squashfs: SQUASHFS error: Major/Minor mismatch, older Squashfs -27390.0 filesystems are unsupported
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BUG: KASAN: slab-out-of-bounds in squashfs_get_id+0x1ae/0x1d0 fs/squashfs/id.c:51
Read of size 8 at addr ffff888099ce2828 by task syz-executor.4/18350

CPU: 0 PID: 18350 Comm: syz-executor.4 Not tainted 4.19.171-syzkaller #0
squashfs: SQUASHFS error: Major/Minor mismatch, trying to mount newer 4.5888 filesystem
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/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 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: SQUASHFS error: Please update your kernel
 squashfs_fill_super+0x1655/0x1c00 fs/squashfs/super.c:318
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x310 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:00007fa3eaa5da78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa3eaa5db10 RCX: 0000000000460c6a
RDX: 0000000020000000 RSI: 00000000200001c0 RDI: 00007fa3eaa5dad0
RBP: 00007fa3eaa5dad0 R08: 00007fa3eaa5db10 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 00000000200001c0 R14: 0000000020000200 R15: 0000000020010200

Allocated by task 17413:
 __do_kmalloc mm/slab.c:3727 [inline]
 __kmalloc+0x15a/0x3c0 mm/slab.c:3736
 kmalloc include/linux/slab.h:520 [inline]
 __do_sys_memfd_create mm/memfd.c:295 [inline]
 __se_sys_memfd_create+0xf8/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 17413:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 __do_sys_memfd_create mm/memfd.c:339 [inline]
 __se_sys_memfd_create+0x323/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff888099ce2800
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 8 bytes to the right of
 32-byte region [ffff888099ce2800, ffff888099ce2820)
The buggy address belongs to the page:
page:ffffea0002673880 count:1 mapcount:0 mapping:ffff88813bff01c0 index:0xffff888099ce2fc1
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffffea00027a3608 ffffea0002679e88 ffff88813bff01c0
raw: ffff888099ce2fc1 ffff888099ce2000 0000000100000032 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888099ce2700: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888099ce2780: fb fb fb fb fc fc fc fc 00 fc fc fc fc fc fc fc
>ffff888099ce2800: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
                                  ^
 ffff888099ce2880: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888099ce2900: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
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