CVE-2026-89799
bpf: Disable preemption in bpf_get_stackid
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
d5a3b1f691865be576c2bffa708549b8cdccda19 < 01fc93f670b3e759413a4d574c18ccfc636d2728 d5a3b1f691865be576c2bffa708549b8cdccda19 < e79a70c2e97ae36bbdd371f0ce88a525f7b49f01 d5a3b1f691865be576c2bffa708549b8cdccda19 < 18c71e4b65ee60b8611fc071bdd7159f10185117 d5a3b1f691865be576c2bffa708549b8cdccda19 < ccf481d73bce6e851cec364fe831c86fe66877cf d5a3b1f691865be576c2bffa708549b8cdccda19 < c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf d5a3b1f691865be576c2bffa708549b8cdccda19 < 15f1bd8574662f1b7b26aaa2e23ebf4066f0117d
Linux / Linux
4.6
References
git.kernel.org: https://git.kernel.org/stable/c/01fc93f670b3e759413a4d574c18ccfc636d2728 git.kernel.org: https://git.kernel.org/stable/c/e79a70c2e97ae36bbdd371f0ce88a525f7b49f01 git.kernel.org: https://git.kernel.org/stable/c/18c71e4b65ee60b8611fc071bdd7159f10185117 git.kernel.org: https://git.kernel.org/stable/c/ccf481d73bce6e851cec364fe831c86fe66877cf git.kernel.org: https://git.kernel.org/stable/c/c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf git.kernel.org: https://git.kernel.org/stable/c/15f1bd8574662f1b7b26aaa2e23ebf4066f0117d