[Buildroot] [Bug 12241] New: Permission denied while running "make"

[Buildroot] [Bug 12241] New: Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

            Bug ID: 12241
           Summary: Permission denied while running "make"
           Product: buildroot
           Version: 2019.08
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at buildroot.uclibc.org
          Reporter: ceremcem at ceremcem.net
                CC: buildroot at uclibc.org
  Target Milestone: ---

I'm getting the following error when I run "make": 


 INSTALL include/linux/iio (2 files)
  INSTALL include/linux/isdn (1 file)
  INSTALL include/linux/mmc (1 file)
  INSTALL include/linux/netfilter (88 files)
  INSTALL include/linux/netfilter_arp (2 files)
  INSTALL include/linux/netfilter_bridge (17 files)
  INSTALL include/linux/netfilter_ipv4 (9 files)
  INSTALL include/linux/netfilter/ipset (4 files)
  INSTALL include/linux/netfilter_ipv6 (13 files)
  INSTALL include/linux/nfsd (5 files)
  INSTALL include/linux/raid (2 files)
  INSTALL include/linux/sched (1 file)
  INSTALL include/linux/spi (1 file)
  INSTALL include/linux/sunrpc (1 file)
  INSTALL include/linux/tc_act (15 files)
  INSTALL include/linux/tc_ematch (5 files)
  INSTALL include/linux/usb (13 files)
  INSTALL include/linux/wimax (1 file)
  INSTALL include/asm (38 files)
make[1]: Leaving directory
'/home/ceremcem/sync/curr-projects/scada-gateway/os/disk-images/rpi-buildroot/output/build/linux-headers-4.19.38'
if ! support/scripts/check-kernel-headers.sh 
/home/ceremcem/sync/curr-projects/scada-gateway/os/disk-images/rpi-buildroot/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot
 4.19; then exit 1; fi
support/scripts/check-kernel-headers.sh: 38:
support/scripts/check-kernel-headers.sh: /tmp/check-headers.rQZuHv: Permission
denied
make: *** [package/pkg-generic.mk:283:
/home/ceremcem/sync/curr-projects/scada-gateway/os/disk-images/rpi-buildroot/output/build/linux-headers-4.19.38/.stamp_staging_installed]
Error 1

-----------------


I'm using a git clone: cd8ab1853d (HEAD -> latest-release, tag: 2019.08-rc3)
Update for 2019.08-rc3

Host is: Linux cca-erik 4.19.0-1-amd64 #1 SMP Debian 4.19.12-1 (2018-12-22)
x86_64 GNU/Linux

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Cerem Cem ASLAN <ceremcem@ceremcem.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|All                         |PC
           Severity|normal                      |blocker

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
I'm afraid this does not look like a Buildroot issue, but a system
configuration issue on your machine: /tmp is not writable by the user with
which you're doing the Buildroot build. Could you try to just run "touch
/tmp/foobar" ? I guess you'll get the same Permission denied issue. If it's the
case, then you have to fix your system /tmp permissions.

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

--- Comment #2 from Cerem Cem ASLAN <ceremcem@ceremcem.net> ---
"touch /tmp/foobar" works correctly:

ceremcem at cca-erik:~$ touch /tmp/foobar
ceremcem at cca-erik:~$ ls -l /tmp/foobar
-rw-r--r-- 1 ceremcem ceremcem 0 Sep 20 03:04 /tmp/foobar


FYI: I've been using this installation for more than 2 years without any issue.

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

--- Comment #3 from Carlos Santos <unixmania@gmail.com> ---
(In reply to Cerem Cem ASLAN from comment #2)

Is your /tmp mounted with "noexec" option? What's the output of the command

    mount | grep -F /tmp

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Cerem Cem ASLAN <ceremcem@ceremcem.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #4 from Cerem Cem ASLAN <ceremcem@ceremcem.net> ---
Exactly: 

ceremcem at cca-erik:~$  mount | grep -F /tmp
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noexec,noatime,size=524288k)


I remounted with "exec": 

sudo mount -o remount,exec /tmp

Then compilation continued. Would you consider adding that checking into
makefile? (I may provide a patch for that)

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

--- Comment #5 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
(In reply to Carlos Santos from comment #3)
Good finding Carlos! Is mounting /tmp with noexec a common thing? From a quick
Google search seems like a number of people are recommending to do this. Not
sure if this is good advice.

But, for this specific case, Buildroot generally puts all its generated
contents in $(O), even temporary things. Perhaps we should do the same for this
check-headers script?

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Carlos Santos <unixmania@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
           Assignee|unassigned at buildroot.uclibc |unixmania at gmail.com
                   |.org                        |
         Resolution|FIXED                       |---

--- Comment #6 from Carlos Santos <unixmania@gmail.com> ---
(In reply to Thomas Petazzoni from comment #5)

Some people recommend mounting /tmp with nodev, noexec and nosuid options for
security reasons. It is pretty common on FreeBSD but it's not default on Linux
distros.

I will send a patch for check-kernel-headers.sh to fix this.

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Carlos Santos <unixmania@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocker                     |normal

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Carlos Santos <unixmania@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unixmania at gmail.com         |unassigned at buildroot.uclibc
                   |                            |.org

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[Buildroot] [Bug 12241] Permission denied while running "make"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12241

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Fixed by
https://git.buildroot.org/buildroot/commit/?id=6136765b23abd9faba610dd54ed276a777811575.
Thanks Carlos for the investigation and fix!

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