🛡️ CVE-2025-68355 — kernel

⚪ Unknown ✅ No Known Exploit NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

bpf: Fix exclusive map memory leak

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix exclusive map memory leak

When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also

needs to be freed. Otherwise, the map memory will not be reclaimed, just

like the memory leak problem reported by syzbot [1].

syzbot reported:

BUG: memory leak

backtrace (crc 7b9fb9b4):

map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512

__sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131

Affected software

CVE-2025-68355 is recorded against 2 packages.

  • kernel (from 6.18.0 up to 6.18.2)
  • unknown

Timeline and source

Published on 24 December 2025 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-68355 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-24
Updated 2026-08-12
Modified 2026-07-15
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 6.18.0 6.18.2
unknown — —

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