From: John Johansen Date: Wed, 22 Feb 2012 08:42:08 +0000 (-0800) Subject: AppArmor: fix mapping of META_READ to audit and quiet flags X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=38305a4bab4be5d278443b057f7f5e97afb07f26;p=linux-beck.git 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 Acked-by: Kees Cook --- diff --git a/security/apparmor/file.c b/security/apparmor/file.c index 7312db741219..bba875c4d068 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)