CVE-2026-74690

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ismdevexit A ism interrupt handler can be active in parallel with ismdevexit, accessing freed data structures. No new interrupts will be generated after unregisterieq. Drain ongoing interru...

CVE-2026-74690

CVE-2026-74690 is a Use-After-Free vulnerability in the Linux kernel 's s390/ism (Interrupt Sharing Module) subsystem. An ISM interrupt handler can remain active in parallel with ism_dev_exit(), accessing already-freed sba and ieq data structures. The fix ensures that after unregister_ieq() no ne...

CVE-2026-74690 s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ismdevexit A ism interrupt handler can be active in parallel with ismdevexit, accessing freed data structures. No new interrupts will be generated after unregisterieq. Drain ongoing interru...

EUVD-2026-64377

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ismdevexit A ism interrupt handler can be active in parallel with ismdevexit, accessing freed data structures. No new interrupts will be generated after unregisterieq. Drain ongoing interru...