CVE-2026-64162

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()<br /> <br /> In idpf_ptp_init(), read_dev_clk_lock is initialized after<br /> ptp_schedule_worker() had already been called (and after<br /> idpf_ptp_settime64() could reach the lock). The PTP aux worker<br /> fires immediately upon scheduling and can call into<br /> idpf_ptp_read_src_clk_reg_direct(), which takes<br /> spin_lock(&amp;ptp-&gt;read_dev_clk_lock) on an uninitialized lock, triggering<br /> the lockdep "non-static key" warning:<br /> <br /> [12973.796587] idpf 0000:83:00.0: Device HW Reset initiated<br /> [12974.094507] INFO: trying to register non-static key.<br /> ...<br /> [12974.097208] Call Trace:<br /> [12974.097213] <br /> [12974.097218] dump_stack_lvl+0x93/0xe0<br /> [12974.097234] register_lock_class+0x4c4/0x4e0<br /> [12974.097249] ? __lock_acquire+0x427/0x2290<br /> [12974.097259] __lock_acquire+0x98/0x2290<br /> [12974.097272] lock_acquire+0xc6/0x310<br /> [12974.097281] ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]<br /> [12974.097311] ? lockdep_hardirqs_on_prepare+0xde/0x190<br /> [12974.097318] ? finish_task_switch.isra.0+0xd2/0x350<br /> [12974.097330] ? __pfx_ptp_aux_kworker+0x10/0x10 [ptp]<br /> [12974.097343] _raw_spin_lock+0x30/0x40<br /> [12974.097353] ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]<br /> [12974.097373] idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf]<br /> [12974.097391] ? kthread_worker_fn+0x88/0x3d0<br /> [12974.097404] ? kthread_worker_fn+0x4e/0x3d0<br /> [12974.097411] idpf_ptp_update_cached_phctime+0x26/0x120 [idpf]<br /> [12974.097428] ? _raw_spin_unlock_irq+0x28/0x50<br /> [12974.097436] idpf_ptp_do_aux_work+0x15/0x20 [idpf]<br /> [12974.097454] ptp_aux_kworker+0x20/0x40 [ptp]<br /> [12974.097464] kthread_worker_fn+0xd5/0x3d0<br /> [12974.097474] ? __pfx_kthread_worker_fn+0x10/0x10<br /> [12974.097482] kthread+0xf4/0x130<br /> [12974.097489] ? __pfx_kthread+0x10/0x10<br /> [12974.097498] ret_from_fork+0x32c/0x410<br /> [12974.097512] ? __pfx_kthread+0x10/0x10<br /> [12974.097519] ret_from_fork_asm+0x1a/0x30<br /> [12974.097540] <br /> <br /> Move the call to spin_lock_init() up a bit to make sure read_dev_clk_lock<br /> is not touched before it&amp;#39;s been initialized.