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: 0 PID: 9414 Comm: syz-executor.1 Not tainted 5.5.0-rc2-next-20191219-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x1254/0x4a00 kernel/locking/lockdep.c:3828 Code: 00 0f 85 96 24 00 00 48 81 c4 f0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 0b 28 00 00 49 81 3e a0 59 bc 8a 0f 84 5f ee ff RSP: 0018:ffffc90002187a18 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90002187b30 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1502c90 R11: ffff888080d92080 R12: 0000000000000018 R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000001 FS: 00007f5e56912700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000a70d4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:159 prepare_to_wait+0x7c/0x300 kernel/sched/wait.c:244 nr_accept+0x23c/0x760 net/netrom/af_netrom.c:771 __sys_accept4_file+0x3be/0x5e0 net/socket.c:1757 __sys_accept4+0x5a/0xa0 net/socket.c:1808 __do_sys_accept net/socket.c:1826 [inline] __se_sys_accept net/socket.c:1823 [inline] __x64_sys_accept+0x75/0xb0 net/socket.c:1823 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a919 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5e56911c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e569126d4 R13: 00000000004c09e3 R14: 00000000004d4320 R15: 00000000ffffffff Modules linked in: ---[ end trace a5485668ce5ceebc ]--- RIP: 0010:__lock_acquire+0x1254/0x4a00 kernel/locking/lockdep.c:3828 Code: 00 0f 85 96 24 00 00 48 81 c4 f0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 0b 28 00 00 49 81 3e a0 59 bc 8a 0f 84 5f ee ff RSP: 0018:ffffc90002187a18 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90002187b30 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1502c90 R11: ffff888080d92080 R12: 0000000000000018 R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000001 FS: 00007f5e56912700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000a70d4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400