CVE-2022-50482

MEDIUM EPSS 4.3%
Published Oct 4, 20258mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-908

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥4.2  –  <4.14.298
linuxlinux_kernel*≥4.15  –  <4.19.264
linuxlinux_kernel*≥4.20  –  <5.4.221
linuxlinux_kernel*≥5.5  –  <5.10.152
linuxlinux_kernel*≥5.11  –  <5.15.76
linuxlinux_kernel*≥5.16  –  <6.0.6
linuxlinux_kernel6.1any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/0365d6af75f9f2696e94a0fef24a2c8464c037c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5cecfe151874b835331efe086bbdcaeaf64f6b90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/620bf9f981365c18cc2766c53d92bf8131c63f32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/724483b585a1b1e063d42ac5aa835707ff2ec165
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/749bea542b67513e99240dc58bbfc099e842d508
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ad3ae4c6be9d8b0701761c839771116bca6ea3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d74196bb278b8f8af88e16bd595997dfa3d6fdb0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0365d6af75f9f2696e94a0fef24a2c8464c037c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5cecfe151874b835331efe086bbdcaeaf64f6b90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/620bf9f981365c18cc2766c53d92bf8131c63f32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/724483b585a1b1e063d42ac5aa835707ff2ec165
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/749bea542b67513e99240dc58bbfc099e842d508
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ad3ae4c6be9d8b0701761c839771116bca6ea3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d74196bb278b8f8af88e16bd595997dfa3d6fdb0
    Patch