Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.4, < 6.6.130 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178fPatch
- https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106Patch
- https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89Patch
- https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42Patch
- https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5Patch
FAQ
What is CVE-2026-23285?
CVE-2026-23285 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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()...
How severe is CVE-2026-23285?
CVE-2026-23285 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23285?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.