CVE-2023-0394

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-26 · updated 2026-06-17
Weakness: CWE-476

Description

A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash.

Affected products

Linux kernel: before 6.2; 6.2-rc1, 6.2-rc2, 6.2-rc3 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb3e9864cdbe35ff6378966660edbcbac955fe17
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://security.netapp.com/advisory/ntap-20230302-0005/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb3e9864cdbe35ff6378966660edbcbac955fe17
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://security.netapp.com/advisory/ntap-20230302-0005/

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