CVE-2024-40969
In the Linux kernel, the following vulnerability has been resolved: f2fs: don't set RO when shutting down f2fs Shutdown does not check the error of thaw_super due to readonly, which causes a deadlock like below.…
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: don't set RO when shutting down f2fs Shutdown does not check the error of thaw_super due to readonly, which causes a deadlock like below. f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issue_discard_thread - bdev_freeze - freeze_super - f2fs_stop_checkpoint() - f2fs_handle_critical_error - sb_start_write - set RO - waiting - bdev_thaw - thaw_super_locked - return -EINVAL, if sb_rdonly() - f2fs_stop_discard_thread -> wait for kthread_stop(discard_thread);
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499aPatch
- https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7Patch
- https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563Patch
- https://git.kernel.org/stable/c/1036d3ea7a32cb7cee00885c73a1f2ba7fbc499aPatch
- https://git.kernel.org/stable/c/3bdb7f161697e2d5123b89fe1778ef17a44858e7Patch
- https://git.kernel.org/stable/c/f47ed3b284b38f235355e281f57dfa8fffcc6563Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.