From e55f589191162eb40f44696c77e569049313d381 Mon Sep 17 00:00:00 2001 From: Wang Yufen Date: Tue, 11 Nov 2014 15:59:11 +0800 Subject: add argument check in mknod mknod() in glibc/eglibc will check the argument, like this, ... if (k_dev != dev) { __set_errno (EINVAL); return -1; } ... So add argument check in uclibc's mknod() too. Signed-off-by: Wang Yufen Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/common/mknod.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libc/sysdeps/linux/common/mknod.c b/libc/sysdeps/linux/common/mknod.c index 416cab6d0..e0c54e6e3 100644 --- a/libc/sysdeps/linux/common/mknod.c +++ b/libc/sysdeps/linux/common/mknod.c @@ -24,6 +24,10 @@ int mknod(const char *path, mode_t mode, dev_t dev) /* We must convert the value to dev_t type used by the kernel. */ k_dev = (dev) & ((1ULL << 32) - 1); + if (k_dev != dev) { + __set_errno(EINVAL); + return -1; + } return INLINE_SYSCALL(mknod, 3, path, mode, (unsigned int)k_dev); } #endif -- cgit v1.2.3