A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

audit: rework execve audit

Browse source 
The purpose of audit_bprm() is to log the argv array to a userspace daemon at
the end of the execve system call.  Since user-space hasn't had time to run,
this array is still in pristine state on the process' stack; so no need to
copy it, we can just grab it from there.

In order to minimize the damage to audit_log_*() copy each string into a
temporary kernel buffer first.

Currently the audit code requires that the full argument vector fits in a
single packet.  So currently it does clip the argv size to a (sysctl) limit,
but only when execve auditing is enabled.

If the audit protocol gets extended to allow for multiple packets this check
can be removed.

Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Ollie Wild <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Peter Zijlstra 2007-07-19 01:48:15 -07:00 • committed by Linus Torvalds
commit bdf4c48af2
5 changed files with 85 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Documentation/filesystems/proc.txt
View file

@ -1065,6 +1065,13 @@ check the amount of free space (value is in seconds). Default settings are: 4,
resume it if we have a value of 3 or more percent; consider information about
the amount of free space valid for 30 seconds
audit_argv_kb
-------------
The file contains a single value denoting the limit on the argv array size
for execve (in KiB). This limit is only applied when system call auditing for
execve is enabled, otherwise the value is ignored.
ctrl-alt-del
------------