CVE-2022-49497

low-risk
Published 2025-02-26

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.

Do I need to act?

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0.09% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (5)

Patch https://git.kernel.org/stable/c/312c43e98ed190bd8fd7a71a0addf9539d5b8ab1
Patch https://git.kernel.org/stable/c/6320ae1b5876c30bf98203b6a5abe8b5c45e6a04
Patch https://git.kernel.org/stable/c/b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73
Patch https://git.kernel.org/stable/c/d5281245f3502e960cb6b89348767b935379cee3
Patch https://git.kernel.org/stable/c/d7ea0d9df2a6265b2b180d17ebc64b38105968fc
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal