CVE-2025-38539

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Source
https://cve.org/CVERecord?id=CVE-2025-38539
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38539.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38539
Downstream
Related
Published
2025-08-16T11:12:31.678Z
Modified
2026-03-12T02:17:29.304797Z
Summary
tracing: Add down_write(trace_event_sem) when adding trace event
Details

In the Linux kernel, the following vulnerability has been resolved:

tracing: Add downwrite(traceevent_sem) when adding trace event

When a module is loaded, it adds trace events defined by the module. It may also need to modify the modules trace printk formats to replace enum names with their values.

If two modules are loaded at the same time, the adding of the event to the ftrace_events list can corrupt the walking of the list in the code that is modifying the printk format strings and crash the kernel.

The addition of the event should take the traceeventsem for write while it adds the new event.

Also add a lockdepassertheld() on that semaphore in _traceaddeventdirs() as it iterates the list.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38539.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
110bf2b764eb6026b868d84499263cb24b1bcc8d
Fixed
e70f5ee4c8824736332351b703c46f9469ed7f6c
Fixed
db45632479ceecb669612ed8dbce927e3c6279fc
Fixed
ca60064ea03f14e06c763de018403cb56ba3207d
Fixed
7803b28c9aa8d8bd4e19ebcf5f0db9612b0f333b
Fixed
6bc94f20a4c304997288f9a45278c9d0c06987d3
Fixed
33e20747b47ddc03569b6bc27a2d6894c1428182
Fixed
70fecd519caad0c1741c3379d5348c9000a5b29d
Fixed
b5e8acc14dcb314a9b61ff19dcd9fdd0d88f70df

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38539.json"