From ca96a895a6bae7efe7b11a35d9f43e6228467562 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Fri, 9 Jan 2009 16:44:16 +0100 Subject: audit: EXECVE record - removed bogus newline (updated) Added hunk that changes the comment, the rest is the same. EXECVE records contain a newline after every argument. auditd converts "\n" to " " so you cannot see newlines even in raw logs, but they're there nevertheless. If you're not using auditd, you need to work round them. These '\n' chars are can be easily replaced by spaces when creating record in kernel. Note there is no need for trailing '\n' in an audit record. record before this patch: "type=EXECVE msg=audit(1231421801.566:31): argc=4 a0=\"./test\"\na1=\"a\"\na2=\"b\"\na3=\"c\"\n" record after this patch: "type=EXECVE msg=audit(1231421801.566:31): argc=4 a0=\"./test\" a1=\"a\" a2=\"b\" a3=\"c\"" Signed-off-by: Jiri Pirko Acked-by: Eric Paris Signed-off-by: Al Viro --- kernel/auditsc.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'kernel/auditsc.c') diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 2bfc64786765..738c03695b79 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1024,7 +1024,7 @@ static int audit_log_single_execve_arg(struct audit_context *context, { char arg_num_len_buf[12]; const char __user *tmp_p = p; - /* how many digits are in arg_num? 3 is the length of a=\n */ + /* how many digits are in arg_num? 3 is the length of " a=" */ size_t arg_num_len = snprintf(arg_num_len_buf, 12, "%d", arg_num) + 3; size_t len, len_left, to_send; size_t max_execve_audit_len = MAX_EXECVE_AUDIT_LEN; @@ -1110,7 +1110,7 @@ static int audit_log_single_execve_arg(struct audit_context *context, * so we can be sure nothing was lost. */ if ((i == 0) && (too_long)) - audit_log_format(*ab, "a%d_len=%zu ", arg_num, + audit_log_format(*ab, " a%d_len=%zu", arg_num, has_cntl ? 2*len : len); /* @@ -1130,7 +1130,7 @@ static int audit_log_single_execve_arg(struct audit_context *context, buf[to_send] = '\0'; /* actually log it */ - audit_log_format(*ab, "a%d", arg_num); + audit_log_format(*ab, " a%d", arg_num); if (too_long) audit_log_format(*ab, "[%d]", i); audit_log_format(*ab, "="); @@ -1138,7 +1138,6 @@ static int audit_log_single_execve_arg(struct audit_context *context, audit_log_n_hex(*ab, buf, to_send); else audit_log_format(*ab, "\"%s\"", buf); - audit_log_format(*ab, "\n"); p += to_send; len_left -= to_send; @@ -1166,7 +1165,7 @@ static void audit_log_execve_info(struct audit_context *context, p = (const char __user *)axi->mm->arg_start; - audit_log_format(*ab, "argc=%d ", axi->argc); + audit_log_format(*ab, "argc=%d", axi->argc); /* * we need some kernel buffer to hold the userspace args. Just -- cgit v1.2.2