s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup (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: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70
- https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4
- https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1
- https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1
- https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b
- https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6
- https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac
- https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d
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 | Linux |
| 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 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| 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-2022-51331
- GCVE · GCVE-0-2022-48636
CERT-FR advisories
- CERTFR-2025-AVI-0212 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0526 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0496 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0458 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0440 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0420 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.25 < 4.9.330cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.295cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.260cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.215cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.146cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.71cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.19.12cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < d86b4267834e6d4af62e3073e48166e349ab1b70 ; affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < 49f401a98b318761ca2e15d4c7869a20043fbed4 ; affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < aaba5ff2742043705bc4c02fd0b2b246e2e16da1 ; affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < 2e473351400e3dd66f0b71eddcef82ee45a584c1 ; affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b ; affected 8e09f21574ea3028d5629e5de759e0b196c690c5 < d3a67c21b18f33c79382084af556557c442f12a6 |
| Linux · Linux | affected 2.6.25 ; unaffected 0 < 2.6.25 ; unaffected 4.9.330 ≤ 4.9.* ; unaffected 4.14.295 ≤ 4.14.* ; unaffected 4.19.260 ≤ 4.19.* ; unaffected 5.4.215 ≤ 5.4.* |
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 |