RSP: 002b:00007fdbc3af2208 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fdbc3be1418 RCX: 00007fdbc3b5a899
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007fdbc3be1410 R08: 00007fdbc3af1fa6 R09: 0000000000003331
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdbc3bae344
R13: 00007fdbc3af2210 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: 376 Comm: syz-executor128 Not tainted 5.10.231-syzkaller-00700-g4055d754db6f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2420 fs/fuse/file.c:125
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 2d 78 6b ff 83 fb 01 0f 85 e4 00 00 00 4c 89 e9 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 ef e8 d7 0f a9 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc90000b56f40 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff88811d10cf00 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000b572e0 R08: ffffffff81ff4a03 R09: ffffed1021bdae86
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff88810ded7400 R15: ffff88810ded7428
FS: 00007fdbc3af26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020009000 CR3: 000000010adb2000 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:801 [inline]
fuse_atomic_open+0x2914/0x34e0 fs/fuse/dir.c:862
atomic_open fs/namei.c:3114 [inline]
lookup_open fs/namei.c:3219 [inline]
open_last_lookups fs/namei.c:3317 [inline]
path_openat+0xff0/0x3000 fs/namei.c:3506
do_filp_open+0x21c/0x460 fs/namei.c:3536
do_sys_openat2+0x13f/0x710 fs/open.c:1217
do_sys_open fs/open.c:1233 [inline]
__do_sys_creat fs/open.c:1309 [inline]
__se_sys_creat fs/open.c:1303 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1303
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fdbc3b5a899
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 1b 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:00007fdbc3af2208 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fdbc3be1418 RCX: 00007fdbc3b5a899
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007fdbc3be1410 R08: 00007fdbc3af1fa6 R09: 0000000000003331
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdbc3bae344
R13: 00007fdbc3af2210 R14: 0000000000000002 R15: 2f30656c69662f2e
Modules linked in:
---[ end trace 4863381ce0ac8e40 ]---
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2420 fs/fuse/file.c:125
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 2d 78 6b ff 83 fb 01 0f 85 e4 00 00 00 4c 89 e9 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 ef e8 d7 0f a9 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc90000b56f40 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff88811d10cf00 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000b572e0 R08: ffffffff81ff4a03 R09: ffffed1021bdae86
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff88810ded7400 R15: ffff88810ded7428
FS: 00007fdbc3af26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c3882f7088 CR3: 000000010adb2000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: f0 41 0f c1 5e 28 lock xadd %ebx,0x28(%r14)
6: bf 01 00 00 00 mov $0x1,%edi
b: 89 de mov %ebx,%esi
d: e8 2d 78 6b ff call 0xff6b783f
12: 83 fb 01 cmp $0x1,%ebx
15: 0f 85 e4 00 00 00 jne 0xff
1b: 4c 89 e9 mov %r13,%rcx
1e: 4d 8d 6c 24 28 lea 0x28(%r12),%r13
23: 4c 89 e8 mov %r13,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 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 d7 0f a9 ff call 0xffa9100f
38: 4c 8d bc 24 c0 00 00 lea 0xc0(%rsp),%r15
3f: 00