CVE-2026-64263
NVD: In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix moving cancelled entry to ent_in_userspace list fuse_uring_cancel() moves entries that are available (these have no reqs attached) to the ent_in_userspace list. NVD: ent_list_request_expired() checks the first entry on ent_in_userspace and dereferences ent->fuse_req unconditionally, which will crash on a cancelled entry that was moved to this list. NVD: Fix this by freeing the entry and dropping queue_refs directly in fuse_uring_cancel().
- Severity
UNKNOWN EPSS
0.0020 (10) KEV
-
Source-published summary
NVD: In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix moving cancelled entry to ent_in_userspace list fuse_uring_cancel() moves entries that are available (these have no reqs attached) to the ent_in_userspace list. NVD: ent_list_request_expired() checks the first entry on ent_in_userspace and dereferences ent->fuse_req unconditionally, which will crash on a cancelled entry that was moved to this list. NVD: Fix this by freeing the entry and dropping queue_refs directly in fuse_uring_cancel().
Possible impact
This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.
Affected context
vendor/product: Kernel; package/component: Kernel
Remediation / advisory
Remediation reference present; patch status requires confirmation in the linked advisory.
Why it matters
This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; EPSS percentile 10; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.