warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0xda/0x2b00 kernel/locking/lockdep.c:4897
Read of size 8 at addr ffff88801b9e4678 by task syz-executor.2/14074

CPU: 1 PID: 14074 Comm: syz-executor.2 Not tainted 5.17.0-rc7-syzkaller-00205-g79b00034e9dc #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+0x1dc/0x2d8 lib/dump_stack.c:106
 print_address_description+0x65/0x3a0 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report+0x19a/0x1f0 mm/kasan/report.c:459
 __lock_acquire+0xda/0x2b00 kernel/locking/lockdep.c:4897
 lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5639
 __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+0x2cb/0x400 fs/jbd2/transaction.c:861
 jbd2_journal_lock_updates+0x33b/0x420 fs/jbd2/transaction.c:896
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1085 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1562 [inline]
 ext4_ioctl+0x34c7/0x65d0 fs/ext4/ioctl.c:1578
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc4c6705049
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:00007fc4c507a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc4c6817f60 RCX: 00007fc4c6705049
RDX: 0000000020000000 RSI: 000000004004662b RDI: 0000000000000005
RBP: 00007fc4c675f08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc0a2862f R14: 00007fc4c507a300 R15: 0000000000022000
 </TASK>

Allocated by task 3628:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:436 [inline]
 __kasan_slab_alloc+0xb2/0xe0 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+0x1c9/0x310 mm/slub.c:3243
 kmem_cache_zalloc include/linux/slab.h:704 [inline]
 start_this_handle+0x328/0x1630 fs/jbd2/transaction.c:375
 jbd2__journal_start+0x2ca/0x5b0 fs/jbd2/transaction.c:525
 __ext4_journal_start_sb+0x111/0x1e0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_dirty_inode+0x8a/0x100 fs/ext4/inode.c:5899
 __mark_inode_dirty+0xb6/0x8f0 fs/fs-writeback.c:2409
 generic_update_time fs/inode.c:1856 [inline]
 inode_update_time fs/inode.c:1869 [inline]
 touch_atime+0x3ef/0x650 fs/inode.c:1941
 file_accessed include/linux/fs.h:2421 [inline]
 iterate_dir+0x552/0x640 fs/readdir.c:70
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x1ea/0x4e0 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 14080:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x126/0x180 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:236 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1754
 slab_free mm/slub.c:3509 [inline]
 kmem_cache_free+0xb6/0x1c0 mm/slub.c:3526
 __jbd2_journal_remove_checkpoint+0x529/0x5c0 fs/jbd2/checkpoint.c:735
 jbd2_log_do_checkpoint+0x1086/0x1550 fs/jbd2/checkpoint.c:354
 jbd2_journal_flush+0x298/0xd70 fs/jbd2/journal.c:2465
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1086 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1562 [inline]
 ext4_ioctl+0x3512/0x65d0 fs/ext4/ioctl.c:1578
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88801b9e4600
 which belongs to the cache jbd2_transaction_s of size 280
The buggy address is located 120 bytes inside of
 280-byte region [ffff88801b9e4600, ffff88801b9e4718)
The buggy address belongs to the page:
page:ffffea00006e7900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1b9e4
head:ffffea00006e7900 order:1 compound_mapcount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000001 ffff8880180e5640
raw: 0000000000000000 0000000080150015 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 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 1, ts 12448736875, free_ts 0
 prep_new_page mm/page_alloc.c:2434 [inline]
 get_page_from_freelist+0x729/0x9e0 mm/page_alloc.c:4165
 __alloc_pages+0x255/0x580 mm/page_alloc.c:5389
 alloc_slab_page mm/slub.c:1799 [inline]
 allocate_slab+0xce/0x3f0 mm/slub.c:1944
 new_slab mm/slub.c:2004 [inline]
 ___slab_alloc+0x3fe/0xc30 mm/slub.c:3018
 __slab_alloc mm/slub.c:3105 [inline]
 slab_alloc_node mm/slub.c:3196 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 kmem_cache_alloc+0x276/0x310 mm/slub.c:3243
 kmem_cache_zalloc include/linux/slab.h:704 [inline]
 start_this_handle+0x328/0x1630 fs/jbd2/transaction.c:375
 jbd2__journal_start+0x2ca/0x5b0 fs/jbd2/transaction.c:525
 __ext4_journal_start_sb+0x111/0x1e0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_dirty_inode+0x8a/0x100 fs/ext4/inode.c:5899
 __mark_inode_dirty+0xb6/0x8f0 fs/fs-writeback.c:2409
 generic_update_time fs/inode.c:1856 [inline]
 inode_update_time fs/inode.c:1869 [inline]
 touch_atime+0x3ef/0x650 fs/inode.c:1941
 pick_link fs/namei.c:1796 [inline]
 step_into+0x10cc/0x2050 fs/namei.c:1876
 walk_component+0x33a/0x790 fs/namei.c:2026
 link_path_walk+0x675/0xde0
 path_lookupat+0xab/0x6c0 fs/namei.c:2498
 filename_lookup+0x270/0x640 fs/namei.c:2528
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88801b9e4500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801b9e4580: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88801b9e4600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff88801b9e4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801b9e4700: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================