Commit bce2b68b authored Jun 07, 2020 by Christoph Hellwig Committed by Linus Torvalds Jun 08, 2020

exec: use flush_icache_user_range in read_code



read_code operates on user addresses.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Link: http://lkml.kernel.org/r/20200515143646.3857579-27-hch@lst.de


Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 48304f79

fs/exec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1059,7 +1059,7 @@ ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len)
		{
		ssize_t res = vfs_read(file, (void __user *)addr, len, &pos);
		if (res > 0)
		flush_icache_range(addr, addr + len);
		flush_icache_user_range(addr, addr + len);
		return res;
		}
		EXPORT_SYMBOL(read_code);

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