irqba...linux(8)

👑 NAME

okay so quick vibe check bestie: irqbalance_unconfined_script_selinux — that's the Security Enhanced Linux Policy for the irqbalance_unconfined_script processes. that's it, that's the whole name 💅

(this one lives in the SELinux Policy irqbalance_unconfined_script manual, section 8, iykyk 🎀)

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the irqbalance_unconfined_script processes via flexible mandatory access control. no cap, that's literally its whole job 🫶

The irqbalance_unconfined_script processes execute with the irqbalance_unconfined_script_t SELinux type. wanna check if you've got these processes running? just run the ps command with the -Z qualifier, easy:

ps -eZ | grep irqbalance_unconfined_script_t

that's the whole vibe check, you're welcome 💖

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🌸 ENTRYPOINTS 🌸

so the irqbalance_unconfined_script_t SELinux type can be entered via the irqbalance_unconfined_script_exec_t file type. that's the doorway, bestie 🚪✨

the default entrypoint paths for the irqbalance_unconfined_script_t domain are the following:

/usr/libexec/irqbalance(/.*)?

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🦋 PROCESS TYPES 🦋

SELinux defines process types (domains) for each process running on the system. iconic behaviour honestly.

you can see the context of a process using the -Z option to ps. love that for us.

Policy governs the access confined processes have to files. SELinux irqbalance_unconfined_script policy is very flexible, allowing users to setup their irqbalance_unconfined_script processes in as secure a method as possible. flexible AND secure? main character energy fr fr 👑

the following process types are defined for irqbalance_unconfined_script:

• irqbalance_unconfined_script_t

Note: semanage permissive -a irqbalance_unconfined_script_t can be used to make the process type irqbalance_unconfined_script_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it's not a free pass, it's just a "we're still watching you" pass 😭 those AVC messages keep coming, no escape.

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💜 BOOLEANS 💜

SELinux policy is customizable based on least access required. irqbalance_unconfined_script policy is extremely flexible and has several booleans that allow you to manipulate the policy and run irqbalance_unconfined_script with the tightest access possible. tightest access possible = the goal, the dream, the aesthetic ✨

deny_execmem — if you want to deny user domains applications to map a memory region as both executable and writable, you must turn on the deny_execmem boolean. > okay real talk: this is dangerous and the executable should be reported in bugzilla. Disabled by default.

setsebool -P deny_execmem 1

mmap_low_allowed — if you want to control the ability to mmap a low area of the address space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on the mmap_low_allowed boolean. Disabled by default.

setsebool -P mmap_low_allowed 1

secure_mode_insmod — if you want to disable kernel module loading, you must turn on the secure_mode_insmod boolean. Disabled by default.

setsebool -P secure_mode_insmod 1

selinuxuser_execheap — if you want to allow unconfined executables to make their heap memory executable, you must turn on the selinuxuser_execheap boolean. > bestie no 😭 doing this is a really bad idea. probably indicates a badly coded executable, but could indicate an attack. this executable should be reported in bugzilla. Disabled by default.

setsebool -P selinuxuser_execheap 1

selinuxuser_execstack — if you want to allow unconfined executables to make their stack executable, you must turn on the selinuxuser_execstack boolean. > this should never, ever be necessary. probably indicates a badly coded executable, but could indicate an attack. this executable should be reported in bugzilla. Disabled by default.

setsebool -P selinuxuser_execstack 1

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🎀 MANAGED FILES 🎀

the SELinux process type irqbalance_unconfined_script_t can manage files labeled with the following file types. the paths listed are the default paths for these file types. > heads up: the processes UID still need to have DAC permissions, so no, this doesn't override everything 💀

file_type

• all files on the system

like. all of them. the whole system. okay go off 👑

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🌈 FILE CONTEXTS 🌈

SELinux requires files to have an extended attribute to define the file type. it's giving "labels are everything" 🏷️

you can see the context of a file using the -Z option to ls.

Policy governs the access confined processes have to these files. SELinux irqbalance_unconfined_script policy is very flexible, allowing users to setup their irqbalance_unconfined_script processes in as secure a method as possible. (yes it says that twice, it's committed to the bit and honestly? respect 💅)

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the irqbalance_unconfined_script. if you wanted to store files with these types in a different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. two steps, no skipping 🫶

semanage fcontext -a -t irqbalance_unconfined_script_exec_t '/srv/irqbalance_unconfined_script/content(/.*)?'
restorecon -R -v /srv/myirqbalance_unconfined_script_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 🌸

the following file types are defined for irqbalance_unconfined_script:

irqbalance_unconfined_script_exec_t

• set files with the irqbalance_unconfined_script_exec_t type, if you want to transition an executable to the irqbalance_unconfined_script_t domain.

Note: file context can be temporarily modified with the chcon command. if you want to permanently change the file context you need to use the semanage fcontext command. this will modify the SELinux labeling database. you will need to use restorecon to apply the labels. temporary vs permanent, know the difference bestie 😤

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🔥 COMMANDS 🔥

• semanage fcontext can also be used to manipulate default file context mappings.
• semanage permissive can also be used to manipulate whether or not a process type is permissive.
• semanage module can also be used to enable/disable/install/remove policy modules.
• semanage boolean can also be used to manipulate the booleans.
• system-config-selinux is a GUI tool available to customize SELinux policy settings. yes bestie, a whole GUI, for when the terminal is doing too much 🖱️✨

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💀 AUTHOR 💀

This manual page was auto-generated using sepolicy manpage . (not me being auto-generated and still serving looks 😭)

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🍓 SEE ALSO 🍓

selinux(8), irqbalance_unconfined_script(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

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okay that's the whole page babe, go forth and label responsibly 🧚💖

irqbalance_unconfined_script · 26-10-06 · irqba...linux(8) — mwah, signed off with love from your auto-generated sepolicy manpage bestie 💅🎀