RBP: 00007fd141a04400 R08: 00007fd1418f3fa6 R09: 0000000000003331 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1419d122c R13: 00007fd1418f4210 R14: 0000000000000002 R15: 2f30656c69662f2e 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: 303 Comm: syz-executor401 Not tainted 5.10.187-syzkaller-00057-g8a427269c016 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:927 [inline] RIP: 0010:fuse_file_put+0x11d/0x2310 fs/fuse/file.c:125 Code: 01 00 00 00 89 de e8 e2 79 6c 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 d5 a4 a9 ff 4c 8d bc 24 c0 00 00 00 RSP: 0018:ffffc90000c16f00 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff88811e7ca780 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000c172a0 R08: ffffffff81fe176e R09: ffffed1023cd4906 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000028 R14: ffff88811e6a4800 R15: ffff88811e6a4828 FS: 00007fd1418f46c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd1418f3fe8 CR3: 000000011e50d000 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:393 fuse_create_open fs/fuse/dir.c:794 [inline] fuse_atomic_open+0x26d7/0x31a0 fs/fuse/dir.c:855 atomic_open fs/namei.c:3120 [inline] lookup_open fs/namei.c:3225 [inline] open_last_lookups fs/namei.c:3323 [inline] path_openat+0xff0/0x3000 fs/namei.c:3512 do_filp_open+0x21c/0x460 fs/namei.c:3542 do_sys_openat2+0x13f/0x6f0 fs/open.c:1217 do_sys_open fs/open.c:1233 [inline] __do_sys_openat fs/open.c:1249 [inline] __se_sys_openat fs/open.c:1244 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1244 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7fd141975fa9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd1418f4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd141a04408 RCX: 00007fd141975fa9 RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c RBP: 00007fd141a04400 R08: 00007fd1418f3fa6 R09: 0000000000003331 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1419d122c R13: 00007fd1418f4210 R14: 0000000000000002 R15: 2f30656c69662f2e Modules linked in: ---[ end trace 4a710b76a10e457f ]--- RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:927 [inline] RIP: 0010:fuse_file_put+0x11d/0x2310 fs/fuse/file.c:125 Code: 01 00 00 00 89 de e8 e2 79 6c 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 d5 a4 a9 ff 4c 8d bc 24 c0 00 00 00 RSP: 0018:ffffc90000c16f00 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff88811e7ca780 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000c172a0 R08: ffffffff81fe176e R09: ffffed1023cd4906 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000028 R14: ffff88811e6a4800 R15: ffff88811e6a4828 FS: 00007fd1418f46c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd1419cc638 CR3: 000000011e50d000 CR4: 00000000003506b0 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 e2 79 6c ff call 0xff6c79ed 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 d5 a4 a9 ff call 0xffa9a50d 38: 4c 8d bc 24 c0 00 00 lea 0xc0(%rsp),%r15 3f: 00