CVE-2026-23285
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 6.6.130
- Linux Kernel < 6.12.77
- Linux Kernel < 6.18.17
- Linux Kernel < 6.19.7
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-23285.md and follow it. Check whether this project is affected by CVE-2026-23285. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f
- https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106
- https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89
- https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42
- https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5
References
- https://git.kernel.org/stable/c/0d195d3b205ca90db30d70d09d7bb6909aac178f
- https://git.kernel.org/stable/c/1e906c08594c8f9a6a524f38ede2c4e051196106
- https://git.kernel.org/stable/c/4e8935053ba389ae8d6685c10854d8021931bd89
- https://git.kernel.org/stable/c/6f1d1614f841d91a4169db65812ffd1271735b42
- https://git.kernel.org/stable/c/91df51d2df0ca4fd3281f73626341563d64a98a5