CVE-2026-72290

Summary

In the Linux kernel, the following vulnerability has been resolved:

KVM: s390: pci: Fix GISC refcount leak on AIF enable failure

kvm_s390_gisc_register() registers the guest ISC before pinning the guest interrupt forwarding pages and allocating the AISB bit. If any of the later setup steps fails, the function unwinds the pinned pages and other local state, but does not unregister the GISC reference. Add the missing kvm_s390_gisc_unregister() to the error unwind path.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 3882224b0e714f34de91e5f28307c5d3fccfe8f8affected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 6e69317cd44a2f21f8f7a9d93eb3220e868adfa8affected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 6cd6e1c978784eec9032e2fe94a53e62b674fe3eaffected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 5fb75c5272950b3ebe8bdee7abfdafd44f38313baffected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < adce12bb0e0dc82d1d6f0821c9faee3145e62a6faffected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 7b69729046a4c58f4cb457184e5ac4aaa179bff4affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References