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2922585b93
To use this, an architecture simply needs to: 1) Provide a user_addr_max() implementation via asm/uaccess.h 2) Add "select GENERIC_STRNCPY_FROM_USER" to their arch Kcnfig 3) Remove the existing strncpy_from_user() implementation and symbol exports their architecture had. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: David Howells <dhowells@redhat.com>
10 lines
196 B
C
10 lines
196 B
C
#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/bug.h>
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void copy_from_user_overflow(void)
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{
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WARN(1, "Buffer overflow detected!\n");
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}
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EXPORT_SYMBOL(copy_from_user_overflow);
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