warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x3f2f/0x56c0 kernel/locking/lockdep.c:4897
Read of size 8 at addr ffff888048d650f8 by task syz-executor.4/10018

CPU: 1 PID: 10018 Comm: syz-executor.4 Not tainted 5.17.0-rc8-syzkaller-00064-ged32641e06c6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x336 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 __lock_acquire+0x3f2f/0x56c0 kernel/locking/lockdep.c:4897
 lock_acquire kernel/locking/lockdep.c:5639 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 jbd2_journal_wait_updates+0x221/0x2b0 fs/jbd2/transaction.c:861
 jbd2_journal_lock_updates+0x183/0x350 fs/jbd2/transaction.c:896
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1085 [inline]
 __ext4_ioctl+0x1fba/0x57e0 fs/ext4/ioctl.c:1562
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9d0d3cf049
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d0bd44168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9d0d4e1f60 RCX: 00007f9d0d3cf049
RDX: 00000000200003c0 RSI: 000000004004662b RDI: 0000000000000013
RBP: 00007f9d0d42908d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff72c8fbbf R14: 00007f9d0bd44300 R15: 0000000000022000
 </TASK>

Allocated by task 12175:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:436 [inline]
 __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:469
 kasan_slab_alloc include/linux/kasan.h:260 [inline]
 slab_post_alloc_hook mm/slab.h:732 [inline]
 slab_alloc_node mm/slub.c:3230 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 kmem_cache_alloc+0x271/0x4b0 mm/slub.c:3243
 kmem_cache_zalloc include/linux/slab.h:704 [inline]
 start_this_handle+0x66e/0x1380 fs/jbd2/transaction.c:375
 jbd2__journal_start+0x386/0x6b0 fs/jbd2/transaction.c:525
 __ext4_journal_start_sb+0x3a8/0x4a0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_unlink+0x2f4/0x9e0 fs/ext4/namei.c:3224
 vfs_unlink+0x351/0x920 fs/namei.c:4150
 do_unlinkat+0x3c9/0x650 fs/namei.c:4218
 __do_sys_unlink fs/namei.c:4266 [inline]
 __se_sys_unlink fs/namei.c:4264 [inline]
 __x64_sys_unlink+0xc6/0x110 fs/namei.c:4264
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 10026:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:328
 kasan_slab_free include/linux/kasan.h:236 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754
 slab_free mm/slub.c:3509 [inline]
 kmem_cache_free+0xd7/0x370 mm/slub.c:3526
 jbd2_journal_free_transaction+0x30/0x40 fs/jbd2/transaction.c:62
 __jbd2_journal_remove_checkpoint+0x438/0x840 fs/jbd2/checkpoint.c:735
 jbd2_log_do_checkpoint+0x494/0xf70 fs/jbd2/checkpoint.c:354
 jbd2_journal_flush+0x1a5/0xc70 fs/jbd2/journal.c:2465
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1086 [inline]
 __ext4_ioctl+0x200d/0x57e0 fs/ext4/ioctl.c:1562
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff888048d65080
 which belongs to the cache jbd2_transaction_s of size 280
The buggy address is located 120 bytes inside of
 280-byte region [ffff888048d65080, ffff888048d65198)
The buggy address belongs to the page:
page:ffffea0001235900 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888048d64480 pfn:0x48d64
head:ffffea0001235900 order:1 compound_mapcount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea000123e280 dead000000000003 ffff888146368a00
raw: ffff888048d64480 0000000080150010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 3627, ts 911890890654, free_ts 885615434558
 prep_new_page mm/page_alloc.c:2434 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4165
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5389
 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2271
 alloc_slab_page mm/slub.c:1799 [inline]
 allocate_slab+0x27f/0x3c0 mm/slub.c:1944
 new_slab mm/slub.c:2004 [inline]
 ___slab_alloc+0xbe1/0x12b0 mm/slub.c:3018
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3105
 slab_alloc_node mm/slub.c:3196 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 kmem_cache_alloc+0x3cb/0x4b0 mm/slub.c:3243
 kmem_cache_zalloc include/linux/slab.h:704 [inline]
 start_this_handle+0x66e/0x1380 fs/jbd2/transaction.c:375
 jbd2__journal_start+0x386/0x6b0 fs/jbd2/transaction.c:525
 __ext4_journal_start_sb+0x3a8/0x4a0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_dirty_inode+0x9d/0x110 fs/ext4/inode.c:5899
 __mark_inode_dirty+0x45b/0xfe0 fs/fs-writeback.c:2409
 generic_update_time fs/inode.c:1856 [inline]
 inode_update_time fs/inode.c:1869 [inline]
 touch_atime+0x63d/0x700 fs/inode.c:1941
 file_accessed include/linux/fs.h:2421 [inline]
 iterate_dir+0x465/0x700 fs/readdir.c:70
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __x64_sys_getdents64+0x13a/0x2c0 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1352 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1404
 free_unref_page_prepare mm/page_alloc.c:3325 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3404
 __unfreeze_partials+0x320/0x340 mm/slub.c:2536
 qlink_free mm/kasan/quarantine.c:157 [inline]
 qlist_free_all+0x6d/0x160 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446
 kasan_slab_alloc include/linux/kasan.h:260 [inline]
 slab_post_alloc_hook mm/slab.h:732 [inline]
 slab_alloc_node mm/slub.c:3230 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 kmem_cache_alloc+0x271/0x4b0 mm/slub.c:3243
 kmem_cache_zalloc include/linux/slab.h:704 [inline]
 jbd2_alloc_handle include/linux/jbd2.h:1600 [inline]
 new_handle fs/jbd2/transaction.c:481 [inline]
 jbd2__journal_start+0x186/0x6b0 fs/jbd2/transaction.c:508
 __ext4_journal_start_sb+0x3a8/0x4a0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_dirty_inode+0x9d/0x110 fs/ext4/inode.c:5899
 __mark_inode_dirty+0x45b/0xfe0 fs/fs-writeback.c:2409
 mark_inode_dirty include/linux/fs.h:2367 [inline]
 generic_write_end+0x31b/0x500 fs/buffer.c:2203
 ext4_da_write_end+0x1c2/0x990 fs/ext4/inode.c:3042
 generic_perform_write+0x2c6/0x510 mm/filemap.c:3776
 ext4_buffered_write_iter+0x1a2/0x390 fs/ext4/file.c:268
 ext4_file_write_iter+0x423/0x14d0 fs/ext4/file.c:677

Memory state around the buggy address:
 ffff888048d64f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888048d65000: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888048d65080: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff888048d65100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888048d65180: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================