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exec: use flush_icache_user_range in read_code

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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>
This commit is contained in:
Christoph Hellwig
2020-06-07 21:42:43 -07:00
committed by Linus Torvalds
parent 48304f7994
commit bce2b68b89
1 changed files with 1 additions and 1 deletions
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fs/exec.c
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@@ -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); ssize_t res = vfs_read(file, (void __user *)addr, len, &pos);
if (res > 0) if (res > 0)
flush_icache_range(addr, addr + len); flush_icache_user_range(addr, addr + len);
return res; return res;
} }
EXPORT_SYMBOL(read_code); EXPORT_SYMBOL(read_code);