R10: 0000200000000140 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb749530038 R14: 00007fb74952ffa0 R15: 00007ffe5c2af198
 </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.2.276/5557

CPU: 0 PID: 5557 Comm: syz.2.276 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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_qm_scall_setqlim+0x1114/0x16f0 fs/xfs/xfs_qm_syscalls.c:414
 quota_setquota+0x4ac/0x530 fs/quota/quota.c:309
 __do_sys_quotactl_fd fs/quota/quota.c:1000 [inline]
 __se_sys_quotactl_fd+0x268/0x3b0 fs/quota/quota.c:971
 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: 0033:0x7fb749308be9
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:00007fb747570038 EFLAGS: 00000246 ORIG_RAX: 00000000000001bb
RAX: ffffffffffffffda RBX: 00007fb74952ffa0 RCX: 00007fb749308be9
RDX: 0000000000000000 RSI: ffffffff80000800 RDI: 0000000000000004
RBP: 00007fb747570090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000140 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb749530038 R14: 00007fb74952ffa0 R15: 00007ffe5c2af198
 </TASK>
==================================================================