R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007efde624ffa0 R15: 00007ffe05ad40f8
 </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+0x383/0x24b0 fs/xfs/xfs_log_cil.c:1264
Write of size 104 at addr 0000000000000000 by task syz.2.139/5045

CPU: 1 PID: 5045 Comm: syz.2.139 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 __kasan_report mm/kasan/report.c:438 [inline]
 kasan_report+0x161/0x1c0 mm/kasan/report.c:451
 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189
 memset+0x1f/0x40 mm/kasan/shadow.c:44
 xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:225 [inline]
 xlog_cil_commit+0x383/0x24b0 fs/xfs/xfs_log_cil.c:1264
 __xfs_trans_commit+0x7e8/0xdd0 fs/xfs/xfs_trans.c:881
 xfs_bmapi_convert_delalloc+0xe5e/0x1180 fs/xfs/libxfs/xfs_bmap.c:4663
 xfs_convert_blocks fs/xfs/xfs_aops.c:245 [inline]
 xfs_map_blocks+0xa9e/0x1520 fs/xfs/xfs_aops.c:366
 iomap_writepage_map fs/iomap/buffered-io.c:1320 [inline]
 iomap_do_writepage+0x63c/0x21c0 fs/iomap/buffered-io.c:1485
 write_cache_pages+0xa97/0x1160 mm/page-writeback.c:2277
 iomap_writepages+0x64/0x240 fs/iomap/buffered-io.c:1516
 xfs_vm_writepages+0x127/0x180 fs/xfs/xfs_aops.c:488
 do_writepages+0x481/0x730 mm/page-writeback.c:2386
 filemap_fdatawrite_wbc+0x1d6/0x230 mm/filemap.c:400
 __filemap_fdatawrite_range mm/filemap.c:433 [inline]
 __filemap_fdatawrite mm/filemap.c:439 [inline]
 filemap_flush+0x10c/0x150 mm/filemap.c:466
 xfs_release+0x2e8/0x3d0 fs/xfs/xfs_inode.c:1462
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efde605fd29
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:00007efde3ed0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007efde624ffa0 RCX: 00007efde605fd29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007efde3ed0090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007efde624ffa0 R15: 00007ffe05ad40f8
 </TASK>
==================================================================