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audit/stable-5.16 PR 20211101

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Merge tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Add some additional audit logging to capture the openat2() syscall
  open_how struct info.

  Previous variations of the open()/openat() syscalls allowed audit
  admins to inspect the syscall args to get the information contained in
  the new open_how struct used in openat2()"

* tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: return early if the filter rule has a lower priority
  audit: add OPENAT2 record to list "how" info
  audit: add support for the openat2 syscall
  audit: replace magic audit syscall class numbers with macros
  lsm_audit: avoid overloading the "key" audit field
  audit: Convert to SPDX identifier
  audit: rename struct node to struct audit_node to prevent future name collisions
This commit is contained in:
Linus Torvalds 2021-11-01 21:17:39 -07:00
commit d2fac0afe8
23 changed files with 184 additions and 98 deletions
Download patch file Download diff file Expand all files Collapse all files

11
include/linux/audit.h
View file

@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/audit_arch.h>
#include <uapi/linux/audit.h>
#include <uapi/linux/netfilter/nf_tables.h>
@ -416,6 +417,7 @@ extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
const struct cred *old);
extern void __audit_log_capset(const struct cred *new, const struct cred *old);
extern void __audit_mmap_fd(int fd, int flags);
extern void __audit_openat2_how(struct open_how *how);
extern void __audit_log_kern_module(char *name);
extern void __audit_fanotify(unsigned int response);
extern void __audit_tk_injoffset(struct timespec64 offset);
@ -512,6 +514,12 @@ static inline void audit_mmap_fd(int fd, int flags)
__audit_mmap_fd(fd, flags);
}
static inline void audit_openat2_how(struct open_how *how)
{
if (unlikely(!audit_dummy_context()))
__audit_openat2_how(how);
}
static inline void audit_log_kern_module(char *name)
{
if (!audit_dummy_context())
@ -671,6 +679,9 @@ static inline void audit_log_capset(const struct cred *new,
static inline void audit_mmap_fd(int fd, int flags)
{ }
static inline void audit_openat2_how(struct open_how *how)
{ }
static inline void audit_log_kern_module(char *name)
{
}