XFS (loop0): Quotacheck: Done. general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 18148 Comm: syz-executor.0 Not tainted 6.2.0-rc1-syzkaller-00095-ge4cf7c25bae5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:xfs_free_extent_fix_freelist fs/xfs/libxfs/xfs_alloc.c:3358 [inline] RIP: 0010:__xfs_free_extent+0x1f5/0x600 fs/xfs/libxfs/xfs_alloc.c:3407 Code: 00 74 05 e8 8d ab cb fe 4c 89 ac 24 88 00 00 00 4c 89 7c 24 08 49 8d 5f 08 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 8a 04 38 84 c0 0f 85 02 03 00 00 44 8b 23 4c 8d b4 24 80 00 00 RSP: 0018:ffffc90005c97580 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90005c97608 RBP: ffffc90005c97730 R08: dffffc0000000000 R09: ffffc90005c97610 R10: fffff52000b92ed2 R11: 1ffff92000b92ec2 R12: 1ffff11003924353 R13: ffff88802e55e000 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007fe86e65b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32524000 CR3: 000000007710b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xfs_free_extent fs/xfs/libxfs/xfs_alloc.h:147 [inline] xfs_ag_extend_space+0x365/0x5a0 fs/xfs/libxfs/xfs_ag.c:985 xfs_growfs_data_private fs/xfs/xfs_fsops.c:151 [inline] xfs_growfs_data+0x959/0x10e0 fs/xfs/xfs_fsops.c:294 xfs_file_ioctl+0xf7f/0x1320 fs/xfs/xfs_ioctl.c:2064 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 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: 0033:0x7fe86d88c0a9 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:00007fe86e65b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe86d9abf80 RCX: 00007fe86d88c0a9 RDX: 00000000200000c0 RSI: 000000004010586e RDI: 0000000000000004 RBP: 00007fe86d8e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe10ad3c5f R14: 00007fe86e65b300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:xfs_free_extent_fix_freelist fs/xfs/libxfs/xfs_alloc.c:3358 [inline] RIP: 0010:__xfs_free_extent+0x1f5/0x600 fs/xfs/libxfs/xfs_alloc.c:3407 Code: 00 74 05 e8 8d ab cb fe 4c 89 ac 24 88 00 00 00 4c 89 7c 24 08 49 8d 5f 08 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 8a 04 38 84 c0 0f 85 02 03 00 00 44 8b 23 4c 8d b4 24 80 00 00 RSP: 0018:ffffc90005c97580 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90005c97608 RBP: ffffc90005c97730 R08: dffffc0000000000 R09: ffffc90005c97610 R10: fffff52000b92ed2 R11: 1ffff92000b92ec2 R12: 1ffff11003924353 R13: ffff88802e55e000 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007fe86e65b700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fae1786c000 CR3: 000000007710b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 74 05 e8 add %dh,-0x18(%rbp,%rax,1) 4: 8d ab cb fe 4c 89 lea -0x76b30135(%rbx),%ebp a: ac lods %ds:(%rsi),%al b: 24 88 and $0x88,%al d: 00 00 add %al,(%rax) f: 00 4c 89 7c add %cl,0x7c(%rcx,%rcx,4) 13: 24 08 and $0x8,%al 15: 49 8d 5f 08 lea 0x8(%r15),%rbx 19: 48 89 d8 mov %rbx,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 27: fc ff df * 2a: 42 8a 04 38 mov (%rax,%r15,1),%al <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 02 03 00 00 jne 0x338 36: 44 8b 23 mov (%rbx),%r12d 39: 4c rex.WR 3a: 8d .byte 0x8d 3b: b4 24 mov $0x24,%ah 3d: 80 00 00 addb $0x0,(%rax)