linux/kernel/module/tracking.c, branch v5.19Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v5.192022-05-12T17:29:41Zmodule: Introduce module unload taint tracking2022-05-12T17:29:41ZAaron Tomlinatomlin@redhat.com2022-05-02T20:52:52Zurn:sha1:99bd9956551b27cb6f5b445abaced7e13b9976cd
Currently, only the initial module that tainted the kernel is
recorded e.g. when an out-of-tree module is loaded.
The purpose of this patch is to allow the kernel to maintain a record of
each unloaded module that taints the kernel. So, in addition to
displaying a list of linked modules (see print_modules()) e.g. in the
event of a detected bad page, unloaded modules that carried a taint/or
taints are displayed too. A tainted module unload count is maintained.
The number of tracked modules is not fixed. This feature is disabled by
default.
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>