pty: make ptmx file ops read-only after init · d2ec3f77de - Gogs: Go Git Service GfA electronic

pty: make ptmx file ops read-only after init

The ptmx_fops structure is only changed during init, so mark it as such.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Kees Cook 9 years ago

parent

a727b025f4

commit

d2ec3f77de

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
drivers/tty/pty.c
							 
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				@@ -800,7 +800,7 @@ out_free_file:
			
				 	return retval;
			
				 }
			
				-static struct file_operations ptmx_fops;
			
				+static struct file_operations ptmx_fops __ro_after_init;
			
				 static void __init unix98_pty_init(void)
			
				 {