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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-31 20:08:44 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-31 20:08:44 +0200
commitd266b3f5cac09434eb624af202f9a31307b34a88 (patch)
treed773c0a422644c9e1e91fc2d89db898e4b4e956a /security/integrity/ima
parentMerge tag 'for-linus-5.2b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kern... (diff)
parentima: show rules with IMA_INMASK correctly (diff)
downloadlinux-d266b3f5cac09434eb624af202f9a31307b34a88.tar.xz
linux-d266b3f5cac09434eb624af202f9a31307b34a88.zip
Merge branch 'next-fixes-for-5.2-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem fixes from Mimi Zohar: "Four bug fixes, none 5.2-specific, all marked for stable. The first two are related to the architecture specific IMA policy support. The other two patches, one is related to EVM signatures, based on additional hash algorithms, and the other is related to displaying the IMA policy" * 'next-fixes-for-5.2-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: ima: show rules with IMA_INMASK correctly evm: check hash algorithm passed to init_desc() ima: fix wrong signed policy requirement when not appraising x86/ima: Check EFI_RUNTIME_SERVICES before using
Diffstat (limited to 'security/integrity/ima')
-rw-r--r--security/integrity/ima/ima_policy.c28
1 files changed, 16 insertions, 12 deletions
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index e0cc323f948f..1cc822a59054 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -498,10 +498,11 @@ static void add_rules(struct ima_rule_entry *entries, int count,
list_add_tail(&entry->list, &ima_policy_rules);
}
- if (entries[i].action == APPRAISE)
+ if (entries[i].action == APPRAISE) {
temp_ima_appraise |= ima_appraise_flag(entries[i].func);
- if (entries[i].func == POLICY_CHECK)
- temp_ima_appraise |= IMA_APPRAISE_POLICY;
+ if (entries[i].func == POLICY_CHECK)
+ temp_ima_appraise |= IMA_APPRAISE_POLICY;
+ }
}
}
@@ -1146,10 +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),
@@ -1209,6 +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();
@@ -1232,15 +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, " ");
}