CVE-2026-80547

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Implement a crw lock Unlike the channel_program struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a lock to manage the list of those payloads, to ensure they are read cohesively.

CVSS 3.1

8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

Published

2026-08-26

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61
• https://git.kernel.org/stable/c/16b0798024c0e9117e395829ddbbe70981c79d9c
• https://git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209
• https://git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b
• https://git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558

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