PANIC: double fault, error_code: 0x0 ================================================================== CPU: 0 PID: 10117 Comm: syz-executor7 Not tainted 4.18.0-rc3+ #55 BUG: KASAN: stack-out-of-bounds in debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] BUG: KASAN: stack-out-of-bounds in do_raw_spin_lock+0x1c0/0x200 kernel/locking/spinlock_debug.c:112 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 4 at addr ffff88019b92614c by task syz-executor5/4481 RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294 Code: 41 57 CPU: 1 PID: 4481 Comm: syz-executor5 Not tainted 4.18.0-rc3+ #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 41 89 Call Trace: cf __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 41 56 41 55 49 89 fd print_address_description+0x6c/0x20b mm/kasan/report.c:256 41 54 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 45 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432 89 cc debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] do_raw_spin_lock+0x1c0/0x200 kernel/locking/spinlock_debug.c:112 53 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:168 65 4c 8b spin_lock_bh include/linux/spinlock.h:315 [inline] lock_sock_nested+0x46/0x120 net/core/sock.c:2877 34 25 lock_sock include/net/sock.h:1491 [inline] tcp_close+0x83/0x12d0 net/ipv4/tcp.c:2324 40 ee 01 00 48 83 e4 f0 inet_release+0x104/0x1f0 net/ipv4/af_inet.c:428 48 81 __sock_release+0xd7/0x260 net/socket.c:599 ec 60 03 00 sock_close+0x19/0x20 net/socket.c:1150 00 48 __fput+0x355/0x8b0 fs/file_table.c:209 8b 45 10 <89> 94 24 ____fput+0x15/0x20 fs/file_table.c:243 80 task_work_run+0x1ec/0x2a0 kernel/task_work.c:113 00 00 00 tracehook_notify_resume include/linux/tracehook.h:192 [inline] exit_to_usermode_loop+0x313/0x370 arch/x86/entry/common.c:166 48 ba 00 00 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 00 00 00 fc ff df 48 89 entry_SYSCALL_64_after_hwframe+0x49/0xbe 84 RIP: 0033:0x40fb70 24 Code: 98 01 f0 RSP: 0018:ffff88019b3b3e90 EFLAGS: 00010086 ff ff RAX: 0000000000000000 RBX: 1ffff1003367684f RCX: 0000000000000002 0f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620 83 RBP: ffff88019b3b4220 R08: 0000000000000000 R09: 0000000000000000 60 R10: ffff88019c1d7be0 R11: ffff8801981e2ebb R12: 0000000000000000 19 R13: ffffffff88f92620 R14: ffff8801981e2740 R15: 0000000000000002 00 FS: 00000000020fe940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 00 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 c3 CR2: ffff88019b3b3e88 CR3: 00000001ca16d000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 00000000200001c0 DR2: 0000000000000000 66 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 2e Call Trace: 0f