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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusReceived → PublishedNVD modified 2026-10-21 12:52
- References+1 references (now 5)NVD modified 2026-10-21 13:21
- StatusPublished → ReceivedNVD modified 2026-10-21 13:21
- StatusReceived → PublishedNVD modified 2026-10-19 09:07
- First seenunscoredNVD modified 2026-10-19 10:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://git.kernel.org/stable/c/2235eafda9b3df9295efd0593cd4a8977440c3f6
- https://git.kernel.org/stable/c/2bd22a0d40503a65d243b011de146603c8ce1cbc
- https://git.kernel.org/stable/c/64b1a9384db9cabf1bde378a2d5c1923fd67ea0d
- https://git.kernel.org/stable/c/78fd5a2d65f3546cb4285f8e52f445baecbd00e0
- https://git.kernel.org/stable/c/981686f4137760a16a03c5193f11d85133533f93