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CVE-2026-52968

KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < 31a9d9f9942885aae356a1a57c79e82c5b5b0828
Status affected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < a99a25db131ece5e6c0f7632da606de631efe4f2
Status affected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < 11b8ff5b930b351dd1f6f088dce0beb027ac92d0
Status affected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < b22a2da8792a7bfe743c1a922e77fa499ddedbe8
Status affected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < e7216651b94e92e5433fb2f54b77864642b4ea48
Status affected
Version 73f91b004321f2510fa79e66035dbbf1870fcf56
Version < 16d990a15491cf76cd6eef0846e1b4100e63261a
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.0
Status affected
Version 0
Version < 6.0
Status unaffected
Version <= 6.1.*
Version 6.1.175
Status unaffected
Version <= 6.6.*
Version 6.6.141
Status unaffected
Version <= 6.12.*
Version 6.12.91
Status unaffected
Version <= 6.18.*
Version 6.18.33
Status unaffected
Version <= 7.0.*
Version 7.0.10
Status unaffected
Version <= *
Version 7.1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.078
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828
https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2
https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0
https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8
https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48
https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a