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: 21962 Comm: syz-executor753 Not tainted 4.19.0-next-20181102+ #104 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:delayed_uprobe_remove+0x6f/0x140 kernel/events/uprobes.c:339 Code: 00 00 00 48 81 fb c0 f8 5f 89 4c 8b 23 49 bd 00 00 00 00 00 fc ff df 75 2f e9 98 00 00 00 e8 78 1d e5 ff 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 0f 85 91 00 00 00 49 81 fc c0 f8 5f 89 49 8b 04 24 RSP: 0018:ffff8801cc56f178 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: ffff8801c1fece00 RCX: 1ffff1003b2001f4 RDX: 0000000000000000 RSI: ffffffff819a4af8 RDI: ffff8801c1fece18 RBP: ffff8801cc56f1a0 R08: ffff8801d9000fa0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9000700 R12: dead000000000100 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8801bb484ec0 FS: 00007fcaad5a4700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcaad5a3e78 CR3: 00000001d392f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: uprobe_clear_state+0xbe/0x390 kernel/events/uprobes.c:1510 __mmput kernel/fork.c:1041 [inline] mmput+0x1bc/0x610 kernel/fork.c:1066 exit_mm kernel/exit.c:545 [inline] do_exit+0xe74/0x26d0 kernel/exit.c:854 do_group_exit+0x177/0x440 kernel/exit.c:970 get_signal+0x8a8/0x1970 kernel/signal.c:2517 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162 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 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4469c9 Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 4b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcaad5a3db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00000000006dcc38 RCX: 00000000004469c9 RDX: 00000000004469c9 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000006dcc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc3c R13: 00007ffc9cc8172f R14: 00007fcaad5a49c0 R15: 00000000006dcd2c Modules linked in: ---[ end trace b0de3a2925ef8954 ]--- RIP: 0010:delayed_uprobe_remove+0x6f/0x140 kernel/events/uprobes.c:339 Code: 00 00 00 48 81 fb c0 f8 5f 89 4c 8b 23 49 bd 00 00 00 00 00 fc ff df 75 2f e9 98 00 00 00 e8 78 1d e5 ff 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 0f 85 91 00 00 00 49 81 fc c0 f8 5f 89 49 8b 04 24 RSP: 0018:ffff8801cc56f178 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: ffff8801c1fece00 RCX: 1ffff1003b2001f4 RDX: 0000000000000000 RSI: ffffffff819a4af8 RDI: ffff8801c1fece18 RBP: ffff8801cc56f1a0 R08: ffff8801d9000fa0 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d9000700 R12: dead000000000100 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8801bb484ec0 FS: 00007fcaad5a4700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000154c000 CR3: 00000001d4590000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400