exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:872
 do_group_exit+0x144/0x310 kernel/exit.c:994
 get_signal+0xc66/0x14e0 kernel/signal.c:2889
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:865
------------[ cut here ]------------
kernel BUG at mm/slub.c:3532!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6995 Comm: syz-executor.2 Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:free_nonslab_page+0x14d/0x150 mm/slub.c:3532
Code: e9 41 ff ff ff 48 89 df 48 c7 c6 20 31 13 8c e8 79 1c ed ff 0f 0b e8 32 80 4e 08 48 89 df 48 c7 c6 41 b6 14 8c e8 63 1c ed ff <0f> 0b 90 53 48 89 fb e8 67 50 83 ff 48 89 df e8 df eb ff ff e8 1a
RSP: 0018:ffffc900063b7768 EFLAGS: 00010246
RAX: ba6ff7970ed3c900 RBX: ffffea00012f1580 RCX: 0000000000040000
RDX: ffffc9000b8c2000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffea00012f1580 R08: ffffffff81cfc4b4 R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffea00012f1580
FS:  00007fbefca8f700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00e93b000 CR3: 0000000026463000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kfree+0x1cf/0x270 mm/slub.c:4556
 ext4_xattr_move_to_block fs/ext4/xattr.c:2628 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2691 [inline]
 ext4_expand_extra_isize_ea+0x1063/0x1bc0 fs/ext4/xattr.c:2783
 __ext4_expand_extra_isize+0x2f7/0x3d0 fs/ext4/inode.c:5828
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5871 [inline]
 __ext4_mark_inode_dirty+0x539/0x860 fs/ext4/inode.c:5949
 __ext4_unlink+0x8cd/0xae0 fs/ext4/namei.c:3255
 ext4_unlink+0x1a9/0x530 fs/ext4/namei.c:3298
 vfs_unlink+0x359/0x5f0 fs/namei.c:4209
 do_unlinkat+0x49d/0x940 fs/namei.c:4277
 __do_sys_unlinkat fs/namei.c:4320 [inline]
 __se_sys_unlinkat fs/namei.c:4313 [inline]
 __x64_sys_unlinkat+0xca/0xf0 fs/namei.c:4313
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbefe51d169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbefca8f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00007fbefe63cf80 RCX: 00007fbefe51d169
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007fbefe578ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8f09b95f R14: 00007fbefca8f300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0b3e790f88380447 ]---
RIP: 0010:free_nonslab_page+0x14d/0x150 mm/slub.c:3532
Code: e9 41 ff ff ff 48 89 df 48 c7 c6 20 31 13 8c e8 79 1c ed ff 0f 0b e8 32 80 4e 08 48 89 df 48 c7 c6 41 b6 14 8c e8 63 1c ed ff <0f> 0b 90 53 48 89 fb e8 67 50 83 ff 48 89 df e8 df eb ff ff e8 1a
RSP: 0018:ffffc900063b7768 EFLAGS: 00010246
RAX: ba6ff7970ed3c900 RBX: ffffea00012f1580 RCX: 0000000000040000
RDX: ffffc9000b8c2000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffea00012f1580 R08: ffffffff81cfc4b4 R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffea00012f1580
FS:  00007fbefca8f700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00e93b000 CR3: 0000000026463000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400