Linux
CVE-2026-99217: In the Linux kernel, the following vulnerability has been resolved: fork: release the files of a failed fork after sched_cancel_fork() Reorder copy_process()
CVE-2026-99217 Nov 2, 2026 Source: Vendor
In the Linux kernel, the following vulnerability has been resolved:
fork: release the files of a failed fork after sched_cancel_fork()
Reorder copy_process() cleanup so sched_fork() taking scx_fork_rwsem
scx_pre_fork() is safe and isn't held around exiting files. Right now, a
fork that fails while another thread closed the bpf link fd will
deadlock against its own read side. It also blocks every fork on the
system:
copy_process() holds scx_fork_rwsem for read
exit_f
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-99217
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