CVE-2024-49966: ocfs2: cancel dqi_sync_work before freeing oinfo
First published: Mon Oct 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=2.6.29<5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0d707a33c84b371cb66120e198eed3374726ddd8
- https://git.kernel.org/stable/c/14114d8148db07e7946fb06b56a50cfa425e26c7
- https://git.kernel.org/stable/c/35fccce29feb3706f649726d410122dd81b92c18
- https://git.kernel.org/stable/c/4173d1277c00baeedaaca76783e98b8fd0e3c08d
- https://git.kernel.org/stable/c/89043e7ed63c7fc141e68ea5a79758ed24b6c699
- https://git.kernel.org/stable/c/a4346c04d055bf7e184c18a73dbd23b6a9811118
- https://git.kernel.org/stable/c/bbf41277df8b33fbedf4750a9300c147e8f104eb
- https://git.kernel.org/stable/c/ef768020366f47d23f39c4f57bcb03af6d1e24b3
- https://git.kernel.org/stable/c/fc5cc716dfbdc5fd5f373ff3b51358174cf88bfc
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49966
- https://nvd.nist.gov/vuln/detail/CVE-2024-49966
- https://launchpad.net/bugs/cve/CVE-2024-49966
- https://security-tracker.debian.org/tracker/CVE-2024-49966
- https://ubuntu.com/security/CVE-2024-49966
- https://git.kernel.org/linus/35fccce29feb3706f649726d410122dd81b92c18
Frequently Asked Questions
What is the severity of CVE-2024-49966?
The severity of CVE-2024-49966 has not been explicitly rated, but it affects the Linux kernel's functionality.
How do I fix CVE-2024-49966?
To fix CVE-2024-49966, update the Linux kernel to the patched versions mentioned in the advisory.
What versions of the Linux kernel are affected by CVE-2024-49966?
CVE-2024-49966 affects multiple Linux kernel versions ranging from 2.6.29 to 6.11.
Is CVE-2024-49966 related to ocfs2 functionality?
Yes, CVE-2024-49966 is related to the ocfs2 functionality within the Linux kernel.
Can I circumvent CVE-2024-49966?
Circumventing CVE-2024-49966 is not recommended; applying the appropriate kernel update is the advised approach.
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