CVE-2022-48832

audit: don't deref the syscall args when checking the openat2 open_how::flags

Description

In the Linux kernel, the following vulnerability has been resolved: audit: don't deref the syscall args when checking the openat2 open_how::flags As reported by Jeff, dereferencing the openat2 syscall argument in audit_match_perm() to obtain the open_how::flags can result in an oops/page-fault. This patch fixes this by using the open_how struct that we store in the audit_context with audit_openat2_how(). Independent of this patch, Richard Guy Briggs posted a similar patch to the audit mailing list roughly 40 minutes after this patch was posted.

N/A

CVSS

Severity:

EPSS 0.06%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c
https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c

Frequently Asked Questions

What is the severity of CVE-2022-48832?: CVE-2022-48832 has not yet been assigned a CVSS score.
How to fix CVE-2022-48832?: To fix CVE-2022-48832, 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-2022-48832 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-48832 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-2022-48832?: CVE-2022-48832 affects Linux Linux, Linux Linux.

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