PT-2025-52891 · Linux · Linux Kernel
Syzbot
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Published
2025-11-26
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Updated
2026-03-07
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CVE-2025-68355
CVSS v2.0
4.3
Medium
| Vector | AV:A/AC:H/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A memory leak exists in the Linux kernel’s BPF (Berkeley Packet Filter) implementation related to exclusive maps. Specifically, when
excl prog hash is zero and excl prog hash size is non-zero, the map is not properly freed, leading to a memory leak. This issue was identified through testing by syzbot. The vulnerability occurs during map creation within the map create function in kernel/bpf/syscall.c. The sys bpf function in the same file is also implicated.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel