Hello, syzbot found the following issue on: HEAD commit: 62e6e5940c0c Merge tag 'scsi-misc' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14595c78880000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c13637ccca17699 dashboard link: https://syzkaller.appspot.com/bug?extid=a8f26a403c169b7593fe compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b4f4f04cf38f/disk-62e6e594.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/dfb013b64867/vmlinux-62e6e594.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a8f26a403c169b7593fe@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 13342 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-07362-g62e6e5940c0c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline] RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796 Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ea c0 ea ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 c4 c0 ea ff 48 83 3b 00 0f 85 b7 01 RSP: 0018:ffffc90008b97870 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: ffff88807e593b00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888030aa6232 R08: ffffffff81ef71d9 R09: ffff888075fb02a0 R10: ffffed100ebf6056 R11: 1ffff1100ebf6054 R12: 0000000000000008 R13: 1ffff11006154c46 R14: ffff888075fb0178 R15: 0000000000008000 FS: 00007f9fb9bfe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9fbadad0b0 CR3: 00000000753d7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> d_splice_alias+0x122/0x3b0 fs/dcache.c:3191 lookup_open fs/namei.c:3391 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x10e6/0x2df0 fs/namei.c:3688 do_filp_open+0x264/0x4f0 fs/namei.c:3718 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_open fs/open.c:1334 [inline] __se_sys_open fs/open.c:1330 [inline] __x64_sys_open+0x221/0x270 fs/open.c:1330 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9fbac8a5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9fb9bfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f9fbadabf80 RCX: 00007f9fbac8a5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f9fbace5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd04dd2b0f R14: 00007f9fb9bfe300 R15: 0000000000022000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline] RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796 Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ea c0 ea ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 c4 c0 ea ff 48 83 3b 00 0f 85 b7 01 RSP: 0018:ffffc90008b97870 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: ffff88807e593b00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888030aa6232 R08: ffffffff81ef71d9 R09: ffff888075fb02a0 R10: ffffed100ebf6056 R11: 1ffff1100ebf6054 R12: 0000000000000008 R13: 1ffff11006154c46 R14: ffff888075fb0178 R15: 0000000000008000 FS: 00007f9fb9bfe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9fbadad0b0 CR3: 00000000753d7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) 4: 74 08 je 0xe 6: 48 89 df mov %rbx,%rdi 9: e8 ea c0 ea ff callq 0xffeac0f8 e: 48 8b 1b mov (%rbx),%rbx 11: 48 83 c3 08 add $0x8,%rbx 15: 48 89 d8 mov %rbx,%rax 18: 48 c1 e8 03 shr $0x3,%rax 1c: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 23: fc ff df * 26: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2a: 74 08 je 0x34 2c: 48 89 df mov %rbx,%rdi 2f: e8 c4 c0 ea ff callq 0xffeac0f8 34: 48 83 3b 00 cmpq $0x0,(%rbx) 38: 0f .byte 0xf 39: 85 .byte 0x85 3a: b7 01 mov $0x1,%bh --- This report is generated by a bot. 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