Bug 2348018 (CVE-2022-49497)

Summary:	CVE-2022-49497 kernel: net: remove two BUG() from skb_checksum_help()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-02-26 03:14:46 UTC

In the Linux kernel, the following vulnerability has been resolved:

net: remove two BUG() from skb_checksum_help()

I have a syzbot report that managed to get a crash in skb_checksum_help()

If syzbot can trigger these BUG(), it makes sense to replace
them with more friendly WARN_ON_ONCE() since skb_checksum_help()
can instead return an error code.

Note that syzbot will still crash there, until real bug is fixed.

Comment 1 Avinash Hanwate 2025-02-26 12:01:14 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022607-CVE-2022-49497-bfc0@gregkh/T

Comment 2 Avinash Hanwate 2025-02-26 16:23:12 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022607-CVE-2022-49497-bfc0@gregkh/T