RSP: 002b:00007f2a266d7038 EFLAGS: 00000246 ORIG_RAX: 000000000000005d
RAX: ffffffffffffffda RBX: 00007f2a28ad9160 RCX: 00007f2a288b1969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007f2a266d7090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f2a28ad9160 R15: 00007ffc7fbdc2e8
 </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.3.442/6448

CPU: 1 PID: 6448 Comm: syz.3.442 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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_setattr_nonsize+0x6a9/0x9f0 fs/xfs/xfs_iops.c:745
 xfs_vn_setattr+0x289/0x300 fs/xfs/xfs_iops.c:1029
 notify_change+0xbcd/0xee0 fs/attr.c:505
 chown_common+0x483/0x610 fs/open.c:680
 vfs_fchown fs/open.c:748 [inline]
 ksys_fchown+0xe2/0x150 fs/open.c:759
 __do_sys_fchown fs/open.c:767 [inline]
 __se_sys_fchown fs/open.c:765 [inline]
 __x64_sys_fchown+0x76/0x80 fs/open.c:765
 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: 0033:0x7f2a288b1969
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:00007f2a266d7038 EFLAGS: 00000246 ORIG_RAX: 000000000000005d
RAX: ffffffffffffffda RBX: 00007f2a28ad9160 RCX: 00007f2a288b1969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007f2a266d7090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f2a28ad9160 R15: 00007ffc7fbdc2e8
 </TASK>
==================================================================