RBP: 00007f051c2161d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffffba1ed4f R14: 00007f051c216300 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: 369 Comm: syz-executor.0 Not tainted 6.1.25-syzkaller #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+0x10a/0x1eb0 fs/fuse/file.c:119 Code: f8 01 0f 85 62 03 00 00 4c 89 6c 24 70 4c 89 7c 24 40 48 89 9c 24 98 00 00 00 48 8b 44 24 48 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 c7 f4 b1 ff 4c 8d bc 24 c0 00 00 RSP: 0018:ffffc90000e26ea0 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffffffff81f26ac4 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881104fe828 RBP: ffffc90000e27240 R08: dffffc0000000000 R09: ffffed102209fd06 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881104ff000 R14: ffff8881104fe828 R15: ffff8881104fe800 FS: 00007f051c216700(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001140 CR3: 00000001105cf000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_sync_release+0x6a/0x90 fs/fuse/file.c:400 fuse_create_open+0x211d/0x2de0 fs/fuse/dir.c:813 fuse_atomic_open+0x207/0x370 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+0xd72/0x2450 fs/namei.c:3711 do_filp_open+0x226/0x430 fs/namei.c:3741 do_sys_openat2+0x103/0x6c0 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+0x11a/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: 0033:0x7f051b48c389 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:00007f051c216168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f051b5abf80 RCX: 00007f051b48c389 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0 RBP: 00007f051c2161d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffffba1ed4f R14: 00007f051c216300 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+0x10a/0x1eb0 fs/fuse/file.c:119 Code: f8 01 0f 85 62 03 00 00 4c 89 6c 24 70 4c 89 7c 24 40 48 89 9c 24 98 00 00 00 48 8b 44 24 48 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 c7 f4 b1 ff 4c 8d bc 24 c0 00 00 RSP: 0018:ffffc90000e26ea0 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffffffff81f26ac4 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881104fe828 RBP: ffffc90000e27240 R08: dffffc0000000000 R09: ffffed102209fd06 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881104ff000 R14: ffff8881104fe828 R15: ffff8881104fe800 FS: 00007f051c216700(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001140 CR3: 00000001105cf000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: f8 clc 1: 01 0f add %ecx,(%rdi) 3: 85 62 03 test %esp,0x3(%rdx) 6: 00 00 add %al,(%rax) 8: 4c 89 6c 24 70 mov %r13,0x70(%rsp) d: 4c 89 7c 24 40 mov %r15,0x40(%rsp) 12: 48 89 9c 24 98 00 00 mov %rbx,0x98(%rsp) 19: 00 1a: 48 8b 44 24 48 mov 0x48(%rsp),%rax 1f: 48 8d 58 28 lea 0x28(%rax),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 c7 f4 b1 ff callq 0xffb1f500 39: 4c rex.WR 3a: 8d .byte 0x8d 3b: bc 24 c0 00 00 mov $0xc024,%esp