bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6099/2:b..l P6094/2:b..l P6090/1:b..l rcu: (detected by 1, t=10502 jiffies, g=12145, q=738 ncpus=2) task:syz.0.36 state:R running task stack:27496 pid:6090 tgid:6090 ppid:5839 task_flags:0x40044c flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6947 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1768 [inline] zap_pmd_range mm/memory.c:1830 [inline] zap_pud_range mm/memory.c:1859 [inline] zap_p4d_range mm/memory.c:1880 [inline] unmap_page_range+0xf13/0x4420 mm/memory.c:1901 unmap_single_vma+0x19a/0x2b0 mm/memory.c:1947 unmap_vmas+0x22c/0x490 mm/memory.c:1991 exit_mmap+0x1b9/0xb90 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1360 mmput+0x62/0x70 kernel/fork.c:1382 exit_mm kernel/exit.c:586 [inline] do_exit+0x9d4/0x2d90 kernel/exit.c:941 do_group_exit+0xd3/0x2a0 kernel/exit.c:1103 get_signal+0x2673/0x26d0 kernel/signal.c:3035 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f990398d169 RSP: 002b:00007ffd092588d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffdfc RBX: 000000000001b8b7 RCX: 00007f990398d169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9903ba5fac RBP: 0000000000000032 R08: 00007f99047d9000 R09: 0000000409258bcf R10: 00007ffd092589d0 R11: 0000000000000246 R12: 00007f9903ba5fac R13: 00007ffd092589d0 R14: 000000000001b8e9 R15: 00007ffd092589f0 task:syz.1.35 state:R running task stack:27320 pid:6094 tgid:6086 ppid:5852 task_flags:0x400040 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x516/0x20a0 arch/x86/kernel/unwind_orc.c:505 Code: c0 0f 84 05 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 8d 79 05 4c 89 fa 48 c1 ea 03 0f b6 04 02 4c 89 fa 83 e2 07 38 d0 7f 08 <84> c0 0f 85 32 14 00 00 0f b6 41 05 83 e0 07 0f 84 53 fe ff ff 3c RSP: 0018:ffffc9000b77f118 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff9128fbb6 RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff90a0e9fc RBP: ffffc9000b77f1d0 R08: ffffffff9128fbbc R09: 0000000000000000 R10: 000000000000000d R11: 000000000001286f R12: ffffc9000b77f1d8 R13: ffffc9000b77f188 R14: ffffc9000b77f1bd R15: ffffffff9128fbbb arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x8d/0x400 mm/page_owner.c:303 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1130 [inline] __free_frozen_pages+0x69d/0xf90 mm/page_alloc.c:2707 discard_slab mm/slub.c:2707 [inline] __put_partials+0x16d/0x1c0 mm/slub.c:3176 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4138 [inline] slab_alloc_node mm/slub.c:4187 [inline] __do_kmalloc_node mm/slub.c:4317 [inline] __kmalloc_noprof+0x1d4/0x510 mm/slub.c:4330 kmalloc_noprof include/linux/slab.h:906 [inline] kmalloc_array_noprof include/linux/slab.h:945 [inline] drm_atomic_state_init+0xe4/0x320 drivers/gpu/drm/drm_atomic.c:133 drm_atomic_state_alloc drivers/gpu/drm/drm_atomic.c:176 [inline] drm_atomic_state_alloc+0xd3/0x120 drivers/gpu/drm/drm_atomic.c:166 drm_client_modeset_commit_atomic+0xcc/0x7e0 drivers/gpu/drm/drm_client_modeset.c:1020 drm_client_modeset_commit_locked+0x14d/0x580 drivers/gpu/drm/drm_client_modeset.c:1182 pan_display_atomic drivers/gpu/drm/drm_fb_helper.c:1387 [inline] drm_fb_helper_pan_display+0x32d/0xa40 drivers/gpu/drm/drm_fb_helper.c:1447 fb_pan_display+0x479/0x7d0 drivers/video/fbdev/core/fbmem.c:191 bit_update_start+0x49/0x1f0 drivers/video/fbdev/core/bitblit.c:380 fbcon_switch+0xbf5/0x14c0 drivers/video/fbdev/core/fbcon.c:2187 redraw_screen+0x2be/0x760 drivers/tty/vt/vt.c:957 fbcon_resumed+0xc3/0x100 drivers/video/fbdev/core/fbcon.c:2654 fb_set_suspend+0x104/0x1a0 drivers/video/fbdev/core/fbmem.c:595 store_fbstate+0xb8/0x110 drivers/video/fbdev/core/fbsysfs.c:336 dev_attr_store+0x55/0x80 drivers/base/core.c:2440 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x5ba/0x1180 fs/read_write.c:684 ksys_write+0x12a/0x240 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd6e5d8d169 RSP: 002b:00007fd6e3bd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd6e5fa6080 RCX: 00007fd6e5d8d169 RDX: 0000000000000081 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fd6e5e0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd6e5fa6080 R15: 00007fff1ffc7858 task:syz.1.35 state:R running task stack:28504 pid:6099 tgid:6086 ppid:5852 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870 Code: ab 0c 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 02 e9 ed 0e 0f 82 74 02 00 00 8b 35 fa 17 ee 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 d9 aa 0c 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc9000adb7560 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3bf140 RCX: 000000000ab0246e RDX: 0000000000000000 RSI: ffffffff8dbbc97a RDI: ffffffff8bf423e0 RBP: 0000000000000002 R08: e23dff11e4a6e782 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x8d/0x400 mm/page_owner.c:303 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1130 [inline] __free_frozen_pages+0x69d/0xf90 mm/page_alloc.c:2707 discard_slab mm/slub.c:2707 [inline] __put_partials+0x16d/0x1c0 mm/slub.c:3176 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4138 [inline] slab_alloc_node mm/slub.c:4187 [inline] kmem_cache_alloc_noprof+0x1cb/0x3b0 mm/slub.c:4194 lsm_file_alloc security/security.c:733 [inline] security_file_alloc+0x34/0x2b0 security/security.c:2858 init_file+0x93/0x4c0 fs/file_table.c:156 alloc_empty_file+0x73/0x1e0 fs/file_table.c:238 path_openat+0xe0/0x2d40 fs/namei.c:3990 do_filp_open+0x20b/0x470 fs/namei.c:4031 file_open_name+0x2a3/0x450 fs/open.c:1373 acct_on+0x77/0x870 kernel/acct.c:234 __do_sys_acct kernel/acct.c:327 [inline] __se_sys_acct kernel/acct.c:314 [inline] __x64_sys_acct+0xaf/0x230 kernel/acct.c:314 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd6e5d8d169 RSP: 002b:00007fd6e3bb4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 RAX: ffffffffffffffda RBX: 00007fd6e5fa6160 RCX: 00007fd6e5d8d169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000000 RBP: 00007fd6e5e0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fd6e5fa6160 R15: 00007fff1ffc7858 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 14804 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 14722 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 14804 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 14878 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)