MinorCritical vulnerability

CVE-2026-89799 (CVSS 7.8)

NVD · officialPublished Sep 16, 2026Risk 23/100EPSS 0.2%

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.

Technical details

CVSS

7.8

AV:LocalAC:LowPR:LowUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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