CVE-2024-26945

crypto: iaa - Fix nr_cpus < nr_iaa case

HIGH
8.4
CVSS Score
Published: May 1, 2024 at 05:18 AM UTC
Updated: June 17, 2026 at 07:18 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.8.36.8 ≤ v < 6.8.36.8 ≤ v < 6.91da177e4c3f46.9 rc1ea7a5cbb43696cfacf73e61916d1860ac30b5b2f
Vendor states this is fixed in 5a7e89d3315d1be86aff8a8bf849023cda6547f7 (fixed)
Vendor states this is fixed in a5ca1be7f9817de4e93085778b3ee2219bdc2664 (fixed)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 6.8.3 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5a7e89d3315d1be86aff8a8bf849023cda6547f7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a5ca1be7f9817de4e93085778b3ee2219bdc2664

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-369

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card