CVE-2026-89452iommu/msm: Unwind probe state on registration failure
- 8.4HighCVSS base score
- 0.19%Exploitation in 30 daysEPSS · top 92% 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/msm: Unwind probe state on registration failure msm_iommu_probe() adds its devm-managed IOMMU object to qcom_iommu_devices before adding the IOMMU sysfs device and registering it with the IOMMU core. If iommu_device_sysfs_add() fails, probe returns with the object still on qcom_iommu_devices. The driver core then releases the devm allocation, leaving a dangling list entry that later list walks may dereference. If iommu_device_register() fails, the same dangling list entry remains and the sysfs device is left registered as well. Unwind the sysfs device and global list entry in reverse setup order on the corresponding failure paths.
Timeline
ID reserved
By Linux
Published
- 49 days later
· 49 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.19% · top 92% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Affected products
- affected 42df43b36163ed7d0ab13992e411093252903273 – < 51424c14dbdadc8c2ad4abf842265a50f69d78aa
- affected 42df43b36163ed7d0ab13992e411093252903273 – < 6a1ae472113762f794682229a0f233f1ee0f69a4
- affected 42df43b36163ed7d0ab13992e411093252903273 – < 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02
- affected 42df43b36163ed7d0ab13992e411093252903273 – < f532401be9312ecd166f616bb74a65b0b4c150fa
- affected 42df43b36163ed7d0ab13992e411093252903273 – < 7f7074a886c4a93e3d12076ce60a510a1ebe400c
- affected 42df43b36163ed7d0ab13992e411093252903273 – < 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4
- affected 4.11
- unaffected < 4.11
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 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/51424c14dbdadc8c2ad4abf842265a50f69d78aa (opens in a new tab)
- https://git.kernel.org/stable/c/6a1ae472113762f794682229a0f233f1ee0f69a4 (opens in a new tab)
- https://git.kernel.org/stable/c/51e37f9179387b6e3fa64a3d3b4fece1a38b3a02 (opens in a new tab)
- https://git.kernel.org/stable/c/f532401be9312ecd166f616bb74a65b0b4c150fa (opens in a new tab)
- https://git.kernel.org/stable/c/7f7074a886c4a93e3d12076ce60a510a1ebe400c (opens in a new tab)
- https://git.kernel.org/stable/c/535a200220ca2c83bc8bf54bd2cbe045d6ee70c4 (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-2026-76358 (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-2026-89452)Record last updated .