CVE-2025-39976 - futex: Use correct exit on failure from futex_hash_allocate_default()

CVE-2025-39976 - futex: Use correct exit on failure from futex_hash_allocate_default()

https://cvefeed.io/rssfeed/latest.atom / Wed, 10/15/2025 - 11:43
CVE ID : CVE-2025-39976
Published : Oct. 15, 2025, 7:55 a.m. | 7 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: futex: Use correct exit on failure from futex_hash_allocate_default() copy_process() uses the wrong error exit path from futex_hash_allocate_default(). After exiting from futex_hash_allocate_default(), neither tasklist_lock nor siglock has been acquired. The exit label bad_fork_core_free unlocks both of these locks which is wrong. The next exit label, bad_fork_cancel_cgroup, is the correct exit. sched_cgroup_fork() did not allocate any resources that need to freed. Use bad_fork_cancel_cgroup on error exit from futex_hash_allocate_default().
Severity: 0.0 | NA
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