Release 4.18 lib/usercopy.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/uaccess.h>
/* out-of-line parts */
#ifndef INLINE_COPY_FROM_USER
unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)
{
unsigned long res = n;
might_fault();
if (likely(access_ok(VERIFY_READ, from, n))) {
kasan_check_write(to, n);
res = raw_copy_from_user(to, from, n);
}
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Al Viro | 88 | 100.00% | 2 | 100.00% |
Total | 88 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(_copy_from_user);
#endif
#ifndef INLINE_COPY_TO_USER
unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)
{
might_fault();
if (likely(access_ok(VERIFY_WRITE, to, n))) {
kasan_check_read(from, n);
n = raw_copy_to_user(to, from, n);
}
return n;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Al Viro | 59 | 98.33% | 2 | 66.67% |
Christophe Leroy | 1 | 1.67% | 1 | 33.33% |
Total | 60 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(_copy_to_user);
#endif
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Al Viro | 171 | 98.84% | 2 | 50.00% |
Greg Kroah-Hartman | 1 | 0.58% | 1 | 25.00% |
Christophe Leroy | 1 | 0.58% | 1 | 25.00% |
Total | 173 | 100.00% | 4 | 100.00% |
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