CVE-2026-23285
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbd_requ...
Published: 2026-03-25 · Last updated: 2026-05-22
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-476
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-23285
- [Patch]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
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