CVE-2026-90156
CVE CVE-2026-90156EUVD EUVD-2026-81749Published 2026-09-17T16:06:48.000ZLast changed 2026-09-18T17:49:20.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely discard unregistered deferred locks When vfs_lock_file() defers a lock, smb2_lock() puts its ksmbd_lock on rollback_list before allocating and registering the asynchronous work. If either operation fails, rollback assumes that smb_lock->conn is initialized and dereferences NULL. The deferred file_lock also remains linked into the VFS blocked-lock state while it is freed. Keep the lock off rollback_list until async setup succeeds. On setup failures, explicitly unblock and wake the deferred lock before freeing it and its ksmbd wrapper.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <d09af9a35ff7b77a950b507133d9092aadbfeff4; patch: 7.3-rc1; patch: 0; patch: 7.2.6; 5.15; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <054bcca4cd9f00719b01f7108b51a2168fb94f15
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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