RBP: 00007f4efbc4a090 R08: 0000000000003df1 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f4efe02b080 R15: 00007fffda128628
 </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+0x2c7/0x2010 fs/xfs/xfs_log_cil.c:1264
Write of size 88 at addr 0000000000000000 by task syz.0.2002/12704

CPU: 1 PID: 12704 Comm: syz.0.2002 Not tainted 5.15.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 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+0x27b/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+0x2c7/0x2010 fs/xfs/xfs_log_cil.c:1264
 __xfs_trans_commit+0x6b2/0xc50 fs/xfs/xfs_trans.c:881
 xfs_reflink_set_inode_flag+0x3ac/0x5e0 fs/xfs/xfs_reflink.c:1033
 xfs_reflink_remap_prep+0x33f/0x4e0 fs/xfs/xfs_reflink.c:1488
 xfs_file_remap_range+0x22e/0x740 fs/xfs/xfs_file.c:1161
 vfs_copy_file_range+0xce7/0x1470 fs/read_write.c:1510
 __do_sys_copy_file_range fs/read_write.c:1588 [inline]
 __se_sys_copy_file_range+0x31d/0x480 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: 0033:0x7f4efde03969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4efbc4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f4efe02b080 RCX: 00007f4efde03969
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f4efbc4a090 R08: 0000000000003df1 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f4efe02b080 R15: 00007fffda128628
 </TASK>
==================================================================