What is CVE-2026-74690?

CVE-2026-74690 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.19 onward and patched in 6.18.45, 7.1.9 and 7.2. CVE-2026-74690 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-74690?

CVE-2026-74690 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-74690?

Yes, CVE-2026-74690 has been patched. Fixed versions include 6.18.45, 7.1.9 and 7.2. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-74690 actively exploited?

CVE-2026-74690 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-74690

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ism_dev_exit() A ism interrupt handler can be active in parallel with ism_dev_exit(), accessing freed data structures. No new interrupts will be generated after unregister_ieq(). Drain ongoing interrupt handlers by free_irq(), before freeing ism data structures.

Package Linux Kernel

Published 2026-08-22

Last modified 2026-08-22

Patch available

Yes

Affected versions

Linux kernel versions 4.19 and later are affected. Fixed in 6.18.45, 7.1.9, 7.2 and their respective stable series.

Affected from

≥ 4.19

Fixed in

✓ 6.18.45 6.18.x ✓ 7.1.9 7.1.x ✓ 7.2

References

3 total

Frequently asked questions

What is CVE-2026-74690?

CVE-2026-74690 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.19 onward and has been patched in 6.18.45, 7.1.9 and 7.2. CVE-2026-74690 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-74690?

Yes. CVE-2026-74690 has been patched. Fixed versions include 6.18.45, 7.1.9 and 7.2. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-74690 actively exploited?

No. CVE-2026-74690 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.