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| author | Jan Kara <jack@suse.cz> | 2015-06-02 17:08:29 +0200 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2015-06-11 21:49:54 +0200 |
| commit | 0b08c5e59441d08ab4b5e72afefd5cd98a4d83df (patch) | |
| tree | ad90ee6ce9a6f59f566afbbeeee02c655aef13b6 /kernel/auditsc.c | |
| parent | audit: obsolete audit_context check is removed in audit_filter_rules() (diff) | |
| download | linux-0b08c5e59441d08ab4b5e72afefd5cd98a4d83df.tar.xz linux-0b08c5e59441d08ab4b5e72afefd5cd98a4d83df.zip | |
audit: Fix check of return value of strnlen_user()
strnlen_user() returns 0 when it hits fault, not -1. Fix the test in
audit_log_single_execve_arg(). Luckily this shouldn't ever happen unless
there's a kernel bug so it's mostly a cosmetic fix.
CC: Paul Moore <pmoore@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'kernel/auditsc.c')
| -rw-r--r-- | kernel/auditsc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index d81424fbec3a..f6bc31e7dca9 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1021,7 +1021,7 @@ static int audit_log_single_execve_arg(struct audit_context *context, * for strings that are too long, we should not have created * any. */ - if (unlikely((len == -1) || len > MAX_ARG_STRLEN - 1)) { + if (unlikely((len == 0) || len > MAX_ARG_STRLEN - 1)) { WARN_ON(1); send_sig(SIGKILL, current, 0); return -1; |