From: Roberto Sassu roberto.sassu@huawei.com
commit 8cdc23a3d9ec0944000ad43bad588e36afdc38cd upstream.
Show the '^' character when a policy rule has flag IMA_INMASK.
Fixes: 80eae209d63ac ("IMA: allow reading back the current IMA policy") Signed-off-by: Roberto Sassu roberto.sassu@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Mimi Zohar zohar@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- security/integrity/ima/ima_policy.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-)
--- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -964,10 +964,10 @@ enum { };
static const char *const mask_tokens[] = { - "MAY_EXEC", - "MAY_WRITE", - "MAY_READ", - "MAY_APPEND" + "^MAY_EXEC", + "^MAY_WRITE", + "^MAY_READ", + "^MAY_APPEND" };
#define __ima_hook_stringify(str) (#str), @@ -1027,6 +1027,7 @@ int ima_policy_show(struct seq_file *m, struct ima_rule_entry *entry = v; int i; char tbuf[64] = {0,}; + int offset = 0;
rcu_read_lock();
@@ -1046,15 +1047,17 @@ int ima_policy_show(struct seq_file *m, if (entry->flags & IMA_FUNC) policy_func_show(m, entry->func);
- if (entry->flags & IMA_MASK) { + if ((entry->flags & IMA_MASK) || (entry->flags & IMA_INMASK)) { + if (entry->flags & IMA_MASK) + offset = 1; if (entry->mask & MAY_EXEC) - seq_printf(m, pt(Opt_mask), mt(mask_exec)); + seq_printf(m, pt(Opt_mask), mt(mask_exec) + offset); if (entry->mask & MAY_WRITE) - seq_printf(m, pt(Opt_mask), mt(mask_write)); + seq_printf(m, pt(Opt_mask), mt(mask_write) + offset); if (entry->mask & MAY_READ) - seq_printf(m, pt(Opt_mask), mt(mask_read)); + seq_printf(m, pt(Opt_mask), mt(mask_read) + offset); if (entry->mask & MAY_APPEND) - seq_printf(m, pt(Opt_mask), mt(mask_append)); + seq_printf(m, pt(Opt_mask), mt(mask_append) + offset); seq_puts(m, " "); }