CVE-2022-49497

net: remove two BUG() from skb_checksum_help()

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/312c43e98ed190bd8fd7a71a0addf9539d5b8ab1	patch
https://git.kernel.org/stable/c/6320ae1b5876c30bf98203b6a5abe8b5c45e6a04	patch
https://git.kernel.org/stable/c/d5281245f3502e960cb6b89348767b935379cee3	patch
https://git.kernel.org/stable/c/b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73	patch
https://git.kernel.org/stable/c/d7ea0d9df2a6265b2b180d17ebc64b38105968fc	patch

Frequently Asked Questions

What is the severity of CVE-2022-49497?: CVE-2022-49497 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49497?: To fix CVE-2022-49497, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49497 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49497 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49497?: CVE-2022-49497 affects Linux Linux, Linux Linux.

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