linux-user: Fix erroneous conversion in copy_file_range
The implicit cast from abi_long to size_t may introduce an intermediate unwanted sign-extension of the value for 32bit targets running on 64bit hosts. Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210503174159.54302-3-thatlemon@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
parent
db3221454d
commit
0fa259dd79
@ -13244,8 +13244,9 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
|
||||
}
|
||||
poutoff = &outoff;
|
||||
}
|
||||
/* Do not sign-extend the count parameter. */
|
||||
ret = get_errno(safe_copy_file_range(arg1, pinoff, arg3, poutoff,
|
||||
arg5, arg6));
|
||||
(abi_ulong)arg5, arg6));
|
||||
if (!is_error(ret) && ret > 0) {
|
||||
if (arg2) {
|
||||
if (put_user_u64(inoff, arg2)) {
|
||||
|
Loading…
Reference in New Issue
Block a user