Warning in Security Advisor: "Could not open /proc/1/smaps"

rodrocolodro

• October 10, 2015 11:36

Dear Staff ans community I just install a new CentOS + cPanel and I have a warning than I never seen before. The Message is:
An error occurred while attempting to check whether running executables are up-to-date: Could not open /proc/1/smaps Could not open /proc/2/smaps Could not open /proc/3/smaps Could not open /proc/4/smaps Could not open /proc/5/smaps Could not open /proc/7/smaps Could not open /proc/8/smaps Could not open /proc/9/smaps Could not open /proc/10/smaps Could not open /proc/11/smaps Could not open /proc/12/smaps Could not open /proc/13/smaps Could not open /proc/14/smaps Could not open /proc/15/smaps Could not open /proc/17/smaps Could not open /proc/18/smaps Could not open /proc/19/smaps Could not open /proc/20/smaps Could not open /proc/21/smaps Could...
I don;t want to start this server until to be sure this is solve and if this can be a problem in the future. I would appreciate your assistance Thanks!

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  24x7server

  • October 11, 2015 09:58

  Hello, Which CentOS version you have installed on your server ? Also please try to run upcp on your server with the following command
  /scripts/upcp --force
  

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  rodrocolodro

  • October 11, 2015 11:51

  Hello, I have this: CENTOS 6.7 x86_64 / WHM 11.50.1 (build 3) Let me know and thanks!

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  cPanelMichael

  • October 12, 2015 19:49

  Hello :) It's likely this stems from the use of an unsupported kernel. Please post the output from the following command:
  uname -r
  Thank you.

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  rodrocolodro

  • October 13, 2015 13:51

  Hello! Here is result: 3.14.32-xxxx-grs-ipv6-64 Thank you for your help!

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  cPanelMichael

  • October 13, 2015 15:10

  While many customers successfully utilize grsec kernels and cPanel/WHM works as expected, they are not officially supported. Grsecurity disables /proc//smaps for security reasons, so it's expected that you see those warning messages. Thank you.

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  rodrocolodro

  • October 13, 2015 21:30

  I understand, this means that I should not worry about this? Thanks a lot!

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  cPanelMichael

  • October 13, 2015 21:40

  Right, the option you are attempting to use is not compatible with the custom kernel that's installed on your server. Thus, you would need to use a standard kernel if you wanted to use that option on your system. Thank you.

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  rodrocolodro

  • October 13, 2015 23:41

  Thank you very much Michael Have a nice day!

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  Julien Gobi

  • May 18, 2016 19:42

  Hi! Since the last update I receive these emails too. My server uses this kernel: 3.14.32-xxxx-grs-ipv6-64 Is it possible to mute these alerts ? Thank you. j.

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  cPanelMichael

  • May 23, 2016 17:42

  Hi! Since the last update I receive these emails too. My server uses this kernel: 3.14.32-xxxx-grs-ipv6-64 Is it possible to mute these alerts ?

  
  Internal case CPANEL-6077 is open to address this by ensuring the warning message is not displayed on systems with Grsec kernels installed. The current workaround is to ignore the warning message, or create an email filter that discards this particular notification based on message body content. Thank you.

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  bouvrie

  • June 03, 2016 07:20

  The current workaround is to ignore the warning message, or create an email filter that discards this particular notification based on message body content.

  
  BE CAREFUL creating such an email filter. Just because the email contains "An error occurred while attempting to check whether running executables are up-to-date", doesn't mean that is the only one single notification in that email. By discarding such mails, you could miss other notifications. For this reason, it would also be helpful to be able to count the number of notifications in the notifications e-mail, but sadly there's no body text along the lines of "Showing X notifications:" to properly enable such email filters.

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