{"id":"DEBIAN-CVE-2026-64162","details":"In the Linux kernel, the following vulnerability has been resolved:  idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()  In idpf_ptp_init(), read_dev_clk_lock is initialized after ptp_schedule_worker() had already been called (and after idpf_ptp_settime64() could reach the lock). The PTP aux worker fires immediately upon scheduling and can call into idpf_ptp_read_src_clk_reg_direct(), which takes spin_lock(&ptp-\u003eread_dev_clk_lock) on an uninitialized lock, triggering the lockdep \"non-static key\" warning:  [12973.796587] idpf 0000:83:00.0: Device HW Reset initiated [12974.094507] INFO: trying to register non-static key. ... [12974.097208] Call Trace: [12974.097213]  \u003cTASK\u003e [12974.097218]  dump_stack_lvl+0x93/0xe0 [12974.097234]  register_lock_class+0x4c4/0x4e0 [12974.097249]  ? __lock_acquire+0x427/0x2290 [12974.097259]  __lock_acquire+0x98/0x2290 [12974.097272]  lock_acquire+0xc6/0x310 [12974.097281]  ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097311]  ? lockdep_hardirqs_on_prepare+0xde/0x190 [12974.097318]  ? finish_task_switch.isra.0+0xd2/0x350 [12974.097330]  ? __pfx_ptp_aux_kworker+0x10/0x10 [ptp] [12974.097343]  _raw_spin_lock+0x30/0x40 [12974.097353]  ? idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097373]  idpf_ptp_read_src_clk_reg+0xb7/0x150 [idpf] [12974.097391]  ? kthread_worker_fn+0x88/0x3d0 [12974.097404]  ? kthread_worker_fn+0x4e/0x3d0 [12974.097411]  idpf_ptp_update_cached_phctime+0x26/0x120 [idpf] [12974.097428]  ? _raw_spin_unlock_irq+0x28/0x50 [12974.097436]  idpf_ptp_do_aux_work+0x15/0x20 [idpf] [12974.097454]  ptp_aux_kworker+0x20/0x40 [ptp] [12974.097464]  kthread_worker_fn+0xd5/0x3d0 [12974.097474]  ? __pfx_kthread_worker_fn+0x10/0x10 [12974.097482]  kthread+0xf4/0x130 [12974.097489]  ? __pfx_kthread+0x10/0x10 [12974.097498]  ret_from_fork+0x32c/0x410 [12974.097512]  ? __pfx_kthread+0x10/0x10 [12974.097519]  ret_from_fork_asm+0x1a/0x30 [12974.097540]  \u003c/TASK\u003e  Move the call to spin_lock_init() up a bit to make sure read_dev_clk_lock is not touched before it's been initialized.","modified":"2026-08-27T23:06:14.619903922Z","published":"2026-07-19T16:17:58.213Z","upstream":["CVE-2026-64162"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-64162"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.12-1"}]}],"versions":["6.12.100-1","6.12.101-1","6.12.105-1","6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1","6.12.85-1~bpo12+1","6.12.86-1","6.12.86-1~bpo12+1","6.12.88-1","6.12.88-1~bpo12+1","6.12.90-1","6.12.90-1~bpo12+1","6.12.90-2","6.12.90-2~bpo12+1","6.12.94-1","6.12.94-1~bpo12+1","6.12.95-1","6.12.95-1~bpo12+1","6.12.96-1","6.13.10-1~exp1","6.13.11-1~exp1","6.13.2-1~exp1","6.13.3-1~exp1","6.13.4-1~exp1","6.13.5-1~exp1","6.13.6-1~exp1","6.13.7-1~exp1","6.13.8-1~exp1","6.13.9-1~exp1","6.13~rc6-1~exp1","6.13~rc7-1~exp1","6.14.3-1~exp1","6.14.5-1~exp1","6.14.6-1~exp1","6.15-1~exp1","6.15.1-1~exp1","6.15.2-1~exp1","6.15.3-1~exp1","6.15.4-1~exp1","6.15.5-1~exp1","6.15.6-1~exp1","6.15~rc7-1~exp1","6.16-1~exp1","6.16.1-1~exp1","6.16.10-1","6.16.11-1","6.16.12-1","6.16.12-1~bpo13+1","6.16.12-2","6.16.3-1","6.16.3-1~bpo13+1","6.16.5-1","6.16.6-1","6.16.7-1","6.16.8-1","6.16.9-1","6.16~rc7-1~exp1","6.17.10-1","6.17.11-1","6.17.12-1","6.17.13-1","6.17.13-1~bpo13+1","6.17.2-1~exp1","6.17.5-1~exp1","6.17.6-1","6.17.7-1","6.17.7-2","6.17.8-1","6.17.8-1~bpo13+1","6.17.9-1","6.18.1-1~exp1","6.18.10-1","6.18.12-1","6.18.12-1~bpo13+1","6.18.13-1","6.18.14-1","6.18.15-1","6.18.15-1~bpo13+1","6.18.2-1~exp1","6.18.3-1","6.18.5-1","6.18.5-1~bpo13+1","6.18.8-1","6.18.9-1","6.18.9-1~bpo13+1","6.18~rc4-1~exp1","6.18~rc4-1~exp2","6.18~rc5-1~exp1","6.18~rc6-1~exp1","6.18~rc7-1~exp1","6.19-1~exp1","6.19.10-1","6.19.10-1~bpo13+1","6.19.11-1","6.19.11-1~bpo13+1","6.19.12-1","6.19.13-1","6.19.13-1~bpo13+1","6.19.14-1","6.19.14-1~bpo13+1","6.19.2-1~exp1","6.19.3-1~exp1","6.19.4-1~exp1","6.19.5-1~exp1","6.19.6-1","6.19.6-2","6.19.6-2~bpo13+1","6.19.8-1","6.19.8-1~bpo13+1","6.19~rc4-1~exp1","6.19~rc5-1~exp1","6.19~rc6-1~exp1","6.19~rc7-1~exp1","6.19~rc8-1~exp1","7.0-1~exp1","7.0.1-1~exp1","7.0.10-1","7.0.10-1~bpo13+1","7.0.3-1","7.0.4-1","7.0.4-1~bpo13+1","7.0.7-1","7.0.7-1~bpo13+1","7.0.9-1","7.0.9-1~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64162.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}