CVE-2023-53672
In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the…
Does this matter?
Lower severity and a low EPSS score (0.14%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
- 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
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149Patch
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19cPatch
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79Patch
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1dPatch
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89bPatch
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281Patch
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915Patch
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.