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.

CVSS 3.1

8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-25)

Published

2026-08-22

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

• https://git.kernel.org/stable/c/58803870ba0841e53b630a1290c6838b091dd128
• https://git.kernel.org/stable/c/774394d27930ec4cf4cb3eed8ab6a4d20cb2430a
• https://git.kernel.org/stable/c/950dac9e8c4e3cf68fa8c01f77d3ac3b7369c6a9
• https://git.kernel.org/stable/c/b1896543ce59c4258625a35cf41e23a9a1f80ea2
• https://git.kernel.org/stable/c/fc3021284050ecb3bba8a7851340cedcb5037928

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