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CVE-2025-39976 PUBLISHED

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().

EPSS 0.03% · 7.1th percentile

Risk Scores

EPSS Score
0.03%
7.1th percentile

Affected Products

VendorProductVersions
LinuxLinux7c4f75a21f636486d2969d9b6680403ea8483539, 7c4f75a21f636486d2969d9b6680403ea8483539, 6.16
linuxlinux_kernel6.16, 6.16

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References

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