Why are the permissions on /usr/bin/x86_64-linux-gnu-as set to 750?
Compiling a simple program in Ubuntu 16.04 with gcc-5.4.0
:
$ cat tmp.c
#include <stdio.h>
int main()
{
printf("Hello World");
}
Yields the following error when trying to compile as a non-privileged user:
$ gcc tmp.c
gcc: error trying to exec 'as': execvp: Permission denied
If I look at the permissions of the assembler, as
:
$ ls -lt /usr/bin/as
lrwxrwxrwx 1 root root 19 Aug 30 09:39 /usr/bin/as -> x86_64-linux-gnu-as
$ ls -lt /usr/bin/x86_64-linux-gnu-as
-rwxr-x--- 1 root root 369480 Aug 30 09:39 /usr/bin/x86_64-linux-gnu-as
This is very strange. I can compile this program as root without the error.
QUESTION:
Why is the assembler have 750 permissions? How would it have gotten into this state. I can't imagine that Ubuntu comes like this by default.
permissions compiling assembler
add a comment |
Compiling a simple program in Ubuntu 16.04 with gcc-5.4.0
:
$ cat tmp.c
#include <stdio.h>
int main()
{
printf("Hello World");
}
Yields the following error when trying to compile as a non-privileged user:
$ gcc tmp.c
gcc: error trying to exec 'as': execvp: Permission denied
If I look at the permissions of the assembler, as
:
$ ls -lt /usr/bin/as
lrwxrwxrwx 1 root root 19 Aug 30 09:39 /usr/bin/as -> x86_64-linux-gnu-as
$ ls -lt /usr/bin/x86_64-linux-gnu-as
-rwxr-x--- 1 root root 369480 Aug 30 09:39 /usr/bin/x86_64-linux-gnu-as
This is very strange. I can compile this program as root without the error.
QUESTION:
Why is the assembler have 750 permissions? How would it have gotten into this state. I can't imagine that Ubuntu comes like this by default.
permissions compiling assembler
2
It likely would have gotten into that state by careless use of thechmod
command. Perhaps time to reinstall thebinutils
package?
– steeldriver
Feb 18 at 16:04
add a comment |
Compiling a simple program in Ubuntu 16.04 with gcc-5.4.0
:
$ cat tmp.c
#include <stdio.h>
int main()
{
printf("Hello World");
}
Yields the following error when trying to compile as a non-privileged user:
$ gcc tmp.c
gcc: error trying to exec 'as': execvp: Permission denied
If I look at the permissions of the assembler, as
:
$ ls -lt /usr/bin/as
lrwxrwxrwx 1 root root 19 Aug 30 09:39 /usr/bin/as -> x86_64-linux-gnu-as
$ ls -lt /usr/bin/x86_64-linux-gnu-as
-rwxr-x--- 1 root root 369480 Aug 30 09:39 /usr/bin/x86_64-linux-gnu-as
This is very strange. I can compile this program as root without the error.
QUESTION:
Why is the assembler have 750 permissions? How would it have gotten into this state. I can't imagine that Ubuntu comes like this by default.
permissions compiling assembler
Compiling a simple program in Ubuntu 16.04 with gcc-5.4.0
:
$ cat tmp.c
#include <stdio.h>
int main()
{
printf("Hello World");
}
Yields the following error when trying to compile as a non-privileged user:
$ gcc tmp.c
gcc: error trying to exec 'as': execvp: Permission denied
If I look at the permissions of the assembler, as
:
$ ls -lt /usr/bin/as
lrwxrwxrwx 1 root root 19 Aug 30 09:39 /usr/bin/as -> x86_64-linux-gnu-as
$ ls -lt /usr/bin/x86_64-linux-gnu-as
-rwxr-x--- 1 root root 369480 Aug 30 09:39 /usr/bin/x86_64-linux-gnu-as
This is very strange. I can compile this program as root without the error.
QUESTION:
Why is the assembler have 750 permissions? How would it have gotten into this state. I can't imagine that Ubuntu comes like this by default.
permissions compiling assembler
permissions compiling assembler
asked Feb 18 at 15:57
irritable_phd_syndromirritable_phd_syndrom
1011
1011
2
It likely would have gotten into that state by careless use of thechmod
command. Perhaps time to reinstall thebinutils
package?
– steeldriver
Feb 18 at 16:04
add a comment |
2
It likely would have gotten into that state by careless use of thechmod
command. Perhaps time to reinstall thebinutils
package?
– steeldriver
Feb 18 at 16:04
2
2
It likely would have gotten into that state by careless use of the
chmod
command. Perhaps time to reinstall the binutils
package?– steeldriver
Feb 18 at 16:04
It likely would have gotten into that state by careless use of the
chmod
command. Perhaps time to reinstall the binutils
package?– steeldriver
Feb 18 at 16:04
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1119264%2fwhy-are-the-permissions-on-usr-bin-x86-64-linux-gnu-as-set-to-750%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1119264%2fwhy-are-the-permissions-on-usr-bin-x86-64-linux-gnu-as-set-to-750%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
2
It likely would have gotten into that state by careless use of the
chmod
command. Perhaps time to reinstall thebinutils
package?– steeldriver
Feb 18 at 16:04