new_slab mm/slub.c:2004 [inline]\n ___slab_alloc+0x8df/0xf20 mm/slub.c:3005\n __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092\n slab_alloc_node mm/slub.c:3183 [inline]\n slab_alloc mm/slub.c:3225 [inline]\n __kmem_cache_alloc_lru mm/slub.c:3232 [inline]\n kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242\n dst_alloc+0x146/0x1f0 net/core/dst.c:92"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:59:02.455Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5cd9900a1ac8b0a4ff3cd97d4d77b7711be435bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd8c1fd8cdd14158f2d8bea2d1bfe8015dccfa3a"
        }
      ],
      "title": "mm/page_owner: use strscpy() instead of strlcpy()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49401",
    "datePublished": "2025-02-26T02:12:28.603Z",
    "dateReserved": "2025-02-26T02:08:31.565Z",
    "dateUpdated": "2026-05-11T18:59:02.455Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

Related by attack behaviour

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