CVE-2026-64261

linux: In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuse_uring_a...

CVE-2026-64261 is fixed in 20 products on 1 platform, first by ALAS2023-2026-2045, released August 3, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuse_uring_async_stop_queues fuse_uring_async_stop_queues() might run when the last reference on ring->queue_refs was already dropped. In order to avoid an early destruction a reference on struct fuse_conn is now taken before starting fuse_uring_async_stop_queues() and that reference is only released when that delayed work queue terminates.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel-livepatch-6.18.39-79.141 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-devel · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-headers · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
linux · Debian 14 7.1.4-1 DEBIAN-CVE-2026-64261 Aug 7, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
perf6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
python3-perf6.18 · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.39-79.141.amzn2023 ALAS2023-2026-2045 Aug 3, 2026

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