===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0 Not tainted ----------------------------------------------------- syz-executor.2/5480 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire: ffff8880475e6a00 (&stab->lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] ffff8880475e6a00 (&stab->lock){+...}-{2:2}, at: __sock_map_delete net/core/sock_map.c:414 [inline] ffff8880475e6a00 (&stab->lock){+...}-{2:2}, at: sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 and this task is already holding: ffff88801d8d8358 (&dev->vblank_time_lock){-.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff88801d8d8358 (&dev->vblank_time_lock){-.-.}-{2:2}, at: drm_vblank_enable+0xbf/0x500 drivers/gpu/drm/drm_vblank.c:1155 which would create a new lock dependency: (&dev->vblank_time_lock){-.-.}-{2:2} -> (&stab->lock){+...}-{2:2} but this new dependency connects a HARDIRQ-irq-safe lock: (&dev->vblank_time_lock){-.-.}-{2:2} ... which became HARDIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] drm_handle_vblank+0x132/0xbf0 drivers/gpu/drm/drm_vblank.c:1891 vkms_vblank_simulate+0xed/0x3e0 drivers/gpu/drm/vkms/vkms_crtc.c:29 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] default_idle+0xf/0x20 arch/x86/kernel/process.c:742 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x32c/0x3f0 kernel/sched/idle.c:332 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430 start_secondary+0x220/0x2b0 arch/x86/kernel/smpboot.c:313 common_startup_64+0x13e/0x148 to a HARDIRQ-irq-unsafe lock: (&stab->lock){+...}-{2:2} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] __sock_map_delete net/core/sock_map.c:414 [inline] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421 __traceiter_hrtimer_init+0x6c/0xc0 include/trace/events/timer.h:193 trace_hrtimer_init include/trace/events/timer.h:193 [inline] debug_init kernel/time/hrtimer.c:472 [inline] hrtimer_init+0x17c/0x240 kernel/time/hrtimer.c:1599 tcp_init_xmit_timers+0x40/0xc0 net/ipv4/tcp_timer.c:859 tcp_init_sock+0x76/0xa30 net/ipv4/tcp.c:420 tcp_v6_init_sock+0x15/0x80 net/ipv6/tcp_ipv6.c:2125 inet6_create net/ipv6/af_inet6.c:261 [inline] inet6_create+0xb53/0x12e0 net/ipv6/af_inet6.c:120 __sock_create+0x32e/0x800 net/socket.c:1571 sock_create net/socket.c:1622 [inline] __sys_socket_create net/socket.c:1659 [inline] __sys_socket+0x14f/0x260 net/socket.c:1706 __do_compat_sys_socketcall+0x57e/0x700 net/compat.c:448 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&stab->lock); local_irq_disable(); lock(&dev->vblank_time_lock); lock(&stab->lock); lock(&dev->vblank_time_lock); *** DEADLOCK *** 11 locks held by syz-executor.2/5480: #0: ffff88801d8d82f8 (&dev->clientlist_mutex){+.+.}-{3:3}, at: drm_client_dev_restore+0xd8/0x2a0 drivers/gpu/drm/drm_client.c:242 #1: ffff88807ea4ce80 (&helper->lock){+.+.}-{3:3}, at: __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:242 [inline] #1: ffff88807ea4ce80 (&helper->lock){+.+.}-{3:3}, at: __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:230 [inline] #1: ffff88807ea4ce80 (&helper->lock){+.+.}-{3:3}, at: drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:278 [inline] #1: ffff88807ea4ce80 (&helper->lock){+.+.}-{3:3}, at: drm_fb_helper_lastclose+0xbf/0x160 drivers/gpu/drm/drm_fb_helper.c:2005 #2: ffff88801d8d81b0 (&dev->master_mutex){+.+.}-{3:3}, at: drm_master_internal_acquire+0x21/0x80 drivers/gpu/drm/drm_auth.c:452 #3: ffff88807ea4cc98 (&client->modeset_mutex){+.+.}-{3:3}, at: drm_client_modeset_commit_locked+0x4c/0x580 drivers/gpu/drm/drm_client_modeset.c:1152 #4: ffffc90002b37c50 (crtc_ww_class_acquire){+.+.}-{0:0}, at: drm_client_modeset_commit_atomic+0xd0/0x810 drivers/gpu/drm/drm_client_modeset.c:990 #5: ffff88801cefe0b0 (crtc_ww_class_mutex){+.+.}-{3:3}, at: ww_mutex_lock_slow include/linux/ww_mutex.h:299 [inline] #5: ffff88801cefe0b0 (crtc_ww_class_mutex){+.+.}-{3:3}, at: modeset_lock+0x3b2/0x6c0 drivers/gpu/drm/drm_modeset_lock.c:311 #6: ffff88801d8da860 (&vkms_out->lock){-...}-{2:2}, at: drm_atomic_helper_commit_planes+0x1cf/0x1000 drivers/gpu/drm/drm_atomic_helper.c:2757 #7: ffff88801d8d83f0 (&dev->event_lock){-...}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #7: ffff88801d8d83f0 (&dev->event_lock){-...}-{2:2}, at: vkms_crtc_atomic_flush+0x98/0x2b0 drivers/gpu/drm/vkms/vkms_crtc.c:253 #8: ffff88801d8d8398 (&dev->vbl_lock){..-.}-{2:2}, at: drm_vblank_get+0xcc/0x280 drivers/gpu/drm/drm_vblank.c:1198 #9: ffff88801d8d8358 (&dev->vblank_time_lock){-.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #9: ffff88801d8d8358 (&dev->vblank_time_lock){-.-.}-{2:2}, at: drm_vblank_enable+0xbf/0x500 drivers/gpu/drm/drm_vblank.c:1155 #10: ffffffff8d7b4c20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #10: ffffffff8d7b4c20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #10: ffffffff8d7b4c20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #10: ffffffff8d7b4c20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run3+0xf8/0x440 kernel/trace/bpf_trace.c:2421 the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&dev->vblank_time_lock){-.-.}-{2:2} { IN-HARDIRQ-W at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] drm_handle_vblank+0x132/0xbf0 drivers/gpu/drm/drm_vblank.c:1891 vkms_vblank_simulate+0xed/0x3e0 drivers/gpu/drm/vkms/vkms_crtc.c:29 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] default_idle+0xf/0x20 arch/x86/kernel/process.c:742 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x32c/0x3f0 kernel/sched/idle.c:332 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430 start_secondary+0x220/0x2b0 arch/x86/kernel/smpboot.c:313 common_startup_64+0x13e/0x148 IN-SOFTIRQ-W at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 drm_vblank_disable_and_save+0xc3/0x3d0 drivers/gpu/drm/drm_vblank.c:450 vblank_disable_fn+0x164/0x1b0 drivers/gpu/drm/drm_vblank.c:485 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1844 [inline] __run_timers+0x74b/0xaf0 kernel/time/timer.c:2418 __run_timer_base kernel/time/timer.c:2429 [inline] __run_timer_base kernel/time/timer.c:2422 [inline] run_timer_base+0x111/0x190 kernel/time/timer.c:2438 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2448 __do_softirq+0x218/0x922 kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:633 [inline] irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 check_kcov_mode kernel/kcov.c:173 [inline] __sanitizer_cov_trace_pc+0x18/0x60 kernel/kcov.c:207 unwind_get_return_address+0x58/0xe0 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xc1/0x170 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:240 [inline] __kasan_slab_free+0x11d/0x1a0 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kmem_cache_free+0x12e/0x380 mm/slub.c:4344 security_file_free+0xae/0xe0 security/security.c:2745 file_free fs/file_table.c:65 [inline] fput fs/file_table.c:477 [inline] fput+0x1cb/0x390 fs/file_table.c:471 path_openat+0x11ac/0x2990 fs/namei.c:3808 do_filp_open+0x1dc/0x430 fs/namei.c:3826 do_open_execat+0xfa/0x3f0 fs/exec.c:930 alloc_bprm+0x2b/0xc50 fs/exec.c:1541 kernel_execve+0xb0/0x4e0 fs/exec.c:2004 call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:110 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] drm_reset_vblank_timestamp drivers/gpu/drm/drm_vblank.c:233 [inline] drm_crtc_vblank_on+0x27b/0x690 drivers/gpu/drm/drm_vblank.c:1487 drm_atomic_helper_commit_modeset_enables+0x2c7/0xb00 drivers/gpu/drm/drm_atomic_helper.c:1487 vkms_atomic_commit_tail+0x69/0x240 drivers/gpu/drm/vkms/vkms_drv.c:75 commit_tail+0x284/0x410 drivers/gpu/drm/drm_atomic_helper.c:1832 drm_atomic_helper_commit+0x2fd/0x380 drivers/gpu/drm/drm_atomic_helper.c:2072 drm_atomic_commit+0x227/0x300 drivers/gpu/drm/drm_atomic.c:1514 drm_client_modeset_commit_atomic+0x6c6/0x810 drivers/gpu/drm/drm_client_modeset.c:1051 drm_client_modeset_commit_locked+0x14d/0x580 drivers/gpu/drm/drm_client_modeset.c:1154 drm_client_modeset_commit+0x4f/0x80 drivers/gpu/drm/drm_client_modeset.c:1180 __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:251 [inline] __drm_fb_helper_restore_fbdev_mode_unlocked+0x130/0x180 drivers/gpu/drm/drm_fb_helper.c:230 drm_fb_helper_set_par+0xd8/0x120 drivers/gpu/drm/drm_fb_helper.c:1344 fbcon_init+0x880/0x1890 drivers/video/fbdev/core/fbcon.c:1093 visual_init+0x31d/0x620 drivers/tty/vt/vt.c:1011 do_bind_con_driver.isra.0+0x57a/0xbf0 drivers/tty/vt/vt.c:3823 do_take_over_console+0x4f4/0x650 drivers/tty/vt/vt.c:4389 do_fbcon_takeover+0xe8/0x210 drivers/video/fbdev/core/fbcon.c:531 do_fb_registered drivers/video/fbdev/core/fbcon.c:2968 [inline] fbcon_fb_registered+0x375/0x670 drivers/video/fbdev/core/fbcon.c:2988 do_register_framebuffer drivers/video/fbdev/core/fbmem.c:449 [inline] register_framebuffer+0x485/0x840 drivers/video/fbdev/core/fbmem.c:515 __drm_fb_helper_initial_config_and_unlock+0xecb/0x1660 drivers/gpu/drm/drm_fb_helper.c:1871 drm_fb_helper_initial_config drivers/gpu/drm/drm_fb_helper.c:1936 [inline] drm_fb_helper_initial_config+0x44/0x60 drivers/gpu/drm/drm_fb_helper.c:1928 drm_fbdev_generic_client_hotplug+0x1a6/0x280 drivers/gpu/drm/drm_fbdev_generic.c:279 drm_client_register+0x195/0x280 drivers/gpu/drm/drm_client.c:141 drm_fbdev_generic_setup+0x184/0x340 drivers/gpu/drm/drm_fbdev_generic.c:341 vkms_create drivers/gpu/drm/vkms/vkms_drv.c:226 [inline] vkms_init+0x62d/0x760 drivers/gpu/drm/vkms/vkms_drv.c:252 do_one_initcall+0x128/0x630 init/main.c:1238 do_initcall_level init/main.c:1300 [inline] do_initcalls init/main.c:1316 [inline] do_basic_setup init/main.c:1335 [inline] kernel_init_freeable+0x660/0xc50 init/main.c:1548 kernel_init+0x1c/0x2b0 init/main.c:1437 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 } ... key at: [] __key.4+0x0/0x40 the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&stab->lock){+...