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When the capset syscall is used it is not possible for audit to record the

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actual capbilities being added/removed.  This patch adds a new record type
which emits the target pid and the eff, inh, and perm cap sets.

example output if you audit capset syscalls would be:

type=SYSCALL msg=audit(1225743140.465:76): arch=c000003e syscall=126 success=yes exit=0 a0=17f2014 a1=17f201c a2=80000000 a3=7fff2ab7f060 items=0 ppid=2160 pid=2223 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="setcap" exe="/usr/sbin/setcap" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=UNKNOWN[1322] msg=audit(1225743140.465:76): pid=0 cap_pi=ffffffffffffffff cap_pp=ffffffffffffffff cap_pe=ffffffffffffffff

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Eric Paris 2008-11-11 21:48:22 +11:00 • committed by James Morris
parent 3fc689e96c
commit e68b75a027
3 changed files with 63 additions and 0 deletions
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5
kernel/capability.c
View file

@ -7,6 +7,7 @@
* 30 May 2002: Cleanup, Robert M. Love <rml@tech9.net>
*/
#include <linux/audit.h>
#include <linux/capability.h>
#include <linux/mm.h>
#include <linux/module.h>
@ -468,6 +469,10 @@ asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data)
i++;
}
ret = audit_log_capset(pid, &effective, &inheritable, &permitted);
if (ret)
return ret;
if (pid && (pid != task_pid_vnr(current)))
ret = do_sys_capset_other_tasks(pid, &effective, &inheritable,
&permitted);