High 7.8Published Apr 3, 2026

CVE-2026-23429iommu/sva: Fix crash in iommu_sva_unbind_device()

Updated under an hour ago (Oct 27, 2026, 8:50 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Fix crash in iommu_sva_unbind_device() domain->mm->iommu_mm can be freed by iommu_domain_free(): iommu_domain_free() mmdrop() __mmdrop() mm_pasid_drop() After iommu_domain_free() returns, accessing domain->mm->iommu_mm may dereference a freed mm structure, leading to a crash. Fix this by moving the code that accesses domain->mm->iommu_mm to before the call to iommu_domain_free().

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9f0a7ab700f8620e433b05c57fbd26c92ea186d9 before 58abeb7b9562f25bdfa2f5ae5ce803eb02e74433; from e37d5a2d60a338c5917c45296bac65da1382eda5 before f5daaa2c959d9f894fb5b1ab76da8612dd220a0d; from e37d5a2d60a338c5917c45296bac65da1382eda5 before 06e14c36e20b48171df13d51b89fe67c594ed07a; from 6.18.7 before 6.18.20	CNA record
linux linux_kernel linux:linux_kernel	from 6.18.7 before 6.18.20; from 6.19.1 before 6.19.10; 6.19; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/58abeb7b9562f25bdfa2f5ae5ce803eb02e74433	patch
https://git.kernel.org/stable/c/f5daaa2c959d9f894fb5b1ab76da8612dd220a0d	patch
https://git.kernel.org/stable/c/06e14c36e20b48171df13d51b89fe67c594ed07a	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.