}-{2:2} { HARDIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] __sock_map_delete net/core/sock_map.c:414 [inline] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421 __traceiter_hrtimer_init+0x6c/0xc0 include/trace/events/timer.h:193 trace_hrtimer_init include/trace/events/timer.h:193 [inline] debug_init kernel/time/hrtimer.c:472 [inline] hrtimer_init+0x17c/0x240 kernel/time/hrtimer.c:1599 tcp_init_xmit_timers+0x40/0xc0 net/ipv4/tcp_timer.c:859 tcp_init_sock+0x76/0xa30 net/ipv4/tcp.c:420 tcp_v6_init_sock+0x15/0x80 net/ipv6/tcp_ipv6.c:2125 inet6_create net/ipv6/af_inet6.c:261 [inline] inet6_create+0xb53/0x12e0 net/ipv6/af_inet6.c:120 __sock_create+0x32e/0x800 net/socket.c:1571 sock_create net/socket.c:1622 [inline] __sys_socket_create net/socket.c:1659 [inline] __sys_socket+0x14f/0x260 net/socket.c:1706 __do_compat_sys_socketcall+0x57e/0x700 net/compat.c:448 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] __sock_map_delete net/core/sock_map.c:414 [inline] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421 __traceiter_hrtimer_init+0x6c/0xc0 include/trace/events/timer.h:193 trace_hrtimer_init include/trace/events/timer.h:193 [inline] debug_init kernel/time/hrtimer.c:472 [inline] hrtimer_init+0x17c/0x240 kernel/time/hrtimer.c:1599 pm_runtime_init+0x312/0x400 drivers/base/power/runtime.c:1767 device_pm_init drivers/base/power/power.h:169 [inline] device_initialize+0x243/0x510 drivers/base/core.c:3181 netdev_register_kobject+0x30/0x3f0 net/core/net-sysfs.c:2118 register_netdevice+0x12c8/0x1c40 net/core/dev.c:10277 tun_set_iff drivers/net/tun.c:2849 [inline] __tun_chr_ioctl+0x25c2/0x4970 drivers/net/tun.c:3118 __do_compat_sys_ioctl+0x2c3/0x330 fs/ioctl.c:1004 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 } ... key at: [] __key.1+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] __sock_map_delete net/core/sock_map.c:414 [inline] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421 __traceiter_hrtimer_init+0x6c/0xc0 include/trace/events/timer.h:193 trace_hrtimer_init include/trace/events/timer.h:193 [inline] debug_init kernel/time/hrtimer.c:472 [inline] hrtimer_init+0x17c/0x240 kernel/time/hrtimer.c:1599 vkms_enable_vblank+0xba/0x1a0 drivers/gpu/drm/vkms/vkms_crtc.c:71 __enable_vblank drivers/gpu/drm/drm_vblank.c:1142 [inline] drm_vblank_enable+0x305/0x500 drivers/gpu/drm/drm_vblank.c:1165 drm_vblank_get+0x174/0x280 drivers/gpu/drm/drm_vblank.c:1201 vkms_crtc_atomic_flush+0xa0/0x2b0 drivers/gpu/drm/vkms/vkms_crtc.c:255 drm_atomic_helper_commit_planes+0x61c/0x1000 drivers/gpu/drm/drm_atomic_helper.c:2820 vkms_atomic_commit_tail+0x5e/0x240 drivers/gpu/drm/vkms/vkms_drv.c:73 commit_tail+0x284/0x410 drivers/gpu/drm/drm_atomic_helper.c:1832 drm_atomic_helper_commit+0x2fd/0x380 drivers/gpu/drm/drm_atomic_helper.c:2072 drm_atomic_commit+0x227/0x300 drivers/gpu/drm/drm_atomic.c:1514 drm_client_modeset_commit_atomic+0x6c6/0x810 drivers/gpu/drm/drm_client_modeset.c:1051 drm_client_modeset_commit_locked+0x14d/0x580 drivers/gpu/drm/drm_client_modeset.c:1154 drm_client_modeset_commit+0x4f/0x80 drivers/gpu/drm/drm_client_modeset.c:1180 __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:251 [inline] __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:230 [inline] drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:278 [inline] drm_fb_helper_lastclose+0xc7/0x160 drivers/gpu/drm/drm_fb_helper.c:2005 drm_fbdev_generic_client_restore+0x2c/0x40 drivers/gpu/drm/drm_fbdev_generic.c:258 drm_client_dev_restore+0x188/0x2a0 drivers/gpu/drm/drm_client.c:247 