CVE-2026-64260

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux4a9bfb9b6850fec0685447aed280533cf980de70 < 39c8e925b207afceffaa5382416ed405e0223a03affected
LinuxLinux4a9bfb9b6850fec0685447aed280533cf980de70 < 4021a3a79eee551d95fe1e1e7c1b195d34ba8c08affected
LinuxLinux4a9bfb9b6850fec0685447aed280533cf980de70 < b70a3aca16934c196f92abb17b01c1647b9bb63caffected
LinuxLinux6.14affected
LinuxLinux0 < 6.14unaffected
LinuxLinux6.18.39 <= 6.18.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References