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BUG: KASAN: vmalloc-out-of-bounds in memcpy include/linux/string.h:381 [inline]
BUG: KASAN: vmalloc-out-of-bounds in lzo_uncompress+0x350/0x520 fs/squashfs/lzo_wrapper.c:80
Write of size 4096 at addr ffffc90000f63e75 by task syz-executor.1/10120

CPU: 1 PID: 10120 Comm: syz-executor.1 Not tainted 5.7.0-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+0x96/0xe0 lib/dump_stack.c:118
 print_address_description.constprop.8.cold.10+0x56/0x41e mm/kasan/report.c:382
 __kasan_report.cold.11+0x20/0x38 mm/kasan/report.c:511
 kasan_report+0x32/0x50 mm/kasan/common.c:625
 check_memory_region_inline mm/kasan/generic.c:186 [inline]
 check_memory_region+0x1c1/0x1e0 mm/kasan/generic.c:192
 memcpy+0x38/0x60 mm/kasan/common.c:107
 memcpy include/linux/string.h:381 [inline]
 lzo_uncompress+0x350/0x520 fs/squashfs/lzo_wrapper.c:80
 squashfs_decompress+0xce/0x1b0 fs/squashfs/decompressor_single.c:70
 squashfs_read_data+0x194/0xd4e fs/squashfs/block.c:210
 squashfs_cache_get+0x44e/0xe10 fs/squashfs/cache.c:110
 squashfs_read_metadata+0xe1/0x3f0 fs/squashfs/cache.c:344
 squashfs_read_inode+0x1b6/0x1d10 fs/squashfs/inode.c:115
 squashfs_fill_super+0xe91/0x2101 fs/squashfs/super.c:310
 get_tree_bdev+0x3ce/0x650 fs/super.c:1342
 vfs_get_tree+0x7e/0x330 fs/super.c:1547
 do_new_mount fs/namespace.c:2816 [inline]
 do_mount+0x102d/0x1750 fs/namespace.c:3141
 __do_sys_mount fs/namespace.c:3350 [inline]
 __se_sys_mount fs/namespace.c:3327 [inline]
 __x64_sys_mount+0x15d/0x1b0 fs/namespace.c:3327
 do_syscall_64+0x8e/0x4f0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
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:00007ffb4f587a78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffb4f587b10 RCX: 0000000000460c6a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffb4f587ad0
RBP: 00007ffb4f587ad0 R08: 00007ffb4f587b10 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000040 R15: 0000000020010200


Memory state around the buggy address:
 ffffc90000f63f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000f63f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90000f64000: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
                   ^
 ffffc90000f64080: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 ffffc90000f64100: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
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