PT-2025-27750 · Linux+6 · Linux Kernel+6
Published
2025-04-07
·
Updated
2026-04-20
·
CVE-2025-38165
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
A panic in the Linux kernel can be triggered by executing a specific command, resulting in a kernel bug. The issue originates from the assertion BUG ON(skb shared(skb)) in skb linearize(). A previous commit introduced skb get() to avoid race conditions, but this caused the panic to always occur when skb linearize is executed. The panic can be reproduced by executing a command with the "--rx-strp 100000" parameter, which forces the RX path to use the strparser module and triggers skb linearize.
Recommendations:
To fix this issue, move skb get into sk psock skb ingress enqueue. For the verdict apply path, the skb get operation is unnecessary, so add a 'take ref' parameter to control its behavior.
Exploit
Fix
Memory Leak
Race Condition
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu