fs/proc: fix softlockup in __read_vmcore (part 2) (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 15 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The second loop in __read_vmcore has a lot more opportunities for natural sleep points, like scheduling out while waiting for a data write to happen, but apparently that is not always enough. Add a cond_resched() to the second loop in __read_vmcore to (hopefully) get rid of the softlockups.
References
- https://git.kernel.org/stable/c/84c4ed15626574c9ac6c1039ba9c137a77bcc7f2
- https://git.kernel.org/stable/c/80da29deb88a3a907441fc35bb7bac309f31e713
- https://git.kernel.org/stable/c/649b266606bc413407ce315f710c8ce8a88ee30a
- https://git.kernel.org/stable/c/65c367bd9d4f43513c7f837df5753bea9561b836
- https://git.kernel.org/stable/c/a5a2ee8144c3897d37403a69118c3e3dc5713958
- https://git.kernel.org/stable/c/80828540dad0757b6337c6561d49c81038f38d87
- https://git.kernel.org/stable/c/cbc5dde0a461240046e8a41c43d7c3b76d5db952
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.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 | CISA-ADP |
| 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) |
| 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 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2025-2643
- GCVE · GCVE-0-2025-21694
CERT-FR advisories
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0559 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0366 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0349 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0308 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0276 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0184 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19.317 < 4.20cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.279 < 5.4.290cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.221 < 5.10.234cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15.162 < 5.15.177cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.95 < 6.1.127cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.35 < 6.6.74cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.9.6 < 6.12.11cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.13:rc7:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 803d5a33d5ffdc2d86dcc0cfa01655a330612cdb < 84c4ed15626574c9ac6c1039ba9c137a77bcc7f2 ; affected 70c1835e776c8447c1aca87ddb38cfe764fe756a < 80da29deb88a3a907441fc35bb7bac309f31e713 ; affected e1b160a50c756e0efbea290b9bf5117cb80e8c4b < 649b266606bc413407ce315f710c8ce8a88ee30a ; affected a373ad833a6bfe4bc6cedcf7e56a99cc6fd9a193 < 65c367bd9d4f43513c7f837df5753bea9561b836 ; affected 518fbd644dabb6aedbdd4939c6c9cc1bf651459f < a5a2ee8144c3897d37403a69118c3e3dc5713958 ; affected 5cbcb62dddf5346077feb82b7b0c9254222d3445 < 80828540dad0757b6337c6561d49c81038f38d87 |
| Linux · Linux | affected 6.10 ; unaffected 0 < 6.10 ; unaffected 5.4.290 ≤ 5.4.* ; unaffected 5.10.234 ≤ 5.10.* ; unaffected 5.15.177 ≤ 5.15.* ; unaffected 6.1.127 ≤ 6.1.* |
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 |