------------[ cut here ]------------ kernel BUG at mm/slab.c:2961! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10798 Comm: syz-executor.3 Not tainted 5.0.0-rc8+ #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:alloc_block mm/slab.c:2961 [inline] RIP: 0010:cache_alloc_refill mm/slab.c:3020 [inline] RIP: 0010:____cache_alloc mm/slab.c:3123 [inline] RIP: 0010:____cache_alloc mm/slab.c:3106 [inline] RIP: 0010:__do_cache_alloc mm/slab.c:3345 [inline] RIP: 0010:slab_alloc mm/slab.c:3380 [inline] RIP: 0010:kmem_cache_alloc+0x5fb/0x6f0 mm/slab.c:3548 Code: 45 c8 4c 89 62 08 48 89 53 08 48 89 4b 10 4c 89 60 48 41 f6 45 23 40 0f 84 3d ff ff ff 48 c7 43 20 00 00 00 00 e9 30 ff ff ff <0f> 0b 0f 0b c7 46 0c 01 00 00 00 e9 42 ff ff ff 0f 1f 44 00 00 8b RSP: 0018:ffff8880714179f0 EFLAGS: 00010096 RAX: 000000000000000c RBX: ffffea000164fd80 RCX: ffffffff81a64a26 RDX: ffff88809fca4e38 RSI: 0000000000000004 RDI: ffff88809fca4e00 RBP: ffff888071417a58 R08: 1ffff11013f949c0 R09: ffffed1013f949c1 R10: ffffed1013f949c0 R11: ffff88809fca4e03 R12: ffff88821adf44c0 R13: ffff88805d780940 R14: 0000000000000010 R15: ffffe8ffffc79490 FS: 000000000148a940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f46aae7e8b0 CR3: 00000000969a6000 CR4: 00000000001426f0 Call Trace: inet_twsk_alloc+0x11f/0x950 net/ipv4/inet_timewait_sock.c:163 tcp_time_wait+0x55/0xb40 net/ipv4/tcp_minisocks.c:259 tcp_rcv_state_process+0x23c2/0x4d8f net/ipv4/tcp_input.c:6202 tcp_v4_do_rcv+0x351/0x8d0 net/ipv4/tcp_ipv4.c:1563 kobject: 'loop5' (00000000451904ef): kobject_uevent_env kobject: 'loop5' (00000000451904ef): fill_kobj_path: path = '/devices/virtual/block/loop5' sk_backlog_rcv include/net/sock.h:936 [inline] __release_sock+0x12e/0x3a0 net/core/sock.c:2284 tcp_close+0x6b9/0x10c0 net/ipv4/tcp.c:2418 inet_release+0x105/0x1f0 net/ipv4/af_inet.c:428 __sock_release+0xd3/0x250 net/socket.c:579 sock_close+0x1b/0x30 net/socket.c:1139 __fput+0x2df/0x8d0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411d31 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 94 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:0000000000a4fd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000009 RCX: 0000000000411d31 RDX: 0000000000000000 RSI: 00000000007424c0 RDI: 0000000000000008 RBP: 0000000000000000 R08: ffffffff8100a392 R09: 00000000ecafd202 R10: 0000000000a4fcc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000b9f R15: 0000000000000003 Modules linked in: ======================================================