EXT4-fs (loop3): get root inode failed
EXT4-fs (loop3): mount failed
==================================================================
BUG: KASAN: slab-out-of-bounds in squashfs_get_id+0x1ae/0x1d0 fs/squashfs/id.c:51
Read of size 8 at addr ffff888098727968 by task syz-executor.1/29994

CPU: 1 PID: 29994 Comm: syz-executor.1 Not tainted 4.19.164-syzkaller #0
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+0x1fc/0x2fe lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1c7 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433
 squashfs_get_id+0x1ae/0x1d0 fs/squashfs/id.c:51
 squashfs_new_inode fs/squashfs/inode.c:64 [inline]
 squashfs_read_inode+0x1b4/0x1b40 fs/squashfs/inode.c:133
 squashfs_fill_super+0x1655/0x1c00 fs/squashfs/super.c:318
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x30c fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x113c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x460c6a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 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 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f883a466a78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f883a466b10 RCX: 0000000000460c6a
RDX: 0000000020000040 RSI: 0000000020000100 RDI: 00007f883a466ad0
RBP: 00007f883a466ad0 R08: 00007f883a466b10 R09: 0000000020000040
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000040
R13: 0000000020000100 R14: 0000000020000200 R15: 00000000200003c0

Allocated by task 29994:
 __do_kmalloc mm/slab.c:3727 [inline]
 __kmalloc+0x15a/0x3c0 mm/slab.c:3736
 kmalloc include/linux/slab.h:520 [inline]
 squashfs_read_table+0x42/0x1e3 fs/squashfs/cache.c:426
 squashfs_read_id_index_table+0xab/0x120 fs/squashfs/id.c:90
 squashfs_fill_super+0xcfb/0x1c00 fs/squashfs/super.c:246
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x30c fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x113c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 8140:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 kvfree+0x59/0x60 mm/util.c:452
 ext4_mb_release+0xa3f/0x13c0 fs/ext4/mballoc.c:2748
 ext4_put_super+0xadb/0x1010 fs/ext4/super.c:995
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff888098727940
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 8 bytes to the right of
 32-byte region [ffff888098727940, ffff888098727960)
The buggy address belongs to the page:
page:ffffea000261c9c0 count:1 mapcount:0 mapping:ffff88813bff01c0 index:0xffff888098727fc1
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffffea00026c60c8 ffffea0002924408 ffff88813bff01c0
raw: ffff888098727fc1 ffff888098727000 0000000100000036 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888098727800: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888098727880: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
>ffff888098727900: fb fb fb fb fc fc fc fc 00 fc fc fc fc fc fc fc
                                                          ^
 ffff888098727980: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888098727a00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
==================================================================
EXT4-fs error (device loop5): ext4_orphan_get:1257: comm syz-executor.5: bad orphan inode 3964644096
EXT4-fs mount: 27 callbacks suppressed
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode
EXT4-fs (loop3): encrypted files will use data=ordered instead of data journaling mode
EXT4-fs error (device loop2): ext4_orphan_get:1257: comm syz-executor.2: bad orphan inode 3964644096