audit: type=1326 audit(2000003148.658:3): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=12799 comm="syz-executor1" exe="/root/syz-executor1" sig=9 arch=c000003e syscall=202 compat=0 ip=0x456a09 code=0x0 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 12809 Comm: syz-executor4 Not tainted 4.18.0-rc7+ #171 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:process_init_reply+0x536/0x1500 fs/fuse/inode.c:933 Code: 0f 85 fc 0e 00 00 4c 8b b3 68 02 00 00 e8 22 20 11 ff 49 8d be 30 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ba 0d 00 00 4d 8b b6 30 01 00 00 48 b8 00 00 00 RSP: 0018:ffff8801a91d7330 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff880193f58940 RCX: ffffc90005c23000 RDX: 0000000000000026 RSI: ffffffff826af77e RDI: 0000000000000130 RBP: ffff8801a91d7368 R08: ffff8801b11461c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff880197ac0c00 R13: ffff880193f58b29 R14: 0000000000000000 R15: ffff880193f58b25 FS: 00007ff87c935700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe93885900 CR3: 00000001d68c8000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: request_end+0x3de/0xb20 fs/fuse/dev.c:402 fuse_dev_do_write+0x194a/0x3700 fs/fuse/dev.c:1904 fuse_dev_write+0x19a/0x240 fs/fuse/dev.c:1928 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6c6/0x9f0 fs/read_write.c:487 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456a09 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff87c934c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff87c9356d4 RCX: 0000000000456a09 RDX: 0000000000000050 RSI: 0000000020000100 RDI: 0000000000000015 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5e48 R14: 00000000004c945d R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 9961fd66d6648fce ]--- RIP: 0010:process_init_reply+0x536/0x1500 fs/fuse/inode.c:933 Code: 0f 85 fc 0e 00 00 4c 8b b3 68 02 00 00 e8 22 20 11 ff 49 8d be 30 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ba 0d 00 00 4d 8b b6 30 01 00 00 48 b8 00 00 00 RSP: 0018:ffff8801a91d7330 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff880193f58940 RCX: ffffc90005c23000 PM: Marking nosave pages: [mem 0x00000000-0x00000fff] RDX: 0000000000000026 RSI: ffffffff826af77e RDI: 0000000000000130 RBP: ffff8801a91d7368 R08: ffff8801b11461c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff880197ac0c00 R13: ffff880193f58b29 R14: 0000000000000000 R15: ffff880193f58b25 PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] FS: 00007ff87c935700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 PM: Marking nosave pages: [mem 0xbfff3000-0xffffffff] CR2: 00007ffe93885900 CR3: 00000001d68c8000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 PM: Basic memory bitmaps created DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400