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| author | Roberto Sassu <roberto.sassu@huawei.com> | 2019-05-29 15:30:35 +0200 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.ibm.com> | 2019-05-30 05:18:25 +0200 |
| commit | 8cdc23a3d9ec0944000ad43bad588e36afdc38cd (patch) | |
| tree | e36e1d077ed05831ab7de39f82eaead5214e2290 /security | |
| parent | evm: check hash algorithm passed to init_desc() (diff) | |
| download | linux-8cdc23a3d9ec0944000ad43bad588e36afdc38cd.tar.xz linux-8cdc23a3d9ec0944000ad43bad588e36afdc38cd.zip | |
ima: show rules with IMA_INMASK correctly
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>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/ima/ima_policy.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 0f6fe53cef09..1cc822a59054 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -1147,10 +1147,10 @@ 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), @@ -1210,6 +1210,7 @@ int ima_policy_show(struct seq_file *m, void *v) struct ima_rule_entry *entry = v; int i; char tbuf[64] = {0,}; + int offset = 0; rcu_read_lock(); @@ -1233,15 +1234,17 @@ int ima_policy_show(struct seq_file *m, void *v) 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, " "); } |