CVE-2025-39736 mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid deadlock by moving prwarn outside kmemleaklock When netpoll is enabled, calling prwarnonce while holding kmemleaklock in mempoolalloc can cause a deadlock due to lock inversion with the netconsole subsystem. Th...

CVE-2025-39736

CVE-2025-39736 : In the Linux kernel, a deadlock can occur in kmemleak when netpoll is enabled because pr_warn_once() may be called while holding kmemleak_lock, potentially triggering netpoll and reacquiring the lock. The fix moves the pr_warn_once() call out of the locked region by setting a fla...