In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix deadlock between rcu_tasks_trace and event_mutex.
Fix the following deadlock:
CPU A
_free_event()
perf_kprobe_destroy()
mutex_lock(&event_mutex)
perf_trace_event_unreg()
synchronize_rcu_tasks_trace()
There are several paths where _free_event() grabs event_mutex
and calls sync_rcu_tasks_trace. Above is one such case.
CPU B
bpf_prog_test_run_syscall()
rcu_read_lock_trace()
bpf_prog_run_pin_on_cpu()
bpf_prog_load()
bpf_tracing_func_proto()
trace_set_clr_event()
mutex_lock(&event_mutex)
Delegate trace_set_clr_event() to workqueue to avoid
such lock dependency.
CVSS
No CVSS.
References
Configurations
No configuration.
History
12 May 2025, 17:32
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
09 May 2025, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-05-09 07:16
Updated : 2025-05-12 17:32
NVD link : CVE-2025-37884
Mitre link : CVE-2025-37884
CVE.ORG link : CVE-2025-37884
JSON object : View
Products Affected
No product.
CWE
No CWE.