audit: type=1804 audit(1673449914.696:27): pid=11702 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir4130325590/syzkaller.R11md9/70/bus" dev="sda1" ino=14094 res=1
F2FS-fs (loop3): Found nat_bits in checkpoint
F2FS-fs (loop3): Cannot turn on journaled quota: error -2
F2FS-fs (loop3): Cannot turn on journaled quota: error -2
==================================================================
BUG: KASAN: use-after-free in f2fs_evict_inode+0xdad/0x1070 fs/f2fs/inode.c:544
Read of size 4 at addr ffff8880b4266d70 by task syz-executor.3/11673
CPU: 0 PID: 11673 Comm: syz-executor.3 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
kasan_report mm/kasan/report.c:409 [inline]
__asan_report_load4_noabort+0x68/0x70 mm/kasan/report.c:429
f2fs_evict_inode+0xdad/0x1070 fs/f2fs/inode.c:544
evict+0x2c8/0x700 fs/inode.c:554
iput_final fs/inode.c:1523 [inline]
iput+0x458/0x7e0 fs/inode.c:1550
F2FS-fs (loop5): Found nat_bits in checkpoint
dentry_unlink_inode+0x25c/0x310 fs/dcache.c:387
__dentry_kill+0x320/0x550 fs/dcache.c:591
shrink_dentry_list+0x2c2/0xac0 fs/dcache.c:1069
shrink_dcache_sb+0x105/0x1b0 fs/dcache.c:1191
F2FS-fs (loop5): Cannot turn on journaled quota: error -2
f2fs_fill_super+0x127f/0x56a0 fs/f2fs/super.c:2767
F2FS-fs (loop5): Cannot turn on journaled quota: error -2
mount_bdev+0x2b3/0x360 fs/super.c:1134
mount_fs+0x92/0x2a0 fs/super.c:1237
vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2572 [inline]
do_mount+0xe65/0x2a30 fs/namespace.c:2905
SYSC_mount fs/namespace.c:3121 [inline]
SyS_mount+0xa8/0x120 fs/namespace.c:3098
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fd4f55aa5fa
RSP: 002b:00007fd4f3b1af88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000105a5 RCX: 00007fd4f55aa5fa
RDX: 00000000200000c0 RSI: 0000000020010600 RDI: 00007fd4f3b1afe0
RBP: 00007fd4f3b1b020 R08: 00007fd4f3b1b020 R09: 0000000000000002
R10: 0000000000000002 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020010600 R14: 00007fd4f3b1afe0 R15: 0000000020000200
Allocated by task 11673:
save_stack mm/kasan/kasan.c:447 [inline]
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618
kmalloc include/linux/slab.h:488 [inline]
kzalloc include/linux/slab.h:661 [inline]
f2fs_fill_super+0xef/0x56a0 fs/f2fs/super.c:2407
mount_bdev+0x2b3/0x360 fs/super.c:1134
mount_fs+0x92/0x2a0 fs/super.c:1237
vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2572 [inline]
do_mount+0xe65/0x2a30 fs/namespace.c:2905
SYSC_mount fs/namespace.c:3121 [inline]
SyS_mount+0xa8/0x120 fs/namespace.c:3098
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
Freed by task 11673:
save_stack mm/kasan/kasan.c:447 [inline]
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3496 [inline]
kfree+0xc9/0x250 mm/slab.c:3815
f2fs_fill_super+0x1263/0x56a0 fs/f2fs/super.c:2762
mount_bdev+0x2b3/0x360 fs/super.c:1134
mount_fs+0x92/0x2a0 fs/super.c:1237
vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2572 [inline]
do_mount+0xe65/0x2a30 fs/namespace.c:2905
SYSC_mount fs/namespace.c:3121 [inline]
SyS_mount+0xa8/0x120 fs/namespace.c:3098
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
The buggy address belongs to the object at ffff8880b4266440
which belongs to the cache kmalloc-4096 of size 4096
The buggy address is located 2352 bytes inside of
4096-byte region [ffff8880b4266440, ffff8880b4267440)
The buggy address belongs to the page:
page:ffffea0002d09980 count:1 mapcount:0 mapping:ffff8880b4266440 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffff8880b4266440 0000000000000000 0000000100000001
raw: ffffea000187c120 ffffea000194b9a0 ffff88813fe74dc0 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8880b4266c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880b4266c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880b4266d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880b4266d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880b4266e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================