CVE-2024-26945

crypto: iaa - Fix nr_cpus < nr_iaa case

State: Published
Severity: 8.4 High
Published: May 1, 2024
Updated: May 11, 2026
Reserved: Feb 19, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

crypto: iaa - Fix nr_cpus < nr_iaa case

If nr_cpus < nr_iaa, the calculated cpus_per_iaa will be 0, which causes a divide-by-0 in rebalance_wq_table().

Make sure cpus_per_iaa is 1 in that case, and also in the nr_iaa == 0 case, even though cpus_per_iaa is never used if nr_iaa == 0, for paranoia.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-369 Divide By Zero

Affected Products

Product	Versions
LinuxLinux	ea7a5cbb43696cfacf73e61916d1860ac30b5b2f to before a5ca1be7f9817de4e93085778b3ee2219bdc2664Affected ea7a5cbb43696cfacf73e61916d1860ac30b5b2f to before 5a7e89d3315d1be86aff8a8bf849023cda6547f7Affected
LinuxLinux	6.8Affected before 6.8Not affected 6.8.3 through 6.8.*Not affected 6.9 and laterNot affected

References

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