CVE-2025-37884
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-37884
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37884.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-37884
- Downstream
- Related
- Published
- 2025-05-09T07:16:09Z
- Modified
- 2025-08-09T20:01:26Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix deadlock between rcutaskstrace and event_mutex.
Fix the following deadlock: CPU A freeevent() perfkprobedestroy() mutexlock(&eventmutex) perftraceeventunreg() synchronizercutaskstrace()
There are several paths where freeevent() grabs eventmutex and calls syncrcutaskstrace. Above is one such case.
CPU B bpfprogtestrunsyscall() rcureadlocktrace() bpfprogrunpinoncpu() bpfprogload() bpftracingfuncproto() tracesetclrevent() mutexlock(&eventmutex)
Delegate tracesetclr_event() to workqueue to avoid such lock dependency.
- References
-
- https://git.kernel.org/stable/c/255cbc9db7067a83713fd2f4b31034ddd266549a
- https://git.kernel.org/stable/c/45286680b385f2592db3003554872388dee66d68
- https://git.kernel.org/stable/c/4580f4e0ebdf8dc8d506ae926b88510395a0c1d1
- https://git.kernel.org/stable/c/b5a528a34e1f613565115a7a6016862ccbfcb9ac
- https://git.kernel.org/stable/c/c5c833f6375f8ecf9254dd27946c927c7d645421