diff options
| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2014-01-13 13:33:09 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-13 11:51:08 -0800 |
| commit | cd1188e7a59ca6c03cab5fe490bf18888a3ca5dc (patch) | |
| tree | 0190e9cc1c4755e196580ebe407525e9b87f715e | |
| parent | 559316545580bbc61cf839e164c8a4c871c6ba42 (diff) | |
audit: correct a type mismatch in audit_syscall_exit()
commit 06bdadd7634551cfe8ce071fe44d0311b3033d9e upstream.
audit_syscall_exit() saves a result of regs_return_value() in intermediate
"int" variable and passes it to __audit_syscall_exit(), which expects its
second argument as a "long" value. This will result in truncating the
value returned by a system call and making a wrong audit record.
I don't know why gcc compiler doesn't complain about this, but anyway it
causes a problem at runtime on arm64 (and probably most 64-bit archs).
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/audit.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/audit.h b/include/linux/audit.h index 4f334d51b38b..acc4ff3702cf 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -487,7 +487,7 @@ static inline void audit_syscall_exit(void *pt_regs) { if (unlikely(current->audit_context)) { int success = is_syscall_success(pt_regs); - int return_code = regs_return_value(pt_regs); + long return_code = regs_return_value(pt_regs); __audit_syscall_exit(success, return_code); } |