CVE-2026-23285
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,…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.