Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc56c092028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fc56b416090 RCX: 00007fc56b19c799 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000180 RBP: 00007fc56c092090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fc56b416128 R14: 00007fc56b416090 R15: 00007ffe31b7a1c8 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: 382 Comm: syz.2.19 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:992 [inline] RIP: 0010:fuse_file_put+0x14d/0x1820 fs/fuse/file.c:119 Code: 00 00 00 44 89 ee e8 d2 83 65 ff 41 83 fd 01 0f 85 44 01 00 00 4c 89 74 24 18 48 8b 44 24 48 4c 8d 68 28 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 4c 89 f9 74 12 4c 89 ef e8 01 b2 aa ff 48 b9 00 00 RSP: 0018:ffffc90001746f20 EFLAGS: 00010206 RAX: 0000000000000005 RBX: fffff520002e8df4 RCX: 0000000000000000 RDX: ffff88811658e540 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc900017472a0 R08: ffff888114a94a2b R09: 1ffff11022952945 R10: dffffc0000000000 R11: ffffed1022952946 R12: ffff888114a94a28 R13: 0000000000000028 R14: ffff888114a94a00 R15: dffffc0000000000 FS: 00007fc56c0926c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc56c091ff8 CR3: 00000001159b5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_sync_release+0x84/0xb0 fs/fuse/file.c:400 fuse_create_open+0x1475/0x2260 fs/fuse/dir.c:848 fuse_atomic_open+0x245/0x3c0 fs/fuse/dir.c:910 atomic_open fs/namei.c:3352 [inline] lookup_open fs/namei.c:3460 [inline] open_last_lookups fs/namei.c:3557 [inline] path_openat+0xe57/0x2f80 fs/namei.c:3787 do_filp_open+0x1f1/0x430 fs/namei.c:3817 do_sys_openat2+0x15e/0x810 fs/open.c:1343 do_sys_open fs/open.c:1359 [inline] __do_sys_creat fs/open.c:1437 [inline] __se_sys_creat fs/open.c:1431 [inline] __x64_sys_creat+0x8e/0xb0 fs/open.c:1431 x64_sys_call+0x116/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:86 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc56b19c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc56c092028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fc56b416090 RCX: 00007fc56b19c799 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000180 RBP: 00007fc56c092090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fc56b416128 R14: 00007fc56b416090 R15: 00007ffe31b7a1c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:992 [inline] RIP: 0010:fuse_file_put+0x14d/0x1820 fs/fuse/file.c:119 Code: 00 00 00 44 89 ee e8 d2 83 65 ff 41 83 fd 01 0f 85 44 01 00 00 4c 89 74 24 18 48 8b 44 24 48 4c 8d 68 28 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 4c 89 f9 74 12 4c 89 ef e8 01 b2 aa ff 48 b9 00 00 RSP: 0018:ffffc90001746f20 EFLAGS: 00010206 RAX: 0000000000000005 RBX: fffff520002e8df4 RCX: 0000000000000000 RDX: ffff88811658e540 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc900017472a0 R08: ffff888114a94a2b R09: 1ffff11022952945 R10: dffffc0000000000 R11: ffffed1022952946 R12: ffff888114a94a28 R13: 0000000000000028 R14: ffff888114a94a00 R15: dffffc0000000000 FS: 00007fc56c0926c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc56c091ff8 CR3: 00000001159b5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 e8 ff ff ff mov $0xffffffffffffffe8,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W