{"id":"CVE-2026-89799","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable preemption in bpf_get_stackid\n\nThe get_perf_callchain call needs disabled preemption plus we need\nit disabled as long as we access its returned trace entri…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable preemption in bpf_get_stackid\n\nThe get_perf_callchain call needs disabled preemption plus we need\nit disabled as long as we access its returned trace entri…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= d5a3b1f691865be576c2bffa708549b8cdccda19 < ccf481d73bce6e851cec364fe831c86fe66877cf","Linux >= d5a3b1f691865be576c2bffa708549b8cdccda19 < c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf","Linux >= d5a3b1f691865be576c2bffa708549b8cdccda19 < 15f1bd8574662f1b7b26aaa2e23ebf4066f0117d","Linux 4.6"],"published":"2026-09-16","updated":"2026-09-21","sourceUpdated":"2026-09-21T14:17:27.000","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89799","references":[{"url":"https://git.kernel.org/stable/c/15f1bd8574662f1b7b26aaa2e23ebf4066f0117d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/18c71e4b65ee60b8611fc071bdd7159f10185117","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ccf481d73bce6e851cec364fe831c86fe66877cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00161,"epssPercentile":0.05761,"ingestedAt":"2026-09-16T10:53:54.009Z","slug":"CVE-2026-89799","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable preemption in bpf_get_stackid\n\nThe get_perf_callchain call needs disabled preemption plus we need\nit disabled as long as we access its returned trace entries buffer.\n\nNote the bpf_get_stackid_pe function is executed already with\npreemption disabled.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205247,"id":"CVE-2026-89799","ts":1789570705916,"field":"cvss","old":null,"new":"7.8"},{"seq":205246,"id":"CVE-2026-89799","ts":1789570705916,"field":"severity","old":"none","new":"high"}]}