lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Fix integer overflow in sysdeps/unix/sysv/linux/bits/sched.h

Browse Source 
[BZ #15448]
	* sysdeps/unix/sysv/linux/bits/sched.h (__CPU_SET_S)
	(__CPU_CLR_S, __CPU_ISSET_S): Avoid integer overflow.
This commit is contained in:
Andreas Jaeger
2013-05-10 20:28:40 +02:00
parent 51df539d98
commit 8a67a4b343
3 changed files with 11 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
sysdeps/unix/sysv/linux/bits/sched.h
View File

@ -144,21 +144,21 @@ typedef struct
# define __CPU_SET_S(cpu, setsize, cpusetp) \
(__extension__ \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
__cpu / 8 < (setsize) \
? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
|= __CPUMASK (__cpu)) \
: 0; }))
# define __CPU_CLR_S(cpu, setsize, cpusetp) \
(__extension__ \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
__cpu / 8 < (setsize) \
? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
&= ~__CPUMASK (__cpu)) \
: 0; }))
# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
(__extension__ \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
__cpu / 8 < (setsize) \
? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
& __CPUMASK (__cpu))) != 0 \
: 0; }))