CVE-2022-49921

HIGH

Linux Kernel 4.4.163-4.4.x - Use-After-Free in red_enqueue()

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: Fix use after free in red_enqueue() We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue").

References (8)

Core 8

Scores

CVSS v3 7.8
EPSS 0.0015
EPSS Percentile 4.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (22)
Linux/Linux < 4.7
Linux/Linux 4.14.299 - 4.14.*
Linux/Linux 4.19.265 - 4.19.*
Linux/Linux 4.4.163 - 4.5
Linux/Linux 4.7
Linux/Linux 4.9.333 - 4.9.*
Linux/Linux 5.10.154 - 5.10.*
Linux/Linux 5.15.78 - 5.15.*
Linux/Linux 5.4.224 - 5.4.*
Linux/Linux 6.0.8 - 6.0.*
... and 12 more
Published May 01, 2025
Tracked Since Feb 18, 2026