CVEvulnerability
CVE-2026-43210
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-06
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Affected configurations
• linux linux kernel (>= 6.12 < 6.12.75)
• linux linux kernel (>= 6.13 < 6.18.16)
• linux linux kernel (>= 6.19 < 6.19.6)
References
- https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac Patch
- https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a Patch
- https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e Patch
- https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982 Patch