bpf: Avoid splat in pskb_pull_reason (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.28 % · percentile 20 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid splat in pskb_pull_reason syzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug hint in pskb_may_pull. We'd like to retain this debug check because it might hint at integer overflows and other issues (kernel code should pull headers, not huge value). In bpf case, this splat isn't interesting at all: such (nonsensical) bpf programs are typically generated by a fuzzer anyway. Do what Eric suggested and suppress such warning. For CONFIG_DEBUG_NET=n we don't need the extra check because pskb_may_pull will do the right thing: return an error without the WARN() backtrace.
References
- https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761
- https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866
- https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a
- https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-38791
- GCVE · GCVE-0-2024-40996
CERT-FR advisories
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0823 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0778 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0613 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.86 < 6.1.96cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.27 < 6.6.36cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.9 < 6.9.7cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8af60bb2b215f478b886f1d6d302fefa7f0b917d < dacc15e9cb248d19e5fc63c54bef0b9b55007761 ; affected 1b2b26595bb09febf14c5444c873ac4ec90a5a77 < 7f9644782c559635bd676c12c59389a34ed7c866 ; affected 219eee9c0d16f1b754a8b85275854ab17df0850a < 5e90258303a358e88737afb5048bee9113beea3a ; affected 219eee9c0d16f1b754a8b85275854ab17df0850a < 2bbe3e5a2f4ef69d13be54f1cf895b4658287080 ; affected fff05b2b004d9a8a2416d08647f3dc9068e357c8 ; affected 6.1.86 < 6.1.96 |
| Linux · Linux | affected 6.9 ; unaffected 0 < 6.9 ; unaffected 6.1.96 ≤ 6.1.* ; unaffected 6.6.36 ≤ 6.6.* ; unaffected 6.9.7 ≤ 6.9.* ; unaffected 6.10 ≤ * |
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 |