Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential hang in nilfs_detach_log_writer() Syzbot has reported a potential hang in nilfs_detach_log_writer() called during nilfs2 unmount. Analysis revealed that this is because nilfs_segctor_sync(), which synchronizes with the log writer thread, can be called after nilfs_segctor_destroy() terminates that thread, as shown in the call trace below: nilfs_detach_log_writer nilfs_segctor_destroy nilfs_segctor_kill_thread --> Shut down log writer thread flush_work nilfs_iput_work_func nilfs_dispose_list iput nilfs_evict_inode nilfs_transaction_commit nilfs_construct_segment (if inode needs sync) nilfs_segctor_sync --> Attempt to synchronize with log writer thread *** DEADLOCK *** Fix this issue by changing nilfs_segctor_sync() so that the log writer thread returns normally without synchronizing after it terminates, and by forcing tasks that are already waiting to complete once after the thread terminates. The skipped inode metadata flushout will then be processed together in the subsequent cleanup work in nilfs_segctor_destroy().
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.19.316 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/06afce714d87c7cd1dcfccbcd800c5c5d2cf1cfdPatch
- https://git.kernel.org/stable/c/1c3844c5f4eac043954ebf6403fa9fd1f0e9c1c0Patch
- https://git.kernel.org/stable/c/6e5c8e8e024e147b834f56f2115aad241433679bPatch
- https://git.kernel.org/stable/c/911d38be151921a5d152bb55e81fd752384c6830Patch
- https://git.kernel.org/stable/c/a8799662fed1f8747edae87a1937549288baca6aPatch
- https://git.kernel.org/stable/c/bc9cee50a4a4ca23bdc49f75ea8242d8a2193b3bPatch
- https://git.kernel.org/stable/c/c516db6ab9eabbedbc430b4f93b0d8728e9b427fPatch
- https://git.kernel.org/stable/c/eb85dace897c5986bc2f36b3c783c6abb8a4292ePatch
- https://git.kernel.org/stable/c/eff7cdf890b02596b8d73e910bdbdd489175dbdbPatch
- https://git.kernel.org/stable/c/06afce714d87c7cd1dcfccbcd800c5c5d2cf1cfdPatch
- https://git.kernel.org/stable/c/1c3844c5f4eac043954ebf6403fa9fd1f0e9c1c0Patch
- https://git.kernel.org/stable/c/6e5c8e8e024e147b834f56f2115aad241433679bPatch
- https://git.kernel.org/stable/c/911d38be151921a5d152bb55e81fd752384c6830Patch
- https://git.kernel.org/stable/c/a8799662fed1f8747edae87a1937549288baca6aPatch
- https://git.kernel.org/stable/c/bc9cee50a4a4ca23bdc49f75ea8242d8a2193b3bPatch
FAQ
What is CVE-2024-38582?
CVE-2024-38582 is a vulnerability with a CVSS score of 5.3 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential hang in nilfs_detach_log_writer() Syzbot has reported a potential hang in nilfs_detach_log_writer() called d...
How severe is CVE-2024-38582?
CVE-2024-38582 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-38582?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.