REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop5): using ordered data mode
reiserfs: using flush barriers
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x3829/0x5020 kernel/locking/lockdep.c:3291
Read of size 8 at addr ffff8801c86dea38 by task syz-executor5/10465
CPU: 1 PID: 10465 Comm: syz-executor5 Not tainted 4.19.0-rc1+ #214
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
print_address_description+0x6c/0x20b mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report.cold.7+0x242/0x30d mm/kasan/report.c:412
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
__lock_acquire+0x3829/0x5020 kernel/locking/lockdep.c:3291
lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0x171/0x1700 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
blkdev_get+0x5f2/0xb50 fs/block_dev.c:1623
blkdev_get_by_dev+0x3f/0x80 fs/block_dev.c:1739
journal_init_dev fs/reiserfs/journal.c:2628 [inline]
journal_init+0xcad/0x6a20 fs/reiserfs/journal.c:2775
reiserfs_fill_super+0xd74/0x3930 fs/reiserfs/super.c:2034
mount_bdev+0x30c/0x3e0 fs/super.c:1158
get_super_block+0x34/0x40 fs/reiserfs/super.c:2605
mount_fs+0xae/0x328 fs/super.c:1261
vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
vfs_kern_mount fs/namespace.c:951 [inline]
do_new_mount fs/namespace.c:2457 [inline]
do_mount+0x581/0x30e0 fs/namespace.c:2787
ksys_mount+0x12d/0x140 fs/namespace.c:3003
__do_sys_mount fs/namespace.c:3017 [inline]
__se_sys_mount fs/namespace.c:3014 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459aba
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 bd 8a fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 9a 8a fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f533e0cca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f533e0ccb30 RCX: 0000000000459aba
RDX: 00007f533e0ccad0 RSI: 0000000020000100 RDI: 00007f533e0ccaf0
RBP: 0000000020000100 R08: 00007f533e0ccb30 R09: 00007f533e0ccad0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 0000000000000000 R14: 00000000004c9fad R15: 0000000000000000
Allocated by task 10465:
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
kmem_cache_alloc+0x12e/0x710 mm/slab.c:3554
bdev_alloc_inode+0x1b/0x40 fs/block_dev.c:730
alloc_inode+0x63/0x190 fs/inode.c:210
iget5_locked+0x12e/0x1d0 fs/inode.c:1123
bdget+0xb7/0x5e0 fs/block_dev.c:871
blkdev_get_by_dev+0x24/0x80 fs/block_dev.c:1735
journal_init_dev fs/reiserfs/journal.c:2628 [inline]
journal_init+0xcad/0x6a20 fs/reiserfs/journal.c:2775
reiserfs_fill_super+0xd74/0x3930 fs/reiserfs/super.c:2034
mount_bdev+0x30c/0x3e0 fs/super.c:1158
get_super_block+0x34/0x40 fs/reiserfs/super.c:2605
mount_fs+0xae/0x328 fs/super.c:1261
vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
vfs_kern_mount fs/namespace.c:951 [inline]
do_new_mount fs/namespace.c:2457 [inline]
do_mount+0x581/0x30e0 fs/namespace.c:2787
ksys_mount+0x12d/0x140 fs/namespace.c:3003
__do_sys_mount fs/namespace.c:3017 [inline]
__se_sys_mount fs/namespace.c:3014 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 2538:
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
set_track mm/kasan/kasan.c:460 [inline]
__kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521
kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
__cache_free mm/slab.c:3498 [inline]
kmem_cache_free+0x86/0x280 mm/slab.c:3756
bdev_i_callback+0x20/0x30 fs/block_dev.c:741
__rcu_reclaim kernel/rcu/rcu.h:236 [inline]
rcu_do_batch kernel/rcu/tree.c:2576 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2880 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2847 [inline]
rcu_process_callbacks+0xf78/0x27c0 kernel/rcu/tree.c:2864
__do_softirq+0x2eb/0xa74 kernel/softirq.c:292
The buggy address belongs to the object at ffff8801c86de9c0
which belongs to the cache bdev_cache(87:syz5) of size 1344
The buggy address is located 120 bytes inside of
1344-byte region [ffff8801c86de9c0, ffff8801c86def00)
The buggy address belongs to the page:
page:ffffea000721b780 count:1 mapcount:0 mapping:ffff8801ba6fe480 index:0xffff8801c86deffe
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffffea0005d8ee48 ffffea0007212608 ffff8801ba6fe480
raw: ffff8801c86deffe ffff8801c86de400 0000000100000002 ffff8801bc4027c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff8801bc4027c0
Memory state around the buggy address:
ffff8801c86de900: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8801c86de980: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
>ffff8801c86dea00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8801c86dea80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801c86deb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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