PT-2025-54072 · Linux · Linux Kernel
Published
2025-12-30
·
Updated
2026-02-24
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CVE-2023-54243
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a use-after-free issue within the ebtables component. Specifically, the issue occurs during table unregistration, where a table blob may be freed prematurely, leading to a potential crash. The problem arises because the
find table lock function can return a valid table with a non-zero return value, which is not handled correctly, resulting in the use of the freed memory. A Syzbot report indicates a kernel address sanitizer (KASAN) detection of a vmalloc-out-of-bounds read in the ebt unregister table function.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