Riskcovery

CVE-2022-48832

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

State
Published
Severity
Not scored
Published
Jul 16, 2024
Updated
May 11, 2026
Reserved
Jul 16, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1c30e3af8a79260cdba833a719209b01e6b92300 to before 310c9ddfdf1f8d3c9834f02175eae79c8b254b6cAffected
  • 1c30e3af8a79260cdba833a719209b01e6b92300 to before 7a82f89de92aac5a244d3735b2bd162c1147620cAffected
LinuxLinux
  • 5.16Affected
  • before 5.16Not affected
  • 5.16.10 through 5.16.*Not affected
  • 5.17 and laterNot affected

References

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