RBP: 00007f1fbf1ff1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd78c5464f R14: 00007f1fbf1ff300 R15: 0000000000022000 general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] CPU: 1 PID: 17159 Comm: syz-executor.0 Not tainted 6.1.25-syzkaller-00155-ged2a228522b9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:965 [inline] RIP: 0010:fuse_file_put+0x11d/0x2420 fs/fuse/file.c:119 Code: 01 00 00 00 89 de e8 02 0d 60 ff 83 fb 01 0f 85 ee 00 00 00 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 65 25 a6 ff 4c 8d bc 24 c0 00 00 00 RSP: 0018:ffffc9000d476ea0 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff88811c72d100 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc9000d477240 R08: ffffffff8214db2e R09: ffffed1024128486 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000028 R14: ffff888120942400 R15: ffff888120942428 FS: 00007f1fbf1ff700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555616728 CR3: 0000000131d4c000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_sync_release+0x81/0xb0 fs/fuse/file.c:400 fuse_create_open+0x1bd3/0x3480 fs/fuse/dir.c:813 fuse_atomic_open+0x22e/0x3a0 fs/fuse/dir.c:875 atomic_open fs/namei.c:3276 [inline] lookup_open fs/namei.c:3384 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0xf52/0x2d60 fs/namei.c:3711 do_filp_open+0x230/0x480 fs/namei.c:3741 do_sys_openat2+0x13f/0x850 fs/open.c:1333 do_sys_open fs/open.c:1349 [inline] __do_sys_creat fs/open.c:1425 [inline] __se_sys_creat fs/open.c:1419 [inline] __x64_sys_creat+0x11f/0x160 fs/open.c:1419 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: 0033:0x7f1fbfe8c389 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1fbf1ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f1fbffabf80 RCX: 00007f1fbfe8c389 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0 RBP: 00007f1fbf1ff1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd78c5464f R14: 00007f1fbf1ff300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:965 [inline] RIP: 0010:fuse_file_put+0x11d/0x2420 fs/fuse/file.c:119 Code: 01 00 00 00 89 de e8 02 0d 60 ff 83 fb 01 0f 85 ee 00 00 00 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 65 25 a6 ff 4c 8d bc 24 c0 00 00 00 RSP: 0018:ffffc9000d476ea0 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff88811c72d100 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc9000d477240 R08: ffffffff8214db2e R09: ffffed1024128486 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000028 R14: ffff888120942400 R15: ffff888120942428 FS: 00007f1fbf1ff700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2d9d586058 CR3: 0000000131d4c000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 01 00 add %eax,(%rax) 2: 00 00 add %al,(%rax) 4: 89 de mov %ebx,%esi 6: e8 02 0d 60 ff callq 0xff600d0d b: 83 fb 01 cmp $0x1,%ebx e: 0f 85 ee 00 00 00 jne 0x102 14: 4d 8d 6c 24 28 lea 0x28(%r12),%r13 19: 4c 89 e8 mov %r13,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ef mov %r13,%rdi 33: e8 65 25 a6 ff callq 0xffa6259d 38: 4c 8d bc 24 c0 00 00 lea 0xc0(%rsp),%r15 3f: 00