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: 1 PID: 7445 Comm: syz-executor0 Not tainted 5.0.0-rc5-next-20190208 #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x956/0x4790 kernel/locking/lockdep.c:3197 Code: 28 00 00 00 0f 85 7d 26 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 36 27 00 00 49 81 3b 20 e5 9a 89 0f 84 8d f7 ff RSP: 0018:ffff888076dcf970 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff888076dcfb40 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000018 R12: ffff888033dd40c0 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f7d49f76700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe5c8462db8 CR3: 00000000707dc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3826 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 prepare_to_wait+0x7c/0x300 kernel/sched/wait.c:230 nr_accept+0x239/0x790 net/netrom/af_netrom.c:796 __sys_accept4+0x350/0x6a0 net/socket.c:1610 __do_sys_accept net/socket.c:1651 [inline] __se_sys_accept net/socket.c:1648 [inline] __x64_sys_accept+0x75/0xb0 net/socket.c:1648 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7d49f75c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7d49f766d4 R13: 00000000004bdc10 R14: 00000000004cdea0 R15: 00000000ffffffff Modules linked in: ---[ end trace 46039fbc2a78b566 ]--- RIP: 0010:__lock_acquire+0x956/0x4790 kernel/locking/lockdep.c:3197 Code: 28 00 00 00 0f 85 7d 26 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 36 27 00 00 49 81 3b 20 e5 9a 89 0f 84 8d f7 ff RSP: 0018:ffff888076dcf970 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff888076dcfb40 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000018 R12: ffff888033dd40c0 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f7d49f76700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe5c8462db8 CR3: 00000000707dc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400