==================================================================
BUG: KASAN: slab-out-of-bounds in squashfs_get_id+0x1bc/0x1f0 fs/squashfs/id.c:51
Read of size 8 at addr ffff88809efe8f60 by task syz-executor.2/14591

CPU: 1 PID: 14591 Comm: syz-executor.2 Not tainted 4.19.150-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+0x22c/0x33e lib/dump_stack.c:118
 print_address_description.cold+0x56/0x25c mm/kasan/report.c:256
 kasan_report_error.cold+0x66/0xb9 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+0x1bc/0x1f0 fs/squashfs/id.c:51
 squashfs_new_inode fs/squashfs/inode.c:64 [inline]
 squashfs_read_inode+0x197/0x1940 fs/squashfs/inode.c:133
 squashfs_fill_super+0x1277/0x190a fs/squashfs/super.c:318
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x318 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+0x51c/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+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x46087a
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:00007f57f1820a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f57f1820b20 RCX: 000000000046087a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f57f1820ae0
RBP: 00007f57f1820ae0 R08: 00007f57f1820b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020010300

Allocated by task 1:
 kmem_cache_alloc_trace+0x12f/0x4b0 mm/slab.c:3625
 kmalloc include/linux/slab.h:515 [inline]
 hub_configure drivers/usb/core/hub.c:1353 [inline]
 hub_probe+0xab8/0x29c0 drivers/usb/core/hub.c:1849
 usb_probe_interface+0x2f9/0x960 drivers/usb/core/driver.c:361
 really_probe+0x580/0x950 drivers/base/dd.c:503
 driver_probe_device+0x114/0x240 drivers/base/dd.c:664
 __device_attach_driver+0x207/0x270 drivers/base/dd.c:751
 bus_for_each_drv+0x146/0x1e0 drivers/base/bus.c:464
 __device_attach+0x226/0x460 drivers/base/dd.c:819
 bus_probe_device+0x1ea/0x2a0 drivers/base/bus.c:524
 device_add+0xa2f/0x1550 drivers/base/core.c:2154
 usb_set_configuration+0x1033/0x1a10 drivers/usb/core/message.c:2016
 generic_probe+0xcb/0x130 drivers/usb/core/generic.c:174
 usb_probe_device+0xa5/0x110 drivers/usb/core/driver.c:266
 really_probe+0x580/0x950 drivers/base/dd.c:503
 driver_probe_device+0x114/0x240 drivers/base/dd.c:664
 __device_attach_driver+0x207/0x270 drivers/base/dd.c:751
 bus_for_each_drv+0x146/0x1e0 drivers/base/bus.c:464
 __device_attach+0x226/0x460 drivers/base/dd.c:819
 bus_probe_device+0x1ea/0x2a0 drivers/base/bus.c:524
 device_add+0xa2f/0x1550 drivers/base/core.c:2154
 usb_new_device+0xa00/0x1930 drivers/usb/core/hub.c:2519
 register_root_hub drivers/usb/core/hcd.c:1105 [inline]
 usb_add_hcd+0xcd6/0x19d0 drivers/usb/core/hcd.c:2882
 vhci_hcd_probe+0x166/0x230 drivers/usb/usbip/vhci_hcd.c:1369
 platform_drv_probe+0x92/0x200 drivers/base/platform.c:584
 really_probe+0x580/0x950 drivers/base/dd.c:503
 driver_probe_device+0x114/0x240 drivers/base/dd.c:664
 __device_attach_driver+0x207/0x270 drivers/base/dd.c:751
 bus_for_each_drv+0x146/0x1e0 drivers/base/bus.c:464
 __device_attach+0x226/0x460 drivers/base/dd.c:819
 bus_probe_device+0x1ea/0x2a0 drivers/base/bus.c:524
 device_add+0xa2f/0x1550 drivers/base/core.c:2154
 platform_device_add+0x355/0x700 drivers/base/platform.c:420
 vhci_hcd_init+0x341/0x485 drivers/usb/usbip/vhci_hcd.c:1539
 do_one_initcall+0xf1/0x786 init/main.c:884
 do_initcall_level init/main.c:952 [inline]
 do_initcalls init/main.c:960 [inline]
 do_basic_setup init/main.c:978 [inline]
 kernel_init_freeable+0xb43/0xc31 init/main.c:1145
 kernel_init+0xe/0x1e2 init/main.c:1062
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff88809efe8f40
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes to the right of
 32-byte region [ffff88809efe8f40, ffff88809efe8f60)
The buggy address belongs to the page:
page:ffffea00027bfa00 count:1 mapcount:0 mapping:ffff88812c3f61c0 index:0xffff88809efe8fc1
flags: 0xfffe0000000100(slab)
raw: 00fffe0000000100 ffffea0002827848 ffffea0002907848 ffff88812c3f61c0
raw: ffff88809efe8fc1 ffff88809efe8000 0000000100000037 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88809efe8e00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff88809efe8e80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
>ffff88809efe8f00: 00 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc
                                                       ^
 ffff88809efe8f80: 05 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88809efe9000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
squashfs: SQUASHFS error: unable to read xattr id index table
squashfs: SQUASHFS error: unable to read fragment index table