CVE-2024-57876

HIGH EPSS 5.4%
Published Jan 11, 20251y ago · Modified Jun 17, 20262w ago
7.0 CVSS 3.1
High
Find Similar
Published Jan 11, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/dp_mst: Fix resetting msg rx state after topology removal If the MST topology is removed during the reception of an MST down reply or MST up request sideband message, the drm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset from one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with the reading/parsing of the message from another thread via drm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is possible since the reader/parser doesn't hold any lock while accessing the reception state. This in turn can lead to a memory corruption in the reader/parser as described by commit bd2fccac61b4 ("drm/dp_mst: Fix MST sideband message body length check"). Fix the above by resetting the message reception state if needed before reading/parsing a message. Another solution would be to hold the drm_dp_mst_topology_mgr::lock for the whole duration of the message reception/parsing in drm_dp_mst_handle_down_rep() and drm_dp_mst_handle_up_req(), however this would require a bigger change. Since the fix is also needed for stable, opting for the simpler solution in this patch.

CVSS Details

Base Score
7.0
Exploitability
1.0
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
5.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-362
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥5.10.173  –  <5.11
linuxlinux_kernel*≥5.15.100  –  <5.16
linuxlinux_kernel*≥6.1.18  –  <6.1.120
linuxlinux_kernel*≥6.2.5  –  <6.6.66
linuxlinux_kernel*≥6.7  –  <6.12.5
linuxlinux_kernel6.13any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/94b33b2d7640e807869451384eb88321dd0ffbd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/be826b4451fd187a7c0b04be4f8243d5df6e0450
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d834d20d2e86c52ed5cab41763fa61e6071680ef
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/94b33b2d7640e807869451384eb88321dd0ffbd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/be826b4451fd187a7c0b04be4f8243d5df6e0450
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d834d20d2e86c52ed5cab41763fa61e6071680ef
    Patch