CVE-2022-49921

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Source
https://cve.org/CVERecord?id=CVE-2022-49921
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49921.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49921
Downstream
Related
Published
2025-05-01T14:11:00.309Z
Modified
2026-03-20T12:24:47.115072Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
net: sched: Fix use after free in red_enqueue()
Details

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 qdiscenqueue(). This is basically identical to commit 2f09707d0c97 ("schsfb: Also store skb len before calling child enqueue").

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49921.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Fixed
795afe0b9bb6c915f0299a8e309936519be01619
Fixed
a238cdcf2bdc72207c74375fc8be13ee549ca9db
Fixed
e877f8fa49fbccc63cb2df2e9179bddc695b825a
Fixed
52e0429471976785c155bfbf51d80990c6cd46e2
Fixed
5960b9081baca85cc7dcb14aec1de85999ea9d36
Fixed
fc4b50adb400ee5ec527a04073174e8e73a139fa
Fixed
170e5317042c302777ed6d59fdb84af9b0219d4e
Fixed
8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ab0b3b9dbf559a5633d460e748144697bd2d3aa3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49921.json"