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audit: Move audit_log_task declaration under CONFIG_AUDITSYSCALL

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The 0-DAY found that audit_log_task is not declared under
CONFIG_AUDITSYSCALL which causes compilation error when
it is not defined:

    kernel/bpf/syscall.o: In function `bpf_audit_prog.isra.30':
 >> syscall.c:(.text+0x860): undefined reference to `audit_log_task'

Adding the audit_log_task declaration and stub within
CONFIG_AUDITSYSCALL ifdef.

Fixes: 91e6015b08 ("bpf: Emit audit messages upon successful prog load and unload")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Olsa 2019-11-21 16:58:53 +01:00 committed by David S. Miller
parent 43da14110c
commit 7599a896f2
1 changed files with 5 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
include/linux/audit.h
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@ -159,7 +159,6 @@ extern void audit_log_key(struct audit_buffer *ab,
extern void audit_log_link_denied(const char *operation); extern void audit_log_link_denied(const char *operation);
extern void audit_log_lost(const char *message); extern void audit_log_lost(const char *message);
extern void audit_log_task(struct audit_buffer *ab);
extern int audit_log_task_context(struct audit_buffer *ab); extern int audit_log_task_context(struct audit_buffer *ab);
extern void audit_log_task_info(struct audit_buffer *ab); extern void audit_log_task_info(struct audit_buffer *ab);
@ -220,8 +219,6 @@ static inline void audit_log_key(struct audit_buffer *ab, char *key)
{ } { }
static inline void audit_log_link_denied(const char *string) static inline void audit_log_link_denied(const char *string)
{ } { }
static inline void audit_log_task(struct audit_buffer *ab)
{ }
static inline int audit_log_task_context(struct audit_buffer *ab) static inline int audit_log_task_context(struct audit_buffer *ab)
{ {
return 0; return 0;
@ -361,6 +358,8 @@ static inline void audit_ptrace(struct task_struct *t)
__audit_ptrace(t); __audit_ptrace(t);
} }
extern void audit_log_task(struct audit_buffer *ab);
/* Private API (for audit.c only) */ /* Private API (for audit.c only) */
extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode); extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
@ -648,6 +647,9 @@ static inline void audit_ntp_log(const struct audit_ntp_data *ad)
static inline void audit_ptrace(struct task_struct *t) static inline void audit_ptrace(struct task_struct *t)
{ } { }
static inline void audit_log_task(struct audit_buffer *ab)
{ }
#define audit_n_rules 0 #define audit_n_rules 0
#define audit_signals 0 #define audit_signals 0
#endif /* CONFIG_AUDITSYSCALL */ #endif /* CONFIG_AUDITSYSCALL */