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module: fix [e_shstrndx].sh_size=0 OOB access

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: module: fix [e_shstrndx].sh_size=0 OOB access It is trivial to craft a module to trigger OOB access in this line: if (info->secstrings[strhdr->sh_size - 1] != '\0') { BUG: unable to handle page fault for address: ffffc90000aa0fff PGD 100000067 P4D 100000067 PUD 100066067 PMD 10436f067 PTE 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 7 PID: 1215 Comm: insmod Not tainted 5.18.0-rc5-00007-g9bf578647087-dirty #10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014 RIP: 0010:load_module+0x19b/0x2391 [rebased patch onto modules-next]

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.54, 5.17.14, 5.18.3
CVEs
CVE-2022-49444
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 18:54 UTC · Revision 1

Source evidence

module: fix [e_shstrndx].sh_size=0 OOB access

core-osv · Original source

Published 26 Feb 2025, 02:12 UTC

In the Linux kernel, the following vulnerability has been resolved: module: fix [e_shstrndx].sh_size=0 OOB access It is trivial to craft a module to trigger OOB access in this line: if (info->secstrings[strhdr->sh_size - 1] != '\0') { BUG: unable to handle page fault for address: ffffc90000aa0fff PGD 100000067 P4D 100000067 PUD 100066067 PMD 10436f067 PTE 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 7 PID: 1215 Comm: insmod Not tainted 5.18.0-rc5-00007-g9bf578647087-dirty #10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014 RIP: 0010:load_module+0x19b/0x2391 [rebased patch onto modules-next]

osv:CVE-2022-49444

Kernel

Fixed versions: 5.15.54, 5.17.14, 5.18.3

Complete source record
{
  "id": "d034970db136b4b56ba1f94b0f486a436f7255be28ff6c66aeccd16b18494a9b",
  "url": "https://osv.dev/vulnerability/CVE-2022-49444",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "module: fix [e_shstrndx].sh_size=0 OOB access",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: module: fix [e_shstrndx].sh_size=0 OOB access It is trivial to craft a module to trigger OOB access in this line: if (info->secstrings[strhdr->sh_size - 1] != '\\0') { BUG: unable to handle page fault for address: ffffc90000aa0fff PGD 100000067 P4D 100000067 PUD 100066067 PMD 10436f067 PTE 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 7 PID: 1215 Comm: insmod Not tainted 5.18.0-rc5-00007-g9bf578647087-dirty #10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014 RIP: 0010:load_module+0x19b/0x2391 [rebased patch onto modules-next]",
    "evidence": "osv:CVE-2022-49444",
    "products": [
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          "evidence": "/affected/1/package/name"
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      "modified": "2026-10-28T02:30:51.450340430Z",
      "provider": "osv",
      "references": [
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        "https://git.kernel.org/stable/c/391e982bfa632b8315235d8be9c0a81374c6a19c",
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        "https://git.kernel.org/stable/c/921630e2e5124a04158129a8f22f4b425e61a858",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49444.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49444",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
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        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49444.json"
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        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 520152,
  "published_at": "2025-02-26T02:12:56.606+00:00"
}