RBP: 00007fc45c711090 R08: fffffbffa003e45f R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fc45e731038 R14: 00007fc45e730fa0 R15: 00007ffe4315a4f8
 </TASK>
==================================================================
BUG: KASAN: null-ptr-deref in xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:225 [inline]
BUG: KASAN: null-ptr-deref in xlog_cil_commit+0x2d8/0x2050 fs/xfs/xfs_log_cil.c:1264
Write of size 88 at addr 0000000000000000 by task syz.4.173/5183

CPU: 0 PID: 5183 Comm: syz.4.173 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 __kasan_report mm/kasan/report.c:438 [inline]
 kasan_report+0xd5/0x130 mm/kasan/report.c:451
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x235/0x290 mm/kasan/generic.c:189
 memset+0x1e/0x40 mm/kasan/shadow.c:44
 xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:225 [inline]
 xlog_cil_commit+0x2d8/0x2050 fs/xfs/xfs_log_cil.c:1264
 __xfs_trans_commit+0x6b4/0xc60 fs/xfs/xfs_trans.c:881
 xfs_vn_update_time+0x3a0/0x520 fs/xfs/xfs_iops.c:1072
 inode_update_time fs/inode.c:1893 [inline]
 file_update_time+0x3a6/0x440 fs/inode.c:2083
 generic_remap_file_range_prep+0xa17/0xac0 fs/remap_range.c:358
 xfs_reflink_remap_prep+0x25c/0x4e0 fs/xfs/xfs_reflink.c:1469
 xfs_file_remap_range+0x236/0x750 fs/xfs/xfs_file.c:1161
 vfs_copy_file_range+0xd31/0x1480 fs/read_write.c:1510
 __do_sys_copy_file_range fs/read_write.c:1588 [inline]
 __se_sys_copy_file_range+0x320/0x470 fs/read_write.c:1551
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc45e4b7819
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:00007fc45c711028 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fc45e730fa0 RCX: 00007fc45e4b7819
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007fc45c711090 R08: fffffbffa003e45f R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fc45e731038 R14: 00007fc45e730fa0 R15: 00007ffe4315a4f8
 </TASK>
==================================================================