btrfs: clear free space tree creation state on rebuild failure
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 6.18.54, 7.2.8
- 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: clear free space tree creation state on rebuild failure btrfs_rebuild_free_space_tree() sets BTRFS_FS_CREATING_FREE_SPACE_TREE before rebuilding the free space tree. Several error paths return without clearing this flag. The transaction restart failure path can leave the flag set on a live filesystem, causing delayed reference processing to be skipped. Clear it on all free space tree rebuild failure paths. Keep BTRFS_FS_FREE_SPACE_TREE_UNTRUSTED set, since a failed rebuild leaves the free space tree untrusted. Callers must fall back to extent-tree caching.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 882af9f13e830c0a4ef696bb72cd5998a5067a93 · fixed in a32bedab8ece9d1f90a1476a5b486a1804dc78ba; From 882af9f13e830c0a4ef696bb72cd5998a5067a93 · fixed in b1df2997d0cd2be7bef7b4ab64ccfd1019dedc81; From 882af9f13e830c0a4ef696bb72cd5998a5067a93 · fixed in 3565893cc72cdf6b795cf6a33e7ff9605322334d
- Linux Linux
6.14
- KernelLinux
From 6.14.0 · fixed in 6.18.54; From 6.19.0 · fixed in 7.2.8