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, &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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f	Patch
https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106	Patch
https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89	Patch
https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42	Patch
https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::

History

No history.

Information

Published : 2026-03-25 11:16

Updated : 2026-06-17 10:21

NVD link : CVE-2026-23285

Mitre link : CVE-2026-23285

CVE.ORG link : CVE-2026-23285

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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obtaining the peer_device via first_peer_device(device),\nmatching how drbd_req_destroy() handles the same situation."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrbd: correcci\u00f3n de desreferencia de puntero nulo en error de lectura local\n\nEn drbd_request_endio(), READ_COMPLETED_WITH_ERROR se pasa a __req_mod() con un peer_device NULO:\n\n__req_mod(req, what, NULL, &m);\n\nEl gestor de READ_COMPLETED_WITH_ERROR luego pasa incondicionalmente este peer_device NULO a drbd_set_out_of_sync(), que lo desreferencia, causando una desreferencia de puntero nulo.\n\nEsto se corrige obteniendo el peer_device a trav\u00e9s de first_peer_device(device), coincidiendo con c\u00f3mo drbd_req_destroy() maneja la misma situaci\u00f3n."}], "lastModified": "2026-06-17T10:21:15.373", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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