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: 31738 Comm: syz-executor.3 Not tainted 5.3.0-rc7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fire_user_return_notifiers+0xad/0x150 kernel/user-return-notifier.c:42 Code: 00 00 00 00 00 fc ff df 75 10 eb 41 e8 5c 65 e5 ff 4c 89 e3 48 83 eb 08 74 33 e8 4e 65 e5 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 69 48 89 d8 4c 8b 63 08 48 c1 e8 03 42 80 3c 28 RSP: 0018:ffff888095347eb0 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bde87 RDX: 0000000000000000 RSI: ffffffff818d1002 RDI: dead000000000100 RBP: ffff888095347ed0 R08: ffff8880534ac640 R09: ffffed100a6958c9 R10: ffffed100a6958c8 R11: ffff8880534ac647 R12: dead000000000100 R13: dffffc0000000000 R14: ffff888095347f58 R15: ffff8880534ac640 FS: 0000555555fdb940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000099a6f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_to_usermode_loop+0x1a4/0x380 arch/x86/entry/common.c:168 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x5a9/0x6a0 arch/x86/entry/common.c:299 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457d41 Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 d3 fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffd9e2cad90 EFLAGS: 00000293 ORIG_RAX: 0000000000000023 RAX: 0000000000000000 RBX: 000000000018b2a0 RCX: 0000000000457d41 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd9e2cada0 RBP: 0000000000000001 R08: ffffffffffffffff R09: ffffffffffffffff R10: 00007ffd9e2cae90 R11: 0000000000000293 R12: 000000000075bf20 R13: 000000000075c9a0 R14: 00000000007605c8 R15: ffffffffffffffff Modules linked in: ---[ end trace 7011829876e89a62 ]--- RIP: 0010:fire_user_return_notifiers+0xad/0x150 kernel/user-return-notifier.c:42 Code: 00 00 00 00 00 fc ff df 75 10 eb 41 e8 5c 65 e5 ff 4c 89 e3 48 83 eb 08 74 33 e8 4e 65 e5 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 69 48 89 d8 4c 8b 63 08 48 c1 e8 03 42 80 3c 28 RSP: 0018:ffff888095347eb0 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bde87 RDX: 0000000000000000 RSI: ffffffff818d1002 RDI: dead000000000100 RBP: ffff888095347ed0 R08: ffff8880534ac640 R09: ffffed100a6958c9 R10: ffffed100a6958c8 R11: ffff8880534ac647 R12: dead000000000100 R13: dffffc0000000000 R14: ffff888095347f58 R15: ffff8880534ac640 FS: 0000555555fdb940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000099a6f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400