------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff80008ecb7820 x29: ffff80008ecb78d0 x28: dfff800000000000 x27: ffff0000c6898080 x26: ffff80008ecb7820 x25: dfff800000000000 x24: ffff700011d96f04 x23: ffff800086eca2a0 x22: ffff0000c6a23000 x21: ffff800086f515e0 x20: ffff0000c6a3e000 x19: 0000000000000000 x18: 1fffe00035bd9828 x17: 0000000000000003 x16: ffff800088a77000 x15: ffff800088b27780 x14: 000000000009f5ee x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000002 x9 : aba973bbb0ae7000 x8 : aba973bbb0ae7000 x7 : 0000000000000000 x6 : ffff800080483190 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f3e60 x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6a3e000 dump_backtrace(regs = 00000000ce9e5a17 tsk = 0000000000000000) Call trace: drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 280010 hardirqs last enabled at (280009): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (280009): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (280010): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (278330): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (278330): [] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline] softirqs last enabled at (278330): [] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] softirqs last enabled at (278330): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (278330): [] wg_packet_tx_worker+0x6b4/0x75c drivers/net/wireguard/send.c:276 softirqs last disabled at (278326): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (278326): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last disabled at (278326): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last disabled at (278326): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last disabled at (278326): [] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff80008ecb7820 x29: ffff80008ecb78d0 x28: dfff800000000000 x27: ffff0000c6898080 x26: ffff80008ecb7820 x25: dfff800000000000 x24: ffff700011d96f04 x23: ffff800086eca2a0 x22: ffff0000c6a23000 x21: ffff800086f515e0 x20: ffff0000c6a3e000 x19: 0000000000000000 x18: 1fffe00035bd9828 x17: 0000000000000003 x16: ffff800088a77000 x15: ffff800088b27780 x14: 000000000009f633 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000002 x9 : aba973bbb0ae7000 x8 : aba973bbb0ae7000 x7 : 0000000000000000 x6 : ffff800080483190 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f3e60 x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6a3e000 dump_backtrace(regs = 00000000ce9e5a17 tsk = 0000000000000000) Call trace: drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 280010 hardirqs last enabled at (280009): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (280009): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (280010): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (278330): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (278330): [] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline] softirqs last enabled at (278330): [] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] softirqs last enabled at (278330): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (278330): [] wg_packet_tx_worker+0x6b4/0x75c drivers/net/wireguard/send.c:276 softirqs last disabled at (278326): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (278326): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last disabled at (278326): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last disabled at (278326): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last disabled at (278326): [] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff80008ecb7820 x29: ffff80008ecb78d0 x28: dfff800000000000 x27: ffff0000c6898080 x26: ffff80008ecb7820 x25: dfff800000000000 x24: ffff700011d96f04 x23: ffff800086eca2a0 x22: ffff0000c6a23000 x21: ffff800086f515e0 x20: ffff0000c6a3e000 x19: 0000000000000000 x18: 1fffe00035bd9828 x17: 0000000000000003 x16: ffff800088a77000 x15: ffff800088b27780 x14: 000000000009f678 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000002 x9 : aba973bbb0ae7000 x8 : aba973bbb0ae7000 x7 : 0000000000000000 x6 : ffff800080483190 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f3e60 x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6a3e000 dump_backtrace(regs = 00000000ce9e5a17 tsk = 0000000000000000) Call trace: drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 280010 hardirqs last enabled at (280009): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (280009): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (280010): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (278330): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (278330): [] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline] softirqs last enabled at (278330): [] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] softirqs last enabled at (278330): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (278330): [] wg_packet_tx_worker+0x6b4/0x75c drivers/net/wireguard/send.c:276 softirqs last disabled at (278326): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (278326): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last disabled at (278326): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last disabled at (278326): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last disabled at (278326): [] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff80008ecb7820 x29: ffff80008ecb78d0 x28: dfff800000000000 x27: ffff0000c6898080 x26: ffff80008ecb7820 x25: dfff800000000000 x24: ffff700011d96f04 x23: ffff800086eca2a0 x22: ffff0000c6a23000 x21: ffff800086f515e0 x20: ffff0000c6a3e000 x19: 0000000000000000 x18: 1fffe00035bd9828 x17: 0000000000000003 x16: ffff800088a77000 x15: ffff800088b27780 x14: 000000000009f751 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000002 x9 : aba973bbb0ae7000 x8 : aba973bbb0ae7000 x7 : 0000000000000000 x6 : ffff800080483190 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f3e60 x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6a3e000 dump_backtrace(regs = 00000000ce9e5a17 tsk = 0000000000000000) Call trace: drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 280010 hardirqs last enabled at (280009): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (280009): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (280010): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (278330): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (278330): [] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline] softirqs last enabled at (278330): [] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] softirqs last enabled at (278330): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (278330): [] wg_packet_tx_worker+0x6b4/0x75c drivers/net/wireguard/send.c:276 softirqs last disabled at (278326): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (278326): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last disabled at (278326): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last disabled at (278326): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last disabled at (278326): [] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:0/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff80008ecb7820 x29: ffff80008ecb78d0 x28: dfff800000000000 x27: ffff0000c6898080 x26: ffff80008ecb7820 x25: dfff800000000000 x24: ffff700011d96f04 x23: ffff800086eca2a0 x22: ffff0000c6a23000 x21: ffff800086f515e0 x20: ffff0000c6a3e000 x19: 0000000000000000 x18: 1fffe00035bd9828 x17: 0000000000000003 x16: ffff800088a77000 x15: ffff800088b27780 x14: 000000000009f799 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000002 x9 : aba973bbb0ae7000 x8 : aba973bbb0ae7000 x7 : 0000000000000000 x6 : ffff800080483190 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f3e60 x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6a3e000 dump_backtrace(regs = 00000000ce9e5a17 tsk = 0000000000000000) Call trace: drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 280010 hardirqs last enabled at (280009): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (280009): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (280010): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (278330): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (278330): [] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline] softirqs last enabled at (278330): [] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] softirqs last enabled at (278330): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last enabled at (278330): [] wg_packet_tx_worker+0x6b4/0x75c drivers/net/wireguard/send.c:276 softirqs last disabled at (278326): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (278326): [] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline] softirqs last disabled at (278326): [] keep_key_fresh drivers/net/wireguard/send.c:129 [inline] softirqs last disabled at (278326): [] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] softirqs last disabled at (278326): [] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276 ---[ end trace 0000000000000000 ]--- cfg80211: Exceeded CRDA call max attempts. Not calling CRDA ipv6_addr_label(addr=0000:0000:0000:0000:0000:0000:0000:0001, type=16, ifindex=8) => 00000000 ipv6_addr_label(addr=0000:0000:0000:0000:0000:0000:ac14:14aa, type=128, ifindex=8) => 00000003 ipv6_addr_label(addr=0000:0000:0000:0000:0000:0000:ac14:140b, type=128, ifindex=8) => 00000003 ipv6_addr_label(addr=0000:0000:0000:0000:0000:0000:ac14:140a, type=128, ifindex=8) => 00000003 ipv6_addr_label(addr=0000:0000:0000:0000:0000:0000:7f00:0001, type=128, ifindex=8) => 00000003