8.2

CVE-2026-74355

iommu/vt-d: Fix RB-tree corruption in probe error path

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

iommu/vt-d: Fix RB-tree corruption in probe error path

The info->node RB-tree member is zero-initialized via kzalloc. If
a device does not support ATS, the device_rbtree_insert() call is
skipped. If a subsequent probe step fails, the error path jumps to
device_rbtree_remove(), which misinterprets the zeroed node as
a tree root and corrupts the device RB-tree.

Fix this by explicitly initializing the RB-node as empty using
RB_CLEAR_NODE() during initialization and guarding the removal with
RB_EMPTY_NODE().
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 4f1492efb495bcef34c9ee8a94af81e6cea5abf4
Version < f5102e0fc3c6dc8685549891a96e4589fdb3e211
Status affected
Version 4f1492efb495bcef34c9ee8a94af81e6cea5abf4
Version < d16923a45d4d08367650fdc3451c89299ab6ac5a
Status affected
Version 4f1492efb495bcef34c9ee8a94af81e6cea5abf4
Version < 43bd9e6d5513cb1edbafdeef146a1edc3aaced56
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.15
Status affected
Version 0
Version < 6.15
Status unaffected
Version <= 6.18.*
Version 6.18.40
Status unaffected
Version <= 7.1.*
Version 7.1.5
Status unaffected
Version <= *
Version 7.2
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 0.13% 0.032
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 8.2 1.5 6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/f5102e0fc3c6dc8685549891a96e4589fdb3e211
https://git.kernel.org/stable/c/d16923a45d4d08367650fdc3451c89299ab6ac5a
https://git.kernel.org/stable/c/43bd9e6d5513cb1edbafdeef146a1edc3aaced56