CVE-2025-39994 — Use After Free in Linux
Severity
7.8HIGHOSV
OSV5.5OSV3.2
No vectorEPSS
0.1%
top 74.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 15
Latest updateApr 13
Description
In the Linux kernel, the following vulnerability has been resolved:
media: tuner: xc5000: Fix use-after-free in xc5000_release
The original code uses cancel_delayed_work() in xc5000_release(), which
does not guarantee that the delayed work item timer_sleep has fully
completed if it was already running. This leads to use-after-free scenarios
where xc5000_release() may free the xc5000_priv while timer_sleep is still
active and attempts to dereference the xc5000_priv.
A typical race condition is…