CVE-2026-52968
KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 24, 2026 |
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Affected Versions
Linux / Linux
73f91b004321f2510fa79e66035dbbf1870fcf56 < 31a9d9f9942885aae356a1a57c79e82c5b5b0828 73f91b004321f2510fa79e66035dbbf1870fcf56 < a99a25db131ece5e6c0f7632da606de631efe4f2 73f91b004321f2510fa79e66035dbbf1870fcf56 < 11b8ff5b930b351dd1f6f088dce0beb027ac92d0 73f91b004321f2510fa79e66035dbbf1870fcf56 < b22a2da8792a7bfe743c1a922e77fa499ddedbe8 73f91b004321f2510fa79e66035dbbf1870fcf56 < e7216651b94e92e5433fb2f54b77864642b4ea48 73f91b004321f2510fa79e66035dbbf1870fcf56 < 16d990a15491cf76cd6eef0846e1b4100e63261a
Linux / Linux
6.0
References
git.kernel.org: https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828 git.kernel.org: https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2 git.kernel.org: https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0 git.kernel.org: https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8 git.kernel.org: https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48 git.kernel.org: https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a