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Allow ptrace to any process of the same user

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Allows users to attach GDB to their own processes, without requiring
running the program with GDB from the start. It is only available in
compute nodes, the storage nodes continue with the restricted settings.

Reviewed-by: Aleix Boné <abonerib@bsc.es>
This commit is contained in:
Rodrigo Arias 2024-07-17 13:10:59 +02:00
parent 6e87130166
commit fcfc6ac149
3 changed files with 12 additions and 0 deletions
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4
m/bay/configuration.nix
View File

@ -9,6 +9,10 @@
# Select the this using the ID to avoid mismatches # Select the this using the ID to avoid mismatches
boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53562d"; boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53562d";
boot.kernel.sysctl = {
"kernel.yama.ptrace_scope" = lib.mkForce "1";
};
environment.systemPackages = with pkgs; [ environment.systemPackages = with pkgs; [
ceph ceph
]; ];

4
m/common/base/boot.nix
View File

@ -19,6 +19,10 @@
boot.kernel.sysctl = { boot.kernel.sysctl = {
"kernel.perf_event_paranoid" = lib.mkDefault "-1"; "kernel.perf_event_paranoid" = lib.mkDefault "-1";
# Allow ptracing (i.e. attach with GDB) any process of the same user, see:
# https://www.kernel.org/doc/Documentation/security/Yama.txt
"kernel.yama.ptrace_scope" = "0";
}; };
boot.kernelPackages = pkgs.linuxPackages_latest; boot.kernelPackages = pkgs.linuxPackages_latest;

4
m/lake2/configuration.nix
View File

@ -8,6 +8,10 @@
boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53563a"; boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53563a";
boot.kernel.sysctl = {
"kernel.yama.ptrace_scope" = lib.mkForce "1";
};
environment.systemPackages = with pkgs; [ environment.systemPackages = with pkgs; [
ceph ceph
]; ];