In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic kvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and aen_host_forward() index the GAIT by manually multiplying the index with sizeof(struct zpci_gaite). Since aift->gait is already a struct zpci_gaite pointer, this double-scales the offset, accessing element aisb*16 instead of aisb. This causes out-of-bounds accesses when aisb >= 32 (with ZPCI_NR_DEVICES=512) Fix by removing the erroneous sizeof multiplication.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0 Patch
- https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a Patch
- https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828 Patch
- https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2 Patch
- https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8 Patch
- https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · linuxNVD modified 2026-10-16 16:18
Affected (CPE criteria) 4
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
References 6
- https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0 Patch
- https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a Patch
- https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828 Patch
- https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2 Patch
- https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8 Patch
- https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48 Patch