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authorJohn Johansen <john.johansen@canonical.com>2012-02-22 00:42:08 -0800
committerJohn Johansen <john.johansen@canonical.com>2012-02-27 11:38:22 -0800
commit38305a4bab4be5d278443b057f7f5e97afb07f26 (patch)
tree06122a0380bc06de07c2b462bfa2f306ab12af87 /security
parent8b964eae204d791421677ec56b94a7b18cf8740d (diff)
downloadlinaro-lsk-38305a4bab4be5d278443b057f7f5e97afb07f26.tar.gz
AppArmor: fix mapping of META_READ to audit and quiet flags
The mapping of AA_MAY_META_READ for the allow mask was also being mapped to the audit and quiet masks. This would result in some operations being audited when the should not. This flaw was hidden by the previous audit bug which would drop some messages that where supposed to be audited. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Kees Cook <kees@ubuntu.com>
Diffstat (limited to 'security')
-rw-r--r--security/apparmor/file.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/security/apparmor/file.c b/security/apparmor/file.c
index 7312db74121..bba875c4d06 100644
--- a/security/apparmor/file.c
+++ b/security/apparmor/file.c
@@ -173,8 +173,6 @@ static u32 map_old_perms(u32 old)
if (old & 0x40) /* AA_EXEC_MMAP */
new |= AA_EXEC_MMAP;
- new |= AA_MAY_META_READ;
-
return new;
}
@@ -212,6 +210,7 @@ static struct file_perms compute_perms(struct aa_dfa *dfa, unsigned int state,
perms.quiet = map_old_perms(dfa_other_quiet(dfa, state));
perms.xindex = dfa_other_xindex(dfa, state);
}
+ perms.allow |= AA_MAY_META_READ;
/* change_profile wasn't determined by ownership in old mapping */
if (ACCEPT_TABLE(dfa)[state] & 0x80000000)