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audit/stable-4.18 PR 20180814

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Merge tag 'audit-pr-20180814' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit patches from Paul Moore:
 "Twelve audit patches for v4.19 and they run the full gamut from fixes
  to features.

  Notable changes include the ability to use the "exe" audit filter
  field in a wider variety of filter types, a fix for our comparison of
  GID/EGID in audit filter rules, better association of related audit
  records (connecting related audit records together into one audit
  event), and a fix for a potential use-after-free in audit_add_watch().

  All the patches pass the audit-testsuite and merge cleanly on your
  current master branch"

* tag 'audit-pr-20180814' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: fix use-after-free in audit_add_watch
  audit: use ktime_get_coarse_real_ts64() for timestamps
  audit: use ktime_get_coarse_ts64() for time access
  audit: simplify audit_enabled check in audit_watch_log_rule_change()
  audit: check audit_enabled in audit_tree_log_remove_rule()
  cred: conditionally declare groups-related functions
  audit: eliminate audit_enabled magic number comparison
  audit: rename FILTER_TYPE to FILTER_EXCLUDE
  audit: Fix extended comparison of GID/EGID
  audit: tie ANOM_ABEND records to syscall
  audit: tie SECCOMP records to syscall
  audit: allow other filter list types for AUDIT_EXE
This commit is contained in:
Linus Torvalds 2018-08-15 10:46:54 -07:00
commit 8c32685030
12 changed files with 67 additions and 45 deletions
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14
kernel/auditsc.c
View file

@ -494,20 +494,20 @@ static int audit_filter_rules(struct task_struct *tsk,
result = audit_gid_comparator(cred->gid, f->op, f->gid);
if (f->op == Audit_equal) {
if (!result)
result = in_group_p(f->gid);
result = groups_search(cred->group_info, f->gid);
} else if (f->op == Audit_not_equal) {
if (result)
result = !in_group_p(f->gid);
result = !groups_search(cred->group_info, f->gid);
}
break;
case AUDIT_EGID:
result = audit_gid_comparator(cred->egid, f->op, f->gid);
if (f->op == Audit_equal) {
if (!result)
result = in_egroup_p(f->gid);
result = groups_search(cred->group_info, f->gid);
} else if (f->op == Audit_not_equal) {
if (result)
result = !in_egroup_p(f->gid);
result = !groups_search(cred->group_info, f->gid);
}
break;
case AUDIT_SGID:
@ -1544,10 +1544,10 @@ void __audit_syscall_entry(int major, unsigned long a1, unsigned long a2,
context->argv[2] = a3;
context->argv[3] = a4;
context->serial = 0;
context->ctime = current_kernel_time64();
context->in_syscall = 1;
context->current_state = state;
context->ppid = 0;
ktime_get_coarse_real_ts64(&context->ctime);
}
/**
@ -2466,7 +2466,7 @@ void audit_core_dumps(long signr)
if (signr == SIGQUIT) /* don't care for those */
return;
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_ANOM_ABEND);
ab = audit_log_start(audit_context(), GFP_KERNEL, AUDIT_ANOM_ABEND);
if (unlikely(!ab))
return;
audit_log_task(ab);
@ -2490,7 +2490,7 @@ void audit_seccomp(unsigned long syscall, long signr, int code)
{
struct audit_buffer *ab;
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_SECCOMP);
ab = audit_log_start(audit_context(), GFP_KERNEL, AUDIT_SECCOMP);
if (unlikely(!ab))
return;
audit_log_task(ab);