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Vulnerabilities CVE-2026-74690

CVE-2026-74690

None
Open
TLP:CLEAR

s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

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Description

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.

Details

Confidence
90%
Published
Aug 22, 2026
Last Modified
Aug 22, 2026
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