CVE-2026-80547

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < 3c94d4179bcc19e01b28db634c07a58b28116209affected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < 0edd222730a9d7ec98368aaf1d40ee2d8d862e61affected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < a3d60ae24183eee352c8e87a0ff94c97cd87f156affected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < 49fa26b0df009dc1f420980bd71780e70615b83baffected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < 7902be374cbfc11c3435e1e87bf22195bf06a558affected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9affected
LinuxLinux3f02cb2fd9d2d9e8762102886e3e4b51285797ee < 16b0798024c0e9117e395829ddbbe70981c79d9caffected
LinuxLinux5.8affected
LinuxLinux0 < 5.8unaffected
LinuxLinux5.15.218 <= 5.15.*unaffected
LinuxLinux6.1.185 <= 6.1.*unaffected
LinuxLinux6.6.154 <= 6.6.*unaffected
LinuxLinux6.12.105 <= 6.12.*unaffected
LinuxLinux6.18.46 <= 6.18.*unaffected
LinuxLinux7.1.10 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References