diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/mmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c index caab62909e..0019447892 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -467,7 +467,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, * It can fail only on 64-bit host with 32-bit target. * On any other target/host host mmap() handles this error correctly. */ - if (!guest_range_valid(start, len)) { + if (end < start || !guest_range_valid(start, len)) { errno = ENOMEM; goto fail; } |