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: 19704 Comm: syz-executor.4 Not tainted 5.2.0-rc7 #65 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 bc 6e e6 ff 4c 89 e3 48 83 eb 08 74 33 e8 ae 6e e6 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:ffff8880a3c27eb0 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bb277 RDX: 0000000000000000 RSI: ffffffff818a5492 RDI: dead000000000100 RBP: ffff8880a3c27ed0 R08: ffff888091afe240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000100 R13: dffffc0000000000 R14: ffff8880a3c27f58 R15: ffff888091afe240 FS: 0000555555d13940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009ac93000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_to_usermode_loop+0x1a4/0x2c0 arch/x86/entry/common.c:173 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4579c0 Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 91 ed 61 00 00 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 RSP: 002b:0000000000a6fd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: 0000000000000000 RBX: 00000000003776e4 RCX: 00000000004579c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a6fd60 RBP: 00000000000018be R08: 0000000000000001 R09: 0000555555d13940 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009 R13: 0000000000a6fdb0 R14: 00000000003773a5 R15: 0000000000a6fdc0 Modules linked in: ---[ end trace 7f99cdfc1d269a58 ]--- 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 bc 6e e6 ff 4c 89 e3 48 83 eb 08 74 33 e8 ae 6e e6 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:ffff8880a3c27eb0 EFLAGS: 00010a02 RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bb277 RDX: 0000000000000000 RSI: ffffffff818a5492 RDI: dead000000000100 RBP: ffff8880a3c27ed0 R08: ffff888091afe240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000100 R13: dffffc0000000000 R14: ffff8880a3c27f58 R15: ffff888091afe240 FS: 0000555555d13940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009ac93000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400