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High severity7.5NVD Advisory· Published May 28, 2021· Updated Jun 17, 2026

CVE-2021-29628

CVE-2021-29628

Description

In FreeBSD 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7, a system call triggering a fault could cause SMAP protections to be disabled for the duration of the system call. This weakness could be combined with other kernel bugs to craft an exploit.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

15
  • FreeBSD/FreeBSDdescription
  • FreeBSD/FreeBSDllm-fuzzy14 versions
    < 13.0-STABLE before n245764-876ffe28796c, < 12.2-STABLE before r369857, < 13.0-RELEASE before p1, < 12.2-RELEASE before p7+ 13 more
    • (no CPE)range: < 13.0-STABLE before n245764-876ffe28796c, < 12.2-STABLE before r369857, < 13.0-RELEASE before p1, < 12.2-RELEASE before p7
    • cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:beta1-p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p5:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:12.2:p6:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.0:-:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.0:beta3-p1:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.0:rc4:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:13.0:rc5-p1:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

2

News mentions

0

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