CVE-2022-49497

net: remove two BUG() from skb_checksum_help()

State: Published
Severity: 5.5 Medium
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a030847e9f0eed2a080f6114381c649a7aa43d25 to before 312c43e98ed190bd8fd7a71a0addf9539d5b8ab1Affected a030847e9f0eed2a080f6114381c649a7aa43d25 to before 6320ae1b5876c30bf98203b6a5abe8b5c45e6a04Affected a030847e9f0eed2a080f6114381c649a7aa43d25 to before d5281245f3502e960cb6b89348767b935379cee3Affected a030847e9f0eed2a080f6114381c649a7aa43d25 to before b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73Affected a030847e9f0eed2a080f6114381c649a7aa43d25 to before d7ea0d9df2a6265b2b180d17ebc64b38105968fcAffected
LinuxLinux	2.6.24Affected before 2.6.24Not affected 5.10.121 through 5.10.Not affected 5.15.46 through 5.15.Not affected 5.17.14 through 5.17.Not affected 5.18.3 through 5.18.Not affected 5.19 and laterNot affected

Product

Versions

LinuxLinux

a030847e9f0eed2a080f6114381c649a7aa43d25 to before 312c43e98ed190bd8fd7a71a0addf9539d5b8ab1Affected
a030847e9f0eed2a080f6114381c649a7aa43d25 to before 6320ae1b5876c30bf98203b6a5abe8b5c45e6a04Affected
a030847e9f0eed2a080f6114381c649a7aa43d25 to before d5281245f3502e960cb6b89348767b935379cee3Affected
a030847e9f0eed2a080f6114381c649a7aa43d25 to before b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73Affected
a030847e9f0eed2a080f6114381c649a7aa43d25 to before d7ea0d9df2a6265b2b180d17ebc64b38105968fcAffected

LinuxLinux

2.6.24Affected
before 2.6.24Not affected
5.10.121 through 5.10.*Not affected
5.15.46 through 5.15.*Not affected
5.17.14 through 5.17.*Not affected
5.18.3 through 5.18.*Not affected
5.19 and laterNot affected

References

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