CVE-2026-64258
- Source
- https://cve.org/CVERecord?id=CVE-2026-64258
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64258.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-64258
- Downstream
- Related
- Published
- 2026-07-25T08:49:10Z
- Modified
- 2026-08-18T03:30:59Z
- Summary
- fuse-uring: remove request-less entries from ent_w_req_queue to fix NULL deref
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64258.json" }- References
-
- https://git.kernel.org/stable/c/0a7f33010c0e4cd92937e088a54350381fd0fbf2
- https://git.kernel.org/stable/c/0b466cf1b96e191b06b496c4de79da15315c3a9a
- https://git.kernel.org/stable/c/1c57a69be962d459c5e705f5cb4355b841b3461c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64258.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64258
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git