CVEvulnerability
CVE-2026-89501
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-11
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Hold cpu_buffer::lock when resizing a subbuf
Because, ring_buffer_subbuf_order_set() can clear cpu_buffer->free_page,
hold cpu_buffer->lock to prevent races with
ring_buffer_alloc_read_page() and ring_buffer_free_read_page().
References
- https://git.kernel.org/stable/c/24974bd0da1b47fd56c975533ead50abf754e74d git.kernel.org
- https://git.kernel.org/stable/c/6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2 git.kernel.org
- https://git.kernel.org/stable/c/8a496aaa3da6e8d545896c2370c7e617cc931ae2 git.kernel.org
- https://git.kernel.org/stable/c/bf242baf58de03467f226c8e29554c9495dca7fc git.kernel.org