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CVE-2026-93205

iommu/arm-smmu-v3: Manage teardown with devm

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

iommu/arm-smmu-v3: Manage teardown with devm

arm_smmu_device_remove() manually frees the IOPF queue, destroys the
vmid_map and disables the device, while the IRQs and queues are devm
managed. devm unwinds only after remove() returns, so the cleanup runs
in the wrong order. The IOPF queue is freed before the event-queue IRQ
whose handler uses it.

Manage all of it with devm so the unwind order is correct. Free the IOPF
queue and vmid_map via devm actions, and disable the device from one
registered after arm_smmu_device_reset().

This is also a prerequisite for fixing a Tegra241 CMDQV CMD_SYNC
use-after-free in the subsequent patch.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 395ad89d11fd93f79a6b942e91fc409807a63c4b
Version < 981686f4137760a16a03c5193f11d85133533f93
Status affected
Version 395ad89d11fd93f79a6b942e91fc409807a63c4b
Version < 2235eafda9b3df9295efd0593cd4a8977440c3f6
Status affected
Version 395ad89d11fd93f79a6b942e91fc409807a63c4b
Version < 78fd5a2d65f3546cb4285f8e52f445baecbd00e0
Status affected
Version 395ad89d11fd93f79a6b942e91fc409807a63c4b
Version < 2bd22a0d40503a65d243b011de146603c8ce1cbc
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.14
Status affected
Version 0
Version < 5.14
Status unaffected
Version <= 6.12.*
Version 6.12.109
Status unaffected
Version <= 6.18.*
Version 6.18.50
Status unaffected
Version <= 7.2.*
Version 7.2.4
Status unaffected
Version <= *
Version 7.3-rc1
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 0.17% 0.054
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/981686f4137760a16a03c5193f11d85133533f93
https://git.kernel.org/stable/c/2235eafda9b3df9295efd0593cd4a8977440c3f6
https://git.kernel.org/stable/c/78fd5a2d65f3546cb4285f8e52f445baecbd00e0
https://git.kernel.org/stable/c/2bd22a0d40503a65d243b011de146603c8ce1cbc