bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.22 % · centile 12 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.
Faiblesses (CWE)
- CWE-476 — Déréférencement de pointeur nul
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| 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) |
Références européennes
- ENISA EUVD · EUVD-2022-53649
- GCVE · GCVE-0-2022-48770
Avis du CERT-FR
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0693 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0578 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.9 < 5.10.96cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.5cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 < ff6bdc205fd0a83bd365405d4e31fb5905826996 ; affected fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 < 0bcd484587b3b3092e448d27dc369e347e1810c3 ; affected fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 < b82ef4985a6d05e80f604624332430351df7b79a ; affected fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 < b992f01e66150fc5e90be4a96f5eb8e634c8249e |
| Linux · Linux | affected 5.9 ; unaffected 0 < 5.9 ; unaffected 5.10.96 ≤ 5.10.* ; unaffected 5.15.19 ≤ 5.15.* ; unaffected 5.16.5 ≤ 5.16.* ; unaffected 5.17 ≤ * |
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 |