skbuff: skb_under_panic: text:ffffffff87c3c8f8 len:116 put:14 head:ffff8880185b2400 data:ffff8880185b23f2 tail:0x66 end:0xc0 dev:bridge_slave_1 ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:109! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12302 Comm: syz-executor.0 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 23 42 8a ff 74 24 10 ff 74 24 20 e8 ca 05 cc ff <0f> 0b e8 2e d7 8f f8 4c 8b 64 24 18 e8 54 42 d2 f8 48 c7 c1 a0 2f RSP: 0018:ffffc900000074f8 EFLAGS: 00010286 RAX: 000000000000008f RBX: ffff888012062140 RCX: 0000000000000000 RDX: ffff88801e230000 RSI: ffffffff81594d05 RDI: fffff52000000e91 RBP: ffffffff8a422fa0 R08: 000000000000008f R09: ffff8880b9e30867 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff87c3c8f8 R13: 000000000000000e R14: ffff88805d58c000 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd29bb45000 CR3: 0000000021064000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: skb_under_panic net/core/skbuff.c:119 [inline] skb_push.cold+0x24/0x24 net/core/skbuff.c:1886 br_dev_queue_push_xmit+0x78/0x6e0 net/bridge/br_forward.c:35 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] br_forward_finish net/bridge/br_forward.c:65 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] __br_forward+0x46d/0x610 net/bridge/br_forward.c:109 deliver_clone net/bridge/br_forward.c:125 [inline] maybe_deliver+0x32e/0x430 net/bridge/br_forward.c:181 br_flood+0x13a/0x450 net/bridge/br_forward.c:223 br_handle_frame_finish+0x64e/0x1680 net/bridge/br_input.c:162 nf_hook_bridge_pre net/bridge/br_input.c:246 [inline] br_handle_frame+0xdd0/0x10a0 net/bridge/br_input.c:367 __netif_receive_skb_core+0xa0f/0x38a0 net/core/dev.c:5199 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5303 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5419 netif_receive_skb_internal net/core/dev.c:5524 [inline] netif_receive_skb+0x157/0x8e0 net/core/dev.c:5583 ieee80211_rx_monitor net/mac80211/rx.c:836 [inline] ieee80211_rx_list+0x166c/0x2430 net/mac80211/rx.c:4738 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4767 ieee80211_rx include/net/mac80211.h:4507 [inline] ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235 tasklet_action_common.constprop.0+0x1d7/0x2d0 kernel/softirq.c:558 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x132/0x200 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 RIP: 0010:get_page_from_freelist+0x29a/0x4110 mm/page_alloc.c:3891 Code: e3 03 48 83 fb 02 0f 87 4c 2e 00 00 49 8d 3c df 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 85 2e 00 00 49 8d 6f 18 4d 8b 24 df <48> 89 e8 48 c1 e8 03 42 80 3c 28 00 0f 85 5e 2e 00 00 48 8b 04 24 RSP: 0018:ffffc9000194f450 EFLAGS: 00000246 RAX: 1ffff11027fff7c1 RBX: 0000000000000001 RCX: 0000000000000170 RDX: 1ffff11027fffa60 RSI: 0000000000000000 RDI: ffff88813fffbe08 RBP: ffff88813fffbe18 R08: 0000000000002800 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc9000194f678 R15: ffff88813fffbe00 __alloc_pages_nodemask+0x2d6/0x730 mm/page_alloc.c:4988 alloc_pages_current+0x191/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] __get_free_pages+0x8/0x40 mm/page_alloc.c:5031 tlb_next_batch mm/mmu_gather.c:29 [inline] __tlb_remove_page_size+0x253/0x420 mm/mmu_gather.c:83 __tlb_remove_page include/asm-generic/tlb.h:438 [inline] zap_pte_range mm/memory.c:1267 [inline] zap_pmd_range mm/memory.c:1368 [inline] zap_pud_range mm/memory.c:1397 [inline] zap_p4d_range mm/memory.c:1418 [inline] unmap_page_range+0xea7/0x2640 mm/memory.c:1439 unmap_single_vma+0x198/0x300 mm/memory.c:1484 unmap_vmas+0x168/0x2e0 mm/memory.c:1516 exit_mmap+0x2b1/0x5a0 mm/mmap.c:3220 __mmput+0x122/0x470 kernel/fork.c:1083 mmput+0x53/0x60 kernel/fork.c:1104 exit_mm kernel/exit.c:500 [inline] do_exit+0xa97/0x29e0 kernel/exit.c:810 do_group_exit+0x125/0x310 kernel/exit.c:920 get_signal+0x42a/0x1fb0 kernel/signal.c:2792 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x124/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e229 Code: Unable to access opcode bytes at RIP 0x45e1ff. RSP: 002b:00007f9d05163c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffb3 RBX: 0000000000000003 RCX: 000000000045e229 RDX: 0000000020000340 RSI: 00000000401054d5 RDI: 0000000000000004 RBP: 000000000119c260 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c22c R13: 00007ffff374402f R14: 00007f9d051649c0 R15: 000000000119c22c Modules linked in: ---[ end trace 9198bf0c91332fe9 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 23 42 8a ff 74 24 10 ff 74 24 20 e8 ca 05 cc ff <0f> 0b e8 2e d7 8f f8 4c 8b 64 24 18 e8 54 42 d2 f8 48 c7 c1 a0 2f RSP: 0018:ffffc900000074f8 EFLAGS: 00010286 RAX: 000000000000008f RBX: ffff888012062140 RCX: 0000000000000000 RDX: ffff88801e230000 RSI: ffffffff81594d05 RDI: fffff52000000e91 RBP: ffffffff8a422fa0 R08: 000000000000008f R09: ffff8880b9e30867 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff87c3c8f8 R13: 000000000000000e R14: ffff88805d58c000 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd29bb45000 CR3: 0000000021064000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600