CVE-2022-50482

iommu/vt-d: Clean up si_domain in the init_dmars() error path

State: Published
Severity: Not scored
Published: Oct 4, 2025
Updated: May 11, 2026
Reserved: Oct 4, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Clean up si_domain in the init_dmars() error path

A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 749bea542b67513e99240dc58bbfc099e842d508Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 5cecfe151874b835331efe086bbdcaeaf64f6b90Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 724483b585a1b1e063d42ac5aa835707ff2ec165Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before d74196bb278b8f8af88e16bd595997dfa3d6fdb0Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 0365d6af75f9f2696e94a0fef24a2c8464c037c8Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before c4ad3ae4c6be9d8b0701761c839771116bca6ea3Affected 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 620bf9f981365c18cc2766c53d92bf8131c63f32Affected
LinuxLinux	4.2Affected before 4.2Not affected 4.14.298 through 4.14.Not affected 4.19.264 through 4.19.Not affected 5.4.221 through 5.4.Not affected 5.10.152 through 5.10.Not affected 5.15.76 through 5.15.Not affected 6.0.6 through 6.0.Not affected 6.1 and laterNot affected

Product

Versions

LinuxLinux

86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 749bea542b67513e99240dc58bbfc099e842d508Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 5cecfe151874b835331efe086bbdcaeaf64f6b90Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 724483b585a1b1e063d42ac5aa835707ff2ec165Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before d74196bb278b8f8af88e16bd595997dfa3d6fdb0Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 0365d6af75f9f2696e94a0fef24a2c8464c037c8Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before c4ad3ae4c6be9d8b0701761c839771116bca6ea3Affected
86080ccc223aabf8d0b85a504f4f06aa88e82fb3 to before 620bf9f981365c18cc2766c53d92bf8131c63f32Affected

LinuxLinux

4.2Affected
before 4.2Not affected
4.14.298 through 4.14.*Not affected
4.19.264 through 4.19.*Not affected
5.4.221 through 5.4.*Not affected
5.10.152 through 5.10.*Not affected
5.15.76 through 5.15.*Not affected
6.0.6 through 6.0.*Not affected
6.1 and laterNot affected

References

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