btrfs: clean up our handling of refs == 0 in snapshot delete (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 18 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUG_ON(refs == 0), which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walk_down_proc we also BUG_ON(refs == 0), which could happen if we have extent tree corruption. Change that to return -EUCLEAN. In do_walk_down() we catch this case and handle it correctly, however we return -EIO, which -EUCLEAN is a more appropriate error code. Finally in walk_up_proc we have the same BUG_ON(refs == 0), so convert that to proper error handling. Also adjust the error message so we can actually do something with the information.
References
- https://git.kernel.org/stable/c/c847b28a799733b04574060ab9d00f215970627d
- https://git.kernel.org/stable/c/71291aa7246645ef622621934d2067400380645e
- https://git.kernel.org/stable/c/c60676b81fab456b672796830f6d8057058f029c
- https://git.kernel.org/stable/c/728d4d045b628e006b48a448f3326a7194c88d32
- https://git.kernel.org/stable/c/9cc887ac24b7a0598f4042ae9af6b9a33072f75b
- https://git.kernel.org/stable/c/7d1df13bf078ffebfedd361d714ff6cee1ff01b9
- https://git.kernel.org/stable/c/03804641ec2d0da4fa088ad21c88e703d151ce16
- https://git.kernel.org/stable/c/b8ccef048354074a548f108e51d0557d6adfd3a3
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-42101
- GCVE · GCVE-0-2024-46840
CERT-FR advisories
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0024 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0022 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1102 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1080 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1048 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1013 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0999 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0997 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0957 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0872 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0837 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.19.322cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.284cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.226cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.167cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.110cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.51cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.10.10
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2c47e605a91dde6b0514f689645e7ab336c8592a < c847b28a799733b04574060ab9d00f215970627d ; affected 2c47e605a91dde6b0514f689645e7ab336c8592a < 71291aa7246645ef622621934d2067400380645e ; affected 2c47e605a91dde6b0514f689645e7ab336c8592a < c60676b81fab456b672796830f6d8057058f029c ; affected 2c47e605a91dde6b0514f689645e7ab336c8592a < 728d4d045b628e006b48a448f3326a7194c88d32 ; affected 2c47e605a91dde6b0514f689645e7ab336c8592a < 9cc887ac24b7a0598f4042ae9af6b9a33072f75b ; affected 2c47e605a91dde6b0514f689645e7ab336c8592a < 7d1df13bf078ffebfedd361d714ff6cee1ff01b9 |
| Linux · Linux | affected 2.6.31 ; unaffected 0 < 2.6.31 ; unaffected 4.19.322 ≤ 4.19.* ; unaffected 5.4.284 ≤ 5.4.* ; unaffected 5.10.226 ≤ 5.10.* ; unaffected 5.15.167 ≤ 5.15.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |