{"id":"CVE-2026-93111","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark tracing_multi trampolines as ftrace managed\n\nSince tracing_multi link does not set ftrace_managed, it would fail to\nrelease the tracing_multi link when attach…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark tracing_multi trampolines as ftrace managed\n\nSince tracing_multi link does not set ftrace_managed, it would fail to\nrelease the tracing_multi link when attach…","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 >= aef4dfa790b22d8052cfb78044eadbe03c876c39 < 280145253fd38fa975cc04963ddaf74c7f415011","Linux >= aef4dfa790b22d8052cfb78044eadbe03c876c39 < 30bdd6d1384d894931f113eb595636092d8e650c","Linux 7.2"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:18:20.993","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93111","references":[{"url":"https://git.kernel.org/stable/c/280145253fd38fa975cc04963ddaf74c7f415011","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/30bdd6d1384d894931f113eb595636092d8e650c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0012,"epssPercentile":0.02117,"ingestedAt":"2026-09-17T16:21:47.754Z","slug":"CVE-2026-93111","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark tracing_multi trampolines as ftrace managed\n\nSince tracing_multi link does not set ftrace_managed, it would fail to\nrelease the tracing_multi link when attaching tracing_multi link and\nthen attaching fentry link.\n\n[    3.714215] WARNING: kernel/bpf/trampoline.c:1727 at bpf_trampoline_multi_detach+0x20b/0x240, CPU#1: test_progs/97\n...\n[    3.733170]  bpf_tracing_multi_link_release+0x14/0x30\n[    3.733890]  bpf_link_free+0x58/0x130\n[    3.734414]  bpf_link_release+0x23/0x30\n\nFix it by setting 'ftrace_managed = true' in register_fentry_multi().\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":207375,"id":"CVE-2026-93111","ts":1789757341669,"field":"cvss","old":null,"new":"7.8"},{"seq":207374,"id":"CVE-2026-93111","ts":1789757341669,"field":"severity","old":"none","new":"high"}]}