team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 PGD 80000001b43a4067 P4D 80000001b43a4067 PUD 1b43a1067 PMD 0 Oops: 0000 [#1] SMP PTI CPU: 1 PID: 4330 Comm: syz-fuzzer Not tainted 4.19.0-rc1+ #42 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:ffff8801b0feee40 EFLAGS: 00010002 RAX: ffffea0008dc7248 RBX: ffffea0008dc0000 RCX: 0000000000000131 RDX: 0000000000000000 RSI: 0000000000000009 RDI: ffffea0000504000 RBP: ffff8801b0feee88 R08: 0000000000480020 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81c45470 R12: 0000000000000200 R13: ffff8801c0143b00 R14: 0000000000000009 R15: ffffea0000588000 FS: 000000c420026068(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000050 CR3: 00000001b474a000 CR4: 00000000001406e0 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] zap_pte_range mm/memory.c:1406 [inline] zap_pmd_range mm/memory.c:1441 [inline] zap_pud_range mm/memory.c:1470 [inline] zap_p4d_range mm/memory.c:1491 [inline] unmap_page_range+0x37b8/0x4170 mm/memory.c:1512 unmap_single_vma+0x445/0x5e0 mm/memory.c:1557 unmap_vmas+0x251/0x380 mm/memory.c:1587 exit_mmap+0x4b7/0x940 mm/mmap.c:3093 __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 syscall_return_slowpath+0xdb/0x700 arch/x86/entry/common.c:268 do_syscall_64+0xde/0x100 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x45d911 Code: Bad RIP value. RSP: 002b:000000c420035f18 EFLAGS: 00000246 ORIG_RAX: 000000000000010e RAX: fffffffffffffdfe RBX: 0000000000000002 RCX: 000000000045d911 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000c420035f28 R08: 000000c420035f18 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000430120 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 0000000000000050 ---[ end trace 07b31ee1e06df0a9 ]--- 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:ffff8801b0feee40 EFLAGS: 00010002 RAX: ffffea0008dc7248 RBX: ffffea0008dc0000 RCX: 0000000000000131 RDX: 0000000000000000 RSI: 0000000000000009 RDI: ffffea0000504000 RBP: ffff8801b0feee88 R08: 0000000000480020 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81c45470 R12: 0000000000000200 R13: ffff8801c0143b00 R14: 0000000000000009 R15: ffffea0000588000 FS: 000000c420026068(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045d8e7 CR3: 00000001b474a000 CR4: 00000000001406e0