CVE-2026-80687: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: iommufd/viommu: Release the igroup lock on the vdevice_size error path iommufd_vdevice_alloc_ioctl() takes idev->igroup->lock, then validates the driver's vdevice_size against the core structure size with a WARN_ON_ONCE. On failure that guard jumps to out_put_idev, below out_unlock_igroup, so it skips the mutex_unlock(), leaving the igroup lock held and deadlocking the next vDEVICE operation on that group. Jump to out_unlock_igroup instead.

Засегнати продукти

• Linux Linux: ed42eee797ff3dc889ade63c1dd7c4f430699e23 преди 294b464b2be7e57872864cb6936e1d9c7294f89d; ed42eee797ff3dc889ade63c1dd7c4f430699e23 преди ca9e49e1c8931a4e6e743a1f1d2e7f977f774b86; ed42eee797ff3dc889ade63c1dd7c4f430699e23 преди 339bd11591593ab7ce88136ab7fd01ef3813b724
• Linux Linux: 6.17; преди 6.17; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80687
• https://nvd.nist.gov/vuln/detail/CVE-2026-80687
• https://git.kernel.org/stable/c/294b464b2be7e57872864cb6936e1d9c7294f89d
• https://git.kernel.org/stable/c/ca9e49e1c8931a4e6e743a1f1d2e7f977f774b86
• https://git.kernel.org/stable/c/339bd11591593ab7ce88136ab7fd01ef3813b724