Vulnerability Details CVE-2022-48832
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 8.7%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2022-48832
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cpe:2.3:o:linux:linux_kernel:5.16
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cpe:2.3:o:linux:linux_kernel:5.16.0
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cpe:2.3:o:linux:linux_kernel:5.16.1
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cpe:2.3:o:linux:linux_kernel:5.16.2
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cpe:2.3:o:linux:linux_kernel:5.16.3
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cpe:2.3:o:linux:linux_kernel:5.16.4
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cpe:2.3:o:linux:linux_kernel:5.16.5
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cpe:2.3:o:linux:linux_kernel:5.16.6
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cpe:2.3:o:linux:linux_kernel:5.16.7
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cpe:2.3:o:linux:linux_kernel:5.16.8
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cpe:2.3:o:linux:linux_kernel:5.16.9
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cpe:2.3:o:linux:linux_kernel:5.17