CVE-2022-50482
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedOct 4, 2025
First seenOct 4, 2025
Weakness typeCWE-908CWE-908
How to fix
Update
- linux linux_kernel4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76, 6.0.6 or later
Patches
- git.kernel.org/stable/c/0365d6af75f9f2696e94a0fef24a2c8464c037c8
- git.kernel.org/stable/c/5cecfe151874b835331efe086bbdcaeaf64f6b90
- git.kernel.org/stable/c/620bf9f981365c18cc2766c53d92bf8131c63f32
- git.kernel.org/stable/c/724483b585a1b1e063d42ac5aa835707ff2ec165
- git.kernel.org/stable/c/749bea542b67513e99240dc58bbfc099e842d508
- git.kernel.org/stable/c/c4ad3ae4c6be9d8b0701761c839771116bca6ea3
- git.kernel.org/stable/c/d74196bb278b8f8af88e16bd595997dfa3d6fdb0
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.2 ≤ v < 4.14.298, 4.15 ≤ v < 4.19.264, 4.20 ≤ v < 5.4.221, 5.5 ≤ v < 5.10.152, 5.11 ≤ v < 5.15.76, 5.16 ≤ v < 6.0.6, 6.1 | 4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76, 6.0.6 |
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