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 ism_dev_exit() A ism interrupt handler can be active in parallel wi…
Published: 2026-08-22 · CVSS: 8.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7