PT-2026-30124 · Linux · Linux

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-23429

NVD

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().

Related Identifiers

CVE-2026-23429

Affected Products

Linux

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-23429 · Security Note
• https://git.kernel.org/stable/c/06e14c36e20b48171df13d51b89fe67c594ed07a · Note
• https://git.kernel.org/stable/c/f5daaa2c959d9f894fb5b1ab76da8612dd220a0d · Note
• https://git.kernel.org/stable/c/58abeb7b9562f25bdfa2f5ae5ce803eb02e74433 · Note