CVE-2024-50112

HIGH EPSS 19.4%
Published Nov 5, 20241y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Nov 5, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: x86/lam: Disable ADDRESS_MASKING in most cases Linear Address Masking (LAM) has a weakness related to transient execution as described in the SLAM paper[1]. Unless Linear Address Space Separation (LASS) is enabled this weakness may be exploitable. Until kernel adds support for LASS[2], only allow LAM for COMPILE_TEST, or when speculation mitigations have been disabled at compile time, otherwise keep LAM disabled. There are no processors in market that support LAM yet, so currently nobody is affected by this issue. [1] SLAM: https://download.vusec.net/papers/slam_sp24.pdf [2] LASS: https://lore.kernel.org/lkml/20230609183632.48706-1-alexander.shishkin@linux.intel.com/ [ dhansen: update SPECULATION_MITIGATIONS -> CPU_MITIGATIONS ]

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
19.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel* <6.6.59
linuxlinux_kernel*≥6.7  –  <6.11.6
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/3267cb6d3a174ff83d6287dcd5b0047bbd912452
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/60a5ba560f296ad8da153f6ad3f70030bfa3958f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/690599066488d16db96ac0d6340f9372fc56f337
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3267cb6d3a174ff83d6287dcd5b0047bbd912452
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/60a5ba560f296ad8da153f6ad3f70030bfa3958f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/690599066488d16db96ac0d6340f9372fc56f337
    Patch