kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8918 Comm: syz-executor4 Not tainted 4.20.0-rc7-next-20181224 #1 kobject: 'ax0' (00000000b29fced4): kobject_add_internal: parent: 'net', set: 'devices' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69 Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6 kobject: 'ax0' (00000000b29fced4): kobject_uevent_env RSP: 0018:ffff8880572ff858 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880a3d69ca0 RCX: ffffc9000de33000 RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8 RBP: ffff8880572ff880 R08: 1ffff1100ae77a24 R09: ffffed100ae77a25 R10: ffffed100ae77a24 R11: ffff8880573bd123 R12: 0000000000000000 kobject: 'ax0' (00000000b29fced4): fill_kobj_path: path = '/devices/virtual/net/ax0' R13: ffff8880a3d69d40 R14: 00000000000046d8 R15: 0000000080000000 FS: 00007fef43226700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000260c000 CR3: 00000000a740e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'queues' (00000000754c2a0b): kobject_add_internal: parent: 'ax0', set: '' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: show_smap+0x179/0x590 fs/proc/task_mmu.c:805 kobject: 'queues' (00000000754c2a0b): kobject_uevent_env kobject: 'queues' (00000000754c2a0b): kobject_uevent_env: filter function caused the event to drop! traverse fs/seq_file.c:113 [inline] traverse+0x1d6/0x760 fs/seq_file.c:91 seq_read+0x8f8/0x1130 fs/seq_file.c:188 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:924 kobject: 'rx-0' (00000000ae96fb65): kobject_add_internal: parent: 'queues', set: 'queues' vfs_readv+0x175/0x1c0 fs/read_write.c:986 kobject: 'rx-0' (00000000ae96fb65): kobject_uevent_env kobject: 'rx-0' (00000000ae96fb65): fill_kobj_path: path = '/devices/virtual/net/ax0/queues/rx-0' do_preadv+0x1c4/0x280 fs/read_write.c:1070 kobject: 'tx-0' (0000000011677c63): kobject_add_internal: parent: 'queues', set: 'queues' __do_sys_preadv fs/read_write.c:1120 [inline] __se_sys_preadv fs/read_write.c:1115 [inline] __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 kobject: 'tx-0' (0000000011677c63): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ec9 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'tx-0' (0000000011677c63): fill_kobj_path: path = '/devices/virtual/net/ax0/queues/tx-0' RSP: 002b:00007fef43225c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9 RDX: 0000000000000001 RSI: 0000000020000700 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000246 R12: 00007fef432266d4 R13: 00000000004c46f0 R14: 00000000004d79d8 R15: 00000000ffffffff mkiss: ax0: crc mode is auto. Modules linked in: kobject: 'loop3' (00000000234c46e9): kobject_uevent_env ---[ end trace b1729f71e78ef251 ]--- kobject: 'loop3' (00000000234c46e9): fill_kobj_path: path = '/devices/virtual/block/loop3' RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69 kobject: 'rx-0' (00000000ae96fb65): kobject_cleanup, parent 00000000754c2a0b kobject: 'rx-0' (00000000ae96fb65): auto cleanup 'remove' event kobject: 'rx-0' (00000000ae96fb65): kobject_uevent_env kobject: 'rx-0' (00000000ae96fb65): fill_kobj_path: path = '/devices/virtual/net/ax0/queues/rx-0' kobject: 'rx-0' (00000000ae96fb65): auto cleanup kobject_del kobject: 'rx-0' (00000000ae96fb65): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000011677c63): kobject_cleanup, parent 00000000754c2a0b kobject: 'tx-0' (0000000011677c63): auto cleanup 'remove' event kobject: 'tx-0' (0000000011677c63): kobject_uevent_env kobject: 'tx-0' (0000000011677c63): fill_kobj_path: path = '/devices/virtual/net/ax0/queues/tx-0' kobject: 'tx-0' (0000000011677c63): auto cleanup kobject_del kobject: 'tx-0' (0000000011677c63): calling ktype release Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6 kobject: 'tx-0': free name kobject: 'queues' (00000000754c2a0b): kobject_cleanup, parent (null) RSP: 0018:ffff8880572ff858 EFLAGS: 00010202 kobject: 'queues' (00000000754c2a0b): calling ktype release RAX: dffffc0000000000 RBX: ffff8880a3d69ca0 RCX: ffffc9000de33000 kobject: 'queues' (00000000754c2a0b): kset_release kobject: 'queues': free name RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8 kobject: 'ax0' (00000000b29fced4): kobject_uevent_env RBP: ffff8880572ff880 R08: 1ffff1100ae77a24 R09: ffffed100ae77a25 kobject: 'ax0' (00000000b29fced4): fill_kobj_path: path = '/devices/virtual/net/ax0' R10: ffffed100ae77a24 R11: ffff8880573bd123 R12: 0000000000000000 R13: ffff8880a3d69d40 R14: 00000000000046d8 R15: 0000000080000000 kobject: 'loop5' (0000000010d3df1c): kobject_uevent_env FS: 00007fef43226700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 kobject: 'loop5' (0000000010d3df1c): fill_kobj_path: path = '/devices/virtual/block/loop5' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000619570 CR3: 00000000a740e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop2' (00000000d4173a1d): kobject_uevent_env