Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 13:11:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

selinux: conditional expression type validation was off-by-one

Browse Source 
expr_isvalid() in conditional.c was off-by-one and allowed
invalid expression type COND_LAST. However, it is this header file
that needs to be fixed. That way the if-statement's disjunction's
second component reads more naturally, "if expr type is greater than
the last allowed value" ( rather than using ">=" in conditional.c):

  if (expr->expr_type <= 0 || expr->expr_type > COND_LAST)

Signed-off-by: Vesa-Matti Kari <vmkari@cc.helsinki.fi>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Vesa-Matti Kari 2008-08-06 18:24:51 +03:00 committed by James Morris
parent 1544623536
commit 421fae06be
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
security/selinux/ss/conditional.h
View File

@ -28,7 +28,7 @@ struct cond_expr {
#define COND_XOR 5 /* bool ^ bool */
#define COND_EQ 6 /* bool == bool */
#define COND_NEQ 7 /* bool != bool */
#define COND_LAST 8
#define COND_LAST COND_NEQ
__u32 expr_type;
__u32 bool;
struct cond_expr *next;