Do not stop iovec conversion on iov_base == NULL if iov_len is 0 --- linux-user/syscall.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d099e97..5dc6594 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1028,7 +1028,7 @@ static abi_long lock_iovec(int type, struct iovec *vec,
abi_ulong target_addr,
base = tswapl(target_vec[i].iov_base);
vec[i].iov_len = tswapl(target_vec[i].iov_len);
vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
- if (!vec[i].iov_base)
+ if (!vec[i].iov_base && vec[i].iov_len)
goto fail;
}
unlock_user (target_vec, target_addr, 0);
--
Regards, Kirill A. Shutemov
+ Belarus, Minsk
+ Velesys Ltd, http://www.velesys.com/
+ ALT Linux Team, http://www.altlinux.com/
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