diff options
| author | Andy Shevchenko <[email protected]> | 2020-12-03 17:32:05 +0200 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2021-01-31 14:08:56 +0100 |
| commit | 6ffc8e29934391e1569066ca1a1638d261839fa7 (patch) | |
| tree | b5b314dad5e2917c6fe5ebe2fd9ea3c998d3c3d7 | |
| parent | ff52577c1b5188a5f25bd7d7d41730bb5de4b688 (diff) | |
f_fastboot: Avoid use-after-free in the global pointer variable
In case of usb_add_function() failure the error path has an issue,
i.e the global pointer variable is assigned to garbage
Fix the above mentioned issue by assigning pointer to NULL.
Signed-off-by: Andy Shevchenko <[email protected]>
| -rw-r--r-- | drivers/usb/gadget/f_fastboot.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index d1d087e12b2..d0d865cf3d0 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -315,7 +315,7 @@ static int fastboot_add(struct usb_configuration *c) status = usb_add_function(c, &f_fb->usb_function); if (status) { free(f_fb); - fastboot_func = f_fb; + fastboot_func = NULL; } return status; |