CVE-2025-39829

In the Linux kernel, the following vulnerability has been resolved: trace/fgraph: Fix the warning caused by missing unregister notifier This warning was triggered during testing on v6.16: notifier callback ftrace_suspend_notifier_call already registered WARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0 ... Call Trace: <TASK> blocking_notifier_chain_register+0x34/0x60 register_ftrace_graph+0x330/0x410 ftrace_profile_write+0x1e9/0x340 vfs_write+0xf8/0x420 ? filp_flush+0x8a/0xa0 ? filp_close+0x1f/0x30 ? do_dup2+0xaf/0x160 ksys_write+0x65/0xe0 do_syscall_64+0xa4/0x260 entry_SYSCALL_64_after_hwframe+0x77/0x7f When writing to the function_profile_enabled interface, the notifier was not unregistered after start_graph_tracing failed, causing a warning the next time function_profile_enabled was written. Fixed by adding unregister_pm_notifier in the exception path.

The following products are affected by CVE-2025-39829 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-39829.

URL	Resource
https://git.kernel.org/stable/c/000aa47a51233fd38a629b029478e0278e1e9fbe
https://git.kernel.org/stable/c/2a2deb9f8df70480050351ac27041f19bb9e718b
https://git.kernel.org/stable/c/edede7a6dcd7435395cf757d053974aaab6ab1c2
https://lore.kernel.org/linux-cve-announce/2025091617-CVE-2025-39829-2ef1@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2025-39829
https://www.cve.org/CVERecord?id=CVE-2025-39829