From: Peter Hurley <[email protected]> Subject: ipc: fix potential oops when src msg > 4k w/ MSG_COPY
If the src msg is > 4k, then dest->next points to the next allocated segment; resetting it just prior to dereferencing is bad. Signed-off-by: Peter Hurley <[email protected]> Acked-by: Stanislav Kinsbursky <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> --- ipc/msgutil.c | 3 --- 1 file changed, 3 deletions(-) diff -puN ipc/msgutil.c~ipc-fix-potential-oops-when-src-msg-4k-w-msg_copy ipc/msgutil.c --- a/ipc/msgutil.c~ipc-fix-potential-oops-when-src-msg-4k-w-msg_copy +++ a/ipc/msgutil.c @@ -117,9 +117,6 @@ struct msg_msg *copy_msg(struct msg_msg if (alen > DATALEN_MSG) alen = DATALEN_MSG; - dst->next = NULL; - dst->security = NULL; - memcpy(dst + 1, src + 1, alen); len -= alen; _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
