RBP: 00007f14ebb5f3f0 R08: 00007f14eba69fa6 R09: 0000000000003331
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14ebb2c27c
R13: 00007f14eba6a210 R14: 0000000000000002 R15: 0030656c69662f2e
</TASK>
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: 301 Comm: syz-executor380 Not tainted 6.1.75-syzkaller-00037-gdcb09569bbff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:989 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2580 fs/fuse/file.c:119
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 4d f4 5e 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 47 d1 a5 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc90000eb6e80 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff8881097a1440 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000eb7220 R08: ffffffff82166d83 R09: ffffed1020173506
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff888100b9a800 R15: ffff888100b9a828
FS: 00007f14eba6a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f14ebb21a98 CR3: 000000012271a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
fuse_sync_release+0x81/0xb0 fs/fuse/file.c:400
fuse_create_open+0x1d3f/0x37b0 fs/fuse/dir.c:825
fuse_atomic_open+0x22e/0x3a0 fs/fuse/dir.c:887
atomic_open fs/namei.c:3352 [inline]
lookup_open fs/namei.c:3460 [inline]
open_last_lookups fs/namei.c:3557 [inline]
path_openat+0xf52/0x2d60 fs/namei.c:3787
do_filp_open+0x230/0x480 fs/namei.c:3817
do_sys_openat2+0x13f/0x850 fs/open.c:1341
do_sys_open fs/open.c:1357 [inline]
__do_sys_open fs/open.c:1365 [inline]
__se_sys_open fs/open.c:1361 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1361
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f14ebace1c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 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:00007f14eba6a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f14ebb5f3f8 RCX: 00007f14ebace1c9
RDX: 0000000000000000 RSI: 0000000004008040 RDI: 0000000020000200
RBP: 00007f14ebb5f3f0 R08: 00007f14eba69fa6 R09: 0000000000003331
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14ebb2c27c
R13: 00007f14eba6a210 R14: 0000000000000002 R15: 0030656c69662f2e
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:989 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2580 fs/fuse/file.c:119
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 4d f4 5e 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 47 d1 a5 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc90000eb6e80 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff8881097a1440 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000eb7220 R08: ffffffff82166d83 R09: ffffed1020173506
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff888100b9a800 R15: ffff888100b9a828
FS: 00007f14eba6a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055827cc89038 CR3: 000000012271a000 CR4: 00000000003506b0
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 4d f4 5e ff call 0xff5ef45f
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 47 d1 a5 ff call 0xffa5d17f
38: 4c 8d bc 24 c0 00 00 lea 0xc0(%rsp),%r15
3f: 00