TCP: request_sock_TCPv6: Possible SYN flooding on port [::]:20002. Sending cookies. BUG: TASK stack guard page was hit at ffffc900039f7fe8 (stack is ffffc900039f8000..ffffc90003a00000) stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5063 Comm: syz-executor123 Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:mark_lock.part.0+0x26/0x1910 kernel/locking/lockdep.c:4593 Code: 00 00 00 00 41 57 41 56 41 55 41 89 d5 48 ba 00 00 00 00 00 fc ff df 41 54 49 89 f4 55 53 48 81 ec 38 01 00 00 48 8d 5c 24 38 <48> 89 3c 24 48 c7 44 24 38 b3 8a b5 41 48 c1 eb 03 48 c7 44 24 40 RSP: 0018:ffffc900039f7ff8 EFLAGS: 00010092 RAX: 0000000000000004 RBX: ffffc900039f8030 RCX: ffffffff816393a0 RDX: dffffc0000000000 RSI: ffff888023928a60 RDI: ffff888023928000 RBP: ffff888023928a82 R08: 0000000000000000 R09: ffffffff91336b5f R10: fffffbfff2266d6b R11: 0000000000000000 R12: ffff888023928a60 R13: 0000000000000002 R14: ffff888023928a38 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900039f7fe8 CR3: 000000000c48e000 CR4: 0000000000350ef0 Call Trace: mark_lock kernel/locking/lockdep.c:4598 [inline] mark_usage kernel/locking/lockdep.c:4543 [inline] __lock_acquire+0x847/0x56d0 kernel/locking/lockdep.c:5009 reacquire_held_locks+0x214/0x4e0 kernel/locking/lockdep.c:5193 __lock_release kernel/locking/lockdep.c:5382 [inline] lock_release+0x371/0x810 kernel/locking/lockdep.c:5688 sock_release_ownership include/net/sock.h:1833 [inline] release_sock+0x175/0x1b0 net/core/sock.c:3493 sock_map_close+0x694/0x7b0 net/core/sock_map.c:1617 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 sock_map_close+0x6dc/0x7b0 net/core/sock_map.c:1618 inet_release+0x132/0x270 net/ipv4/af_inet.c:428 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:489 __sock_release+0xcd/0x280 net/socket.c:650 sock_close+0x1c/0x20 net/socket.c:1365 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xaa8/0x2950 kernel/exit.c:867 do_group_exit+0xd4/0x2a0 kernel/exit.c:1012 get_signal+0x21c3/0x2450 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f07f35a40b9 Code: Unable to access opcode bytes at 0x7f07f35a408f. RSP: 002b:00007fff963108c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000120 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 00007f07f35a40b9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fff96310a68 R09: 00007fff96310a68 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07f3567940 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mark_lock.part.0+0x26/0x1910 kernel/locking/lockdep.c:4593 Code: 00 00 00 00 41 57 41 56 41 55 41 89 d5 48 ba 00 00 00 00 00 fc ff df 41 54 49 89 f4 55 53 48 81 ec 38 01 00 00 48 8d 5c 24 38 <48> 89 3c 24 48 c7 44 24 38 b3 8a b5 41 48 c1 eb 03 48 c7 44 24 40 RSP: 0018:ffffc900039f7ff8 EFLAGS: 00010092 RAX: 0000000000000004 RBX: ffffc900039f8030 RCX: ffffffff816393a0 RDX: dffffc0000000000 RSI: ffff888023928a60 RDI: ffff888023928000 RBP: ffff888023928a82 R08: 0000000000000000 R09: ffffffff91336b5f R10: fffffbfff2266d6b R11: 0000000000000000 R12: ffff888023928a60 R13: 0000000000000002 R14: ffff888023928a38 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900039f7fe8 CR3: 000000000c48e000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 41 57 push %r15 6: 41 56 push %r14 8: 41 55 push %r13 a: 41 89 d5 mov %edx,%r13d d: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 14: fc ff df 17: 41 54 push %r12 19: 49 89 f4 mov %rsi,%r12 1c: 55 push %rbp 1d: 53 push %rbx 1e: 48 81 ec 38 01 00 00 sub $0x138,%rsp 25: 48 8d 5c 24 38 lea 0x38(%rsp),%rbx * 2a: 48 89 3c 24 mov %rdi,(%rsp) <-- trapping instruction 2e: 48 c7 44 24 38 b3 8a movq $0x41b58ab3,0x38(%rsp) 35: b5 41 37: 48 c1 eb 03 shr $0x3,%rbx 3b: 48 rex.W 3c: c7 .byte 0xc7 3d: 44 24 40 rex.R and $0x40,%al