CVE-2026-89799bpf: Disable preemption in bpf_get_stackid
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from d5a3b1f691865be576c2bffa708549b8cdccda19 before 18c71e4b65ee60b8611fc071bdd7159f10185117; from d5a3b1f691865be576c2bffa708549b8cdccda19 before ccf481d73bce6e851cec364fe831c86fe66877cf; from d5a3b1f691865be576c2bffa708549b8cdccda19 before c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf; from d5a3b1f691865be576c2bffa708549b8cdccda19 before 15f1bd8574662f1b7b26aaa2e23ebf4066f0117d | CNA record |
References
- https://git.kernel.org/stable/c/18c71e4b65ee60b8611fc071bdd7159f10185117
- https://git.kernel.org/stable/c/ccf481d73bce6e851cec364fe831c86fe66877cf
- https://git.kernel.org/stable/c/c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf
- https://git.kernel.org/stable/c/15f1bd8574662f1b7b26aaa2e23ebf4066f0117d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.