PT-2025-49692 · Linux+1 · Linux Kernel+1
Published
2025-12-09
·
Updated
2026-02-24
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CVE-2022-50661
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contained a flaw in the seccomp implementation where memory leaks occurred in the
do seccomp() function. A syzbot instance identified unreferenced objects, including seccomp filter structures and associated objects, that were not being freed properly. This issue was triggered when a signal was sent to a process during a clone operation, specifically before the fatal signal pending() test in copy process(). The fix involved moving the copy seccomp() function to a non-failure path to ensure proper filter reference counting and prevent memory leaks. The backtrace indicates the issue involves functions such as do seccomp(), do syscall 64(), bpf prog alloc(), and bpf prog create from user().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel
Red Hat