drbd: fix null-pointer dereference on local read error (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbd_request_endio(), READ_COMPLETED_WITH_ERROR is passed to __req_mod() with a NULL peer_device: __req_mod(req, what, NULL, &m); The READ_COMPLETED_WITH_ERROR handler then unconditionally passes this NULL peer_device to drbd_set_out_of_sync(), which dereferences it, causing a null-pointer dereference. Fix this by obtaining the peer_device via first_peer_device(device), matching how drbd_req_destroy() handles the same situation.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42
- https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106
- https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89
- https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5
- https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f
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-2026-15211
- GCVE · GCVE-0-2026-23285
CERT-FR advisories
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0548 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0376 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.4 < 6.6.130cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.77cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.17cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.7cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0d11f3cf279c5ad20a41f29242f170ba3c02f2da < 6f1d1614f841d91a4169db65812ffd1271735b42 ; affected 0d11f3cf279c5ad20a41f29242f170ba3c02f2da < 1e906c08594c8f9a6a524f38ede2c4e051196106 ; affected 0d11f3cf279c5ad20a41f29242f170ba3c02f2da < 4e8935053ba389ae8d6685c10854d8021931bd89 ; affected 0d11f3cf279c5ad20a41f29242f170ba3c02f2da < 91df51d2df0ca4fd3281f73626341563d64a98a5 ; affected 0d11f3cf279c5ad20a41f29242f170ba3c02f2da < 0d195d3b205ca90db30d70d09d7bb6909aac178f |
| Linux · Linux | affected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.6.130 ≤ 6.6.* ; unaffected 6.12.77 ≤ 6.12.* ; unaffected 6.18.17 ≤ 6.18.* ; unaffected 6.19.7 ≤ 6.19.* |
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 |