In the Linux kernel, the following vulnerability has been resolved:
platform/x86: ISST: Add a NULL check for sst_inst[]
To be consistent with other places, add a NULL check for failed socket
loading by checking isst_common.sst_inst[].
CVE-2026-89439
NONE
EPSS 0.21%
Updated Sep 11, 2026
Linux
https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVE Details
CVE ID
CVE-2026-89439
Published Date
Sep 11, 2026
Vendor
Linux
Severity
NONE
Exploit Prediction (EPSS)
Probability of Exploit
0.21%
Likelihood of exploitation in next 30 days
Percentile:
9.6th percentile (higher than 9.6% of all CVEs)
Standard patching cycle
Impact
Minimal impact
Source
View Advisory