CVE-2023-53672
btrfs: output extra debug info if we failed to find an inline backref
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.9
References 8
git.kernel.org
- stable/c/376b41524b71e494514720bd6114325b0a2ed19c
- stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
- stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
- stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
- stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
- stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
- stable/c/e70ba449b04b40584bdabb383d10455397cbf177
- stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281