CVE-2026-93111
- Source
- https://cve.org/CVERecord?id=CVE-2026-93111
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93111.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-93111
- Downstream
- Published
- 2026-09-17T16:11:20Z
- Modified
- 2026-09-19T03:47:31Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- bpf: Mark tracing_multi trampolines as ftrace managed
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Mark tracing_multi trampolines as ftrace managed
Since tracing_multi link does not set ftrace_managed, it would fail to release the tracing_multi link when attaching tracing_multi link and then attaching fentry link.
[ 3.714215] WARNING: kernel/bpf/trampoline.c:1727 at bpf_trampoline_multi_detach+0x20b/0x240, CPU#1: test_progs/97 ... [ 3.733170] bpf_tracing_multi_link_release+0x14/0x30 [ 3.733890] bpf_link_free+0x58/0x130 [ 3.734414] bpf_link_release+0x23/0x30
Fix it by setting 'ftrace_managed = true' in register_fentry_multi().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93111.json" }- References
-
- https://git.kernel.org/stable/c/280145253fd38fa975cc04963ddaf74c7f415011
- https://git.kernel.org/stable/c/30bdd6d1384d894931f113eb595636092d8e650c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93111.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-93111
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git