[Bug 60533] System became terrible unresponsible during swap process

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60533

--- Comment #26 from lct at mail.ru ---
Basically, this is a REMOTE KILLSWITCH for *any* affected (any open driver)
Linux system, if it has a browser.

I don't understand why its "enhancement"?!

Its crystal clear how it works - by requesting allocation of huge amount of
graphical data via html (image decompression bomb, similar to old tar bombs but
via JPG or similar) to a browser, it causes massive requests for RAM/GEM
objects. This causes typical symptoms of RAM shortage: drop and termination of
caches, reallocation of large parts of kernel into swap (making whole system
extremely slow), termination of running userspace applications and refusal to
execute any new ones.

These requests go completely through any of limiters.

Which means - send *any* target Linux system, known to use open driver, a link
to a crafted html web page, and it will cease to function in a matter of
seconds and will not recover by itself. Unless its equipped with a hexabyte of
RAM - then it would survive for a minute.

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