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| author | Stefan Agner <stefan.agner@toradex.com> | 2016-09-16 13:17:18 -0700 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2016-09-29 13:58:03 -0700 |
| commit | cd89f007101ad44dc318b2aca826b5754c5ccfa9 (patch) | |
| tree | 75cddcca3c07f8c06e053398eeb618f3da458169 /arch/arm/kernel | |
| parent | 45de59e3f1511606433c294e9ec85c5b9d4f637f (diff) | |
| parent | 1d074db69c46d62ce82b331c2080e2fcb710bf4a (diff) | |
Merge tag 'v4.4.21' into toradex_vf_4.4-next
This is the 4.4.21 stable release
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/sys_oabi-compat.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c index 087acb569b63..5f221acd21ae 100644 --- a/arch/arm/kernel/sys_oabi-compat.c +++ b/arch/arm/kernel/sys_oabi-compat.c @@ -279,8 +279,12 @@ asmlinkage long sys_oabi_epoll_wait(int epfd, mm_segment_t fs; long ret, err, i; - if (maxevents <= 0 || maxevents > (INT_MAX/sizeof(struct epoll_event))) + if (maxevents <= 0 || + maxevents > (INT_MAX/sizeof(*kbuf)) || + maxevents > (INT_MAX/sizeof(*events))) return -EINVAL; + if (!access_ok(VERIFY_WRITE, events, sizeof(*events) * maxevents)) + return -EFAULT; kbuf = kmalloc(sizeof(*kbuf) * maxevents, GFP_KERNEL); if (!kbuf) return -ENOMEM; @@ -317,6 +321,8 @@ asmlinkage long sys_oabi_semtimedop(int semid, if (nsops < 1 || nsops > SEMOPM) return -EINVAL; + if (!access_ok(VERIFY_READ, tsops, sizeof(*tsops) * nsops)) + return -EFAULT; sops = kmalloc(sizeof(*sops) * nsops, GFP_KERNEL); if (!sops) return -ENOMEM; |