CVE-2026-93205iommu/arm-smmu-v3: Manage teardown with devm
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 36 days later
· 36 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 041b5e2a2a31c62049af30c5716099eebab86cb8
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 64b1a9384db9cabf1bde378a2d5c1923fd67ea0d
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 981686f4137760a16a03c5193f11d85133533f93
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 2235eafda9b3df9295efd0593cd4a8977440c3f6
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 78fd5a2d65f3546cb4285f8e52f445baecbd00e0
- affected 395ad89d11fd93f79a6b942e91fc409807a63c4b – < 2bd22a0d40503a65d243b011de146603c8ce1cbc
- affected 5.14
- unaffected < 5.14
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/041b5e2a2a31c62049af30c5716099eebab86cb8 (opens in a new tab)
- https://git.kernel.org/stable/c/64b1a9384db9cabf1bde378a2d5c1923fd67ea0d (opens in a new tab)
- https://git.kernel.org/stable/c/981686f4137760a16a03c5193f11d85133533f93 (opens in a new tab)
- https://git.kernel.org/stable/c/2235eafda9b3df9295efd0593cd4a8977440c3f6 (opens in a new tab)
- https://git.kernel.org/stable/c/78fd5a2d65f3546cb4285f8e52f445baecbd00e0 (opens in a new tab)
- https://git.kernel.org/stable/c/2bd22a0d40503a65d243b011de146603c8ce1cbc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-85934 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93205)Record last updated .