CVE-2022-49921

net: sched: Fix use after free in red_enqueue()

High · published May 1, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
8.5
In the wild
Unconfirmed
What it is

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").

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00193 · 8.5th percentile
Published
2025-05-01T14:11Z
EPSS history
Timeline
  • 01 MAY 14:11Z
    net: sched: Fix use after free in red_enqueue()
    cvelistv5