PT-2025-43119 · Linux+1 · Linux Kernel+1
Published
2025-10-22
·
Updated
2026-01-28
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CVE-2023-53718
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.5.0-rc1-00276-g20edcec23f92
Description
A flaw exists in the Linux kernel related to the ring buffer implementation. Specifically, the
cpu buffer can be swapped during a resize process, leading to an incorrect state and potentially causing a kernel oops. The issue occurs when ring buffer swap cpu is called during a resize operation. The provided scripts demonstrate a reproducible scenario involving modifications to the /sys/kernel/debug/tracing/buffer size kb file and triggering irqsoff/nop sequences. The root cause is an improper handling of buffer swapping during resizing, resulting in a corrupted state.Recommendations
Update the Linux kernel to version 6.5.0-rc1-00276-g20edcec23f92 or a later version to address this issue.
Exploit
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Related Identifiers
Affected Products
Linux Kernel
Suse