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.

Scores

EPSS (exploitation in 30 days)

0.22% · top 88% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

• Linux · Linux

  • affected 1c30e3af8a79260cdba833a719209b01e6b92300 – < 310c9ddfdf1f8d3c9834f02175eae79c8b254b6c
  • affected 1c30e3af8a79260cdba833a719209b01e6b92300 – < 7a82f89de92aac5a244d3735b2bd162c1147620c

• Linux · Linux

  • affected 5.16
  • unaffected < 5.16
  • unaffected 5.16.10 – ≤ 5.16.*
  • unaffected 5.17 – ≤ *

References (2)

• https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c (opens in a new tab)x_transferred
• https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-48832](https://trackcve.app/badge/CVE-2022-48832.svg)](https://trackcve.app/cve/CVE-2022-48832)

Record last updated 11 May 2026, 18:48 UTC.