CVE-2026-64260

fuse-uring: Avoid queue->stopped races and set/read that value under lock

HIGH
7.8
CVSS Score
Published: July 25, 2026 at 08:49 AM UTC
Updated: August 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid queue->stopped races and set/read that value under lock There are several readers of queue->stopped that check the value under lock, but fuse_uring_commit_fetch() did not and actually the value was not set under the lock in fuse_uring_abort_end_requests() either. Especially in fuse_uring_commit_fetch it is important to check under a lock, because due to races 'struct fuse_req' might be freed with fuse_request_end, but another thread/cpu might already do teardown work.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.14 ≤ v < 6.18.396.14 ≤ v < 7.1.46.14 ≤ v < 7.26.19 ≤ v < 7.1.44a9bfb9b6850fec0685447aed280533cf980de706.14
Vendor states this is fixed in 39c8e925b207afceffaa5382416ed405e0223a03 (fixed)
Vendor states this is fixed in 4021a3a79eee551d95fe1e1e7c1b195d34ba8c08 (fixed)
Vendor states this is fixed in b70a3aca16934c196f92abb17b01c1647b9bb63c (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.39 (unaffected)
Vendor states this is fixed in 7.1.4 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362

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