MEDIUMVulnerability
CVE-2026-64258
In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from ent_w_req_queue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuse_uring_req_end() will set ent->fuse_req to NULL but it will leave the entry on ent_w_req_queue in FRRS_FUSE_REQ state. This can lead to a NULL deref if the request expiration logic scans ent_w_req_queue in the window before the entry is moved off it. Fix this by taking the entry off ent_w_req_queue and changing its state from FRRS_FUSE_REQ to FRRS_INVALID before terminating the request.
Properties
- severity
- MEDIUM
- score
- 5.5
- cve_id
- CVE-2026-64258
- vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-07-25T10:17:05.930
- last_modified
- 2026-08-12T15:53:06.887
Related Entities (3)
HAS_WEAKNESS (1)
→[Weakness]NULL Pointer Dereference
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
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