CVE-2026-43210

MEDIUM EPSS 2.8%
Published May 6, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: ring-buffer: Fix to check event length before using Check the event length before adding it for accessing next index in rb_read_data_buffer(). Since this function is used for validating possibly broken ring buffers, the length of the event could be broken. In that case, the new event (e + len) can point a wrong address. To avoid invalid memory access at boot, check whether the length of each event is in the possible range before using it.

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
2.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.12  –  <6.12.75
linuxlinux_kernel*≥6.13  –  <6.18.16
linuxlinux_kernel*≥6.19  –  <6.19.6

References 4

  • git.kernel.org https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982
    Patch