From: Christoph Hellwig <hch@xxxxxx> Subject: exec: use flush_icache_user_range in read_code read_code operates on user addresses. Link: http://lkml.kernel.org/r/20200515143646.3857579-27-hch@xxxxxx Signed-off-by: Christoph Hellwig <hch@xxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/exec.c~exec-use-flush_icache_user_range-in-read_code +++ a/fs/exec.c @@ -1059,7 +1059,7 @@ ssize_t read_code(struct file *file, uns { 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); _
