[PATCH 28/31] exec: use flush_icache_user_range in read_code
From: Christoph Hellwig <hch@lst.de>
Date: 2020-05-10 07:57:21
Also in:
linux-alpha, linux-arch, linux-fsdevel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
Subsystem:
exec & binfmt api, elf, filesystems (vfs and infrastructure), the rest · Maintainers:
Kees Cook, Alexander Viro, Christian Brauner, Linus Torvalds
read_code operates on user addresses. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/exec.c b/fs/exec.c
index a4f766f296f8f..c541867316a63 100644
--- a/fs/exec.c
+++ b/fs/exec.c@@ -1033,7 +1033,7 @@ 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);
--
2.26.2
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