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kmod: make usermodehelper path a const string

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This is in preparation for making it so that usermode helper programs
can't be changed, if desired, by userspace.  We will tackle the mess of
cleaning up the write-ability of argv and env later, that's going to
take more work, for much less gain...

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2017-01-16 17:50:02 +01:00
parent 5593edfbfa
commit 6d2c5d6c46
2 changed files with 6 additions and 5 deletions
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7
include/linux/kmod.h
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@@ -56,7 +56,7 @@ struct file;
struct subprocess_info {
struct work_struct work;
struct completion *complete;
char *path;
const char *path;
char **argv;
char **envp;
int wait;
@@ -67,10 +67,11 @@ struct subprocess_info {
};
extern int
call_usermodehelper(char *path, char **argv, char **envp, int wait);
call_usermodehelper(const char *path, char **argv, char **envp, int wait);
extern struct subprocess_info *
call_usermodehelper_setup(char *path, char **argv, char **envp, gfp_t gfp_mask,
call_usermodehelper_setup(const char *path, char **argv, char **envp,
gfp_t gfp_mask,
int (*init)(struct subprocess_info *info, struct cred *new),
void (*cleanup)(struct subprocess_info *), void *data);