CVE-2023-53672
btrfs: output extra debug info if we failed to find an inline backref
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Timeline
ID reserved
By Linux
Published
- 7 months later
· 7 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 376b41524b71e494514720bd6114325b0a2ed19c
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 400e08a16604b534fdd82c5a288fa150d04f5f79
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 7afbfde45d665953b4d5a42a721e15bf0315d89b
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < b7c3cf2f6c42e6688b1c37215a0b1663f982f915
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 6994f806c6d1ae8b59344d3700358547f3b3fe1d
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 28062cd6eda04035d8f6ded2001292ac8b496149
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < e70ba449b04b40584bdabb383d10455397cbf177
- affected 492104c866cb1b62a11393adccb477f5cd2c7768 – < 7f72f50547b7af4ddf985b07fc56600a4deba281
- affected 3.9
- unaffected < 3.9
- unaffected 4.14.326 – ≤ 4.14.*
- unaffected 4.19.295 – ≤ 4.19.*
- unaffected 5.4.257 – ≤ 5.4.*
- unaffected 5.10.197 – ≤ 5.10.*
- unaffected 5.15.133 – ≤ 5.15.*
- unaffected 6.1.55 – ≤ 6.1.*
- unaffected 6.5.5 – ≤ 6.5.*
- unaffected 6.6 – ≤ *
References (8)
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c (opens in a new tab)
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79 (opens in a new tab)
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b (opens in a new tab)
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915 (opens in a new tab)
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d (opens in a new tab)
- https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149 (opens in a new tab)
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177 (opens in a new tab)
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53672)Record last updated .