TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. BUG: TASK stack guard page was hit at ffffc90002507ff8 (stack is ffffc90002508000..ffffc90002510000) stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4159 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:kasan_check_range+0x16/0x180 mm/kasan/generic.c:188 Code: a8 01 48 0f 45 fa e8 09 83 ef ff 0f 0b 0f 1f 80 00 00 00 00 48 85 f6 0f 84 3c 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 <53> 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 RSP: 0018:ffffc90002508000 EFLAGS: 00010092 RAX: 0000000000000017 RBX: 1ffff920004a100a RCX: ffffffff815461df RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fb80b38 RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff8fb80b40 R10: 0000000000000001 R11: 00000000000005e6 R12: 0000000000000002 R13: ffff88807ab661b0 R14: 00000000000005e6 R15: ffff88807ab661d0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90002507ff8 CR3: 000000000ae8e000 CR4: 0000000000350ee0 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] hlock_class kernel/locking/lockdep.c:199 [inline] mark_lock+0xef/0x17b0 kernel/locking/lockdep.c:4583 mark_usage kernel/locking/lockdep.c:4514 [inline] __lock_acquire+0x844/0x54a0 kernel/locking/lockdep.c:4981 lock_acquire kernel/locking/lockdep.c:5637 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:354 [inline] lock_sock_nested+0x50/0xd0 net/core/sock.c:3288 lock_sock include/net/sock.h:1645 [inline] sock_map_close+0x69/0x530 net/core/sock_map.c:1500 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 sock_map_close+0x4a4/0x530 net/core/sock_map.c:1506 inet_release+0xef/0x210 net/ipv4/af_inet.c:427 __sock_release+0xbb/0x270 net/socket.c:649 sock_close+0xf/0x20 net/socket.c:1314 __fput+0x204/0x8d0 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xa47/0x25c0 kernel/exit.c:832 do_group_exit+0xe7/0x290 kernel/exit.c:929 get_signal+0x3b0/0x1ce0 kernel/signal.c:2830 arch_do_signal_or_restart+0x2b2/0x1720 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0x80 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff14e9af0a9 Code: Unable to access opcode bytes at RIP 0x7ff14e9af07f. RSP: 002b:00007ff14dd21168 EFLAGS: 00000246 ORIG_RAX: 0000000000000120 RAX: 0000000000000007 RBX: 00007ff14eacef80 RCX: 00007ff14e9af0a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ff14ea0aae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc74c87bf R14: 00007ff14dd21300 R15: 0000000000022000 Modules linked in: ---[ end trace 219eca27ba369356 ]--- RIP: 0010:kasan_check_range+0x16/0x180 mm/kasan/generic.c:188 Code: a8 01 48 0f 45 fa e8 09 83 ef ff 0f 0b 0f 1f 80 00 00 00 00 48 85 f6 0f 84 3c 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 <53> 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 RSP: 0018:ffffc90002508000 EFLAGS: 00010092 RAX: 0000000000000017 RBX: 1ffff920004a100a RCX: ffffffff815461df RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fb80b38 RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff8fb80b40 R10: 0000000000000001 R11: 00000000000005e6 R12: 0000000000000002 R13: ffff88807ab661b0 R14: 00000000000005e6 R15: ffff88807ab661d0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90002507ff8 CR3: 000000000ae8e000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: a8 01 test $0x1,%al 2: 48 0f 45 fa cmovne %rdx,%rdi 6: e8 09 83 ef ff callq 0xffef8314 b: 0f 0b ud2 d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 14: 48 85 f6 test %rsi,%rsi 17: 0f 84 3c 01 00 00 je 0x159 1d: 49 89 f9 mov %rdi,%r9 20: 41 54 push %r12 22: 44 0f b6 c2 movzbl %dl,%r8d 26: 49 01 f1 add %rsi,%r9 29: 55 push %rbp * 2a: 53 push %rbx <-- trapping instruction 2b: 0f 82 18 01 00 00 jb 0x149 31: 48 b8 ff ff ff ff ff movabs $0xffff7fffffffffff,%rax 38: 7f ff ff 3b: 48 39 c7 cmp %rax,%rdi 3e: 0f .byte 0xf 3f: 86 .byte 0x86