CVE-2025-37884 — Improper Locking in Linux
Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.0%
top 85.56%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 9
Latest updateMar 25
Description
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…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages10 packages
Also affects: Debian Linux 11.0