CVEvulnerability
CVE-2026-89799
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-16
- Last modified
- 2026-10-21
- 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:
bpf: Disable preemption in bpf_get_stackid
The get_perf_callchain call needs disabled preemption plus we need
it disabled as long as we access its returned trace entries buffer.
Note the bpf_get_stackid_pe function is executed already with
preemption disabled.
References
- https://git.kernel.org/stable/c/15f1bd8574662f1b7b26aaa2e23ebf4066f0117d git.kernel.org
- https://git.kernel.org/stable/c/18c71e4b65ee60b8611fc071bdd7159f10185117 git.kernel.org
- https://git.kernel.org/stable/c/c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf git.kernel.org
- https://git.kernel.org/stable/c/ccf481d73bce6e851cec364fe831c86fe66877cf git.kernel.org
- https://git.kernel.org/stable/c/e79a70c2e97ae36bbdd371f0ce88a525f7b49f01 git.kernel.org