drm_release+0x32f/0x3e0 drivers/gpu/drm/drm_file.c:437 __fput+0x270/0xb80 fs/file_table.c:422 __fput_sync+0x47/0x50 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close fs/open.c:1541 [inline] __ia32_sys_close+0x86/0x100 fs/open.c:1541 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 stack backtrace: CPU: 0 PID: 5480 Comm: syz-executor.2 Not tainted 6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_bad_irq_dependency kernel/locking/lockdep.c:2626 [inline] check_irq_usage+0xe3c/0x1490 kernel/locking/lockdep.c:2865 check_prev_add kernel/locking/lockdep.c:3138 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x248e/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] __sock_map_delete net/core/sock_map.c:414 [inline] sock_map_delete_elem+0xc8/0x150 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421 __traceiter_hrtimer_init+0x6c/0xc0 include/trace/events/timer.h:193 trace_hrtimer_init include/trace/events/timer.h:193 [inline] debug_init kernel/time/hrtimer.c:472 [inline] hrtimer_init+0x17c/0x240 kernel/time/hrtimer.c:1599 vkms_enable_vblank+0xba/0x1a0 drivers/gpu/drm/vkms/vkms_crtc.c:71 __enable_vblank drivers/gpu/drm/drm_vblank.c:1142 [inline] drm_vblank_enable+0x305/0x500 drivers/gpu/drm/drm_vblank.c:1165 drm_vblank_get+0x174/0x280 drivers/gpu/drm/drm_vblank.c:1201 vkms_crtc_atomic_flush+0xa0/0x2b0 drivers/gpu/drm/vkms/vkms_crtc.c:255 drm_atomic_helper_commit_planes+0x61c/0x1000 drivers/gpu/drm/drm_atomic_helper.c:2820 vkms_atomic_commit_tail+0x5e/0x240 drivers/gpu/drm/vkms/vkms_drv.c:73 commit_tail+0x284/0x410 drivers/gpu/drm/drm_atomic_helper.c:1832 drm_atomic_helper_commit+0x2fd/0x380 drivers/gpu/drm/drm_atomic_helper.c:2072 drm_atomic_commit+0x227/0x300 drivers/gpu/drm/drm_atomic.c:1514 drm_client_modeset_commit_atomic+0x6c6/0x810 drivers/gpu/drm/drm_client_modeset.c:1051 drm_client_modeset_commit_locked+0x14d/0x580 drivers/gpu/drm/drm_client_modeset.c:1154 drm_client_modeset_commit+0x4f/0x80 drivers/gpu/drm/drm_client_modeset.c:1180 __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:251 [inline] __drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:230 [inline] drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:278 [inline] drm_fb_helper_lastclose+0xc7/0x160 drivers/gpu/drm/drm_fb_helper.c:2005 drm_fbdev_generic_client_restore+0x2c/0x40 drivers/gpu/drm/drm_fbdev_generic.c:258 drm_client_dev_restore+0x188/0x2a0 drivers/gpu/drm/drm_client.c:247 drm_release+0x32f/0x3e0 drivers/gpu/drm/drm_file.c:437 __fput+0x270/0xb80 fs/file_table.c:422 __fput_sync+0x47/0x50 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close fs/open.c:1541 [inline] __ia32_sys_close+0x86/0x100 fs/open.c:1541 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7a/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7f/0x89 RIP: 0023:0xf72af579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffa8bb60 EFLAGS: 00000293 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000058182400 RDX: 0000000000000000 RSI: 00000000f7406ff4 RDI: 000000000000d735 RBP: 00000000f742d0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 0 PID: 5480 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x29/0x30 kernel/locking/irqflag-debug.c:10 Modules linked in: CPU: 0 PID: 5480 Comm: syz-executor.2 Not tainted 6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi