device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 PGD 80000001c2d53067 P4D 80000001c2d53067 PUD 1bf9f1067 PMD 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 4706 Comm: syz-fuzzer Not tainted 4.19.0-rc1+ #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_free_page+0xec/0x2d0 mm/kmsan/kmsan_hooks.c:318 Code: 01 00 00 48 c7 00 00 00 00 00 44 39 e1 0f 8d b0 00 00 00 48 63 d1 48 8d 14 52 48 c1 e2 05 48 8b 54 13 40 48 83 c0 60 83 c1 01 <80> 7a 50 00 74 be 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe RSP: 0018:ffff8801a4dff240 EFLAGS: 00010002 RAX: ffffea0006e176c8 RBX: ffffea0006e10000 RCX: 000000000000013d RDX: 0000000000000000 RSI: 0000000000000009 RDI: ffffea0006e34000 RBP: ffff8801a4dff288 R08: 0000000000480020 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81c45470 R12: 0000000000000200 R13: ffff8801a3f81d80 R14: 0000000000000009 R15: ffffea0007368000 FS: 000000c42003e3e8(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000050 CR3: 00000001bdf1c000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: free_pages_prepare mm/page_alloc.c:994 [inline] __free_pages_ok+0x25a/0x16c0 mm/page_alloc.c:1252 free_compound_page+0x8b/0xc0 mm/page_alloc.c:572 free_transhuge_page+0x3af/0x460 mm/huge_memory.c:2733 __put_compound_page mm/swap.c:96 [inline] release_pages+0x70c/0x1650 mm/swap.c:760 free_pages_and_swap_cache+0x54b/0x570 mm/swap_state.c:319 tlb_flush_mmu_free mm/memory.c:250 [inline] tlb_flush_mmu+0x504/0x6b0 mm/memory.c:259 arch_tlb_finish_mmu mm/memory.c:274 [inline] tlb_finish_mmu+0x205/0x420 mm/memory.c:433 exit_mmap+0x519/0x940 mm/mmap.c:3095 __mmput+0x154/0x5f0 kernel/fork.c:1003 mmput+0xa7/0xe0 kernel/fork.c:1024 exit_mm+0x6dd/0x790 kernel/exit.c:546 do_exit+0xbf7/0x3890 kernel/exit.c:856 do_group_exit+0x1a0/0x350 kernel/exit.c:972 get_signal+0x1425/0x1ef0 kernel/signal.c:2513 do_signal+0x11d/0x2060 arch/x86/kernel/signal.c:816 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline] prepare_exit_to_usermode+0x273/0x410 arch/x86/entry/common.c:197 retint_user+0x8/0x8 RIP: 0033:0x41de8f Code: 0f 84 f0 05 00 00 83 c2 01 48 63 fa e8 da d6 fe ff 48 85 c0 0f 84 2f f6 ff ff 48 8b 74 24 28 0f b6 0e 84 c9 0f 84 4c 01 00 00 <48> 8d 50 01 eb 19 0f 1f 00 88 4a ff 48 83 c6 01 48 83 c2 01 0f b6 RSP: 002b:000000c420127e80 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02 RAX: 000000c420000000 RBX: 000000c41fb550f7 RCX: 0000000000000030 RDX: 000000c431ac0000 RSI: 000000c42955e0f0 RDI: 0000000000000018 RBP: 000000c420127f18 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 000000c42ba10540 R12: 0000000000000001 R13: 00000000000000ff R14: 00000000000000ff R15: 0000000000000021 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 0000000000000050 ---[ end trace 3a7594a59f78f238 ]--- RIP: 0010:kmsan_free_page+0xec/0x2d0 mm/kmsan/kmsan_hooks.c:318 Code: 01 00 00 48 c7 00 00 00 00 00 44 39 e1 0f 8d b0 00 00 00 48 63 d1 48 8d 14 52 48 c1 e2 05 48 8b 54 13 40 48 83 c0 60 83 c1 01 <80> 7a 50 00 74 be 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe RSP: 0018:ffff8801a4dff240 EFLAGS: 00010002 RAX: ffffea0006e176c8 RBX: ffffea0006e10000 RCX: 000000000000013d RDX: 0000000000000000 RSI: 0000000000000009 RDI: ffffea0006e34000 RBP: ffff8801a4dff288 R08: 0000000000480020 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81c45470 R12: 0000000000000200 R13: ffff8801a3f81d80 R14: 0000000000000009 R15: ffffea0007368000 FS: 000000c42003e3e8(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000050 CR3: 00000001bdf1c000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600