proc: protect ptrace_may_access() with exec_update_lock (part 1) (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (part 1) Fix the easy cases where procfs currently calls ptrace_may_access() without exec_update_lock protection, where the fix is to simply add the extra lock or use mm_access(): - do_task_stat(): grab exec_update_lock - proc_pid_wchan(): grab exec_update_lock - proc_map_files_lookup(): use mm_access() instead of get_task_mm() - proc_map_files_readdir(): use mm_access() instead of get_task_mm() - proc_ns_get_link(): grab exec_update_lock - proc_ns_readlink(): grab exec_update_lock
References
- https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d
- https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7
- https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9
- https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0
- https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4
- https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3
- https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e
- https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.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-2026-48915
- GCVE · GCVE-0-2026-64371
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1298 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1203 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1031 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0982 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0981 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.27.23 < 2.6.28cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.29.3 < 2.6.30cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.30.1 < 5.10.261cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.212cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.178cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.145cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.97cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.40cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.1.4cpe:2.3:o:linux:linux_kernel:2.6.30:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:2.6.30:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:2.6.30:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:2.6.30:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:2.6.30:rc8:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < ae1e630bcaac739f625822078edbaea98366930d ; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < d54f14655fd7d7b293698a8b6918563c4c0465e7 ; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9 ; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < 7456ae990a9738962b33146916fabca62ae3d4e0 ; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4 ; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d < f9b4b03ccc9c69bf7f7298d4559906ebea7143b3 |
| Linux · Linux | affected 2.6.30 ; unaffected 0 < 2.6.30 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* |
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 |