PT-2025-54149 · Linux · Linux Kernel
Published
2025-12-30
·
Updated
2026-03-24
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CVE-2023-54303
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel related to preemption handling within the
bpf perf event output function. The nesting protection in this function relies on disabled preemption, which is guaranteed for kprobes and tracepoints. However, when called from uprobe contexts through bpf prog run array sleepable, preemption remains enabled. This can lead to task preemption by another task while inside the nesting protection, potentially causing concurrent access to the same perf sample data buffer and resulting in crashes. The function bpf perf event output is involved in the issue.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