CVE-2026-23285 (GCVE-0-2026-23285)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-11 22:03
VLAI
Title
drbd: fix null-pointer dereference on local read error
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 6f1d1614f841d91a4169db65812ffd1271735b42 (git)
Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 1e906c08594c8f9a6a524f38ede2c4e051196106 (git)
Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 4e8935053ba389ae8d6685c10854d8021931bd89 (git)
Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 91df51d2df0ca4fd3281f73626341563d64a98a5 (git)
Affected: 0d11f3cf279c5ad20a41f29242f170ba3c02f2da , < 0d195d3b205ca90db30d70d09d7bb6909aac178f (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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