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| author | Colin Ian King <colin.king@canonical.com> | 2018-10-03 10:59:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-09 16:02:29 +0200 |
| commit | bf7f547ecdd707e7b4fcbc467b4f9ddb29915391 (patch) | |
| tree | c21940ba483db09d750220cbf08a5a8bec514566 /drivers/usb/core/hub.c | |
| parent | 6503016ea5d3945f9af1eeac23ba99f408f3af1e (diff) | |
| download | linux-bf7f547ecdd707e7b4fcbc467b4f9ddb29915391.tar.bz2 | |
usb: core: fix memory leak on port_dev_path allocation
Currently the allocation of port_dev_path from the call to
kobject_get_path is not being kfree'd, causing a memory leak. Fix
this by kfree'ing this at the end of the function. Add an extra
error exit path to fix one of the early leaks when envp[0] fails
to be allocated.
Detected by CoverityScan, CID#1473771 ("Resource Leak")
Fixes: 201af55da8a3 ("usb: core: added uevent for over-current")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index bf76a3dd4359..c6077d582d29 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5170,7 +5170,7 @@ static void port_over_current_notify(struct usb_port *port_dev) envp[0] = kasprintf(GFP_KERNEL, "OVER_CURRENT_PORT=%s", port_dev_path); if (!envp[0]) - return; + goto exit_path; envp[1] = kasprintf(GFP_KERNEL, "OVER_CURRENT_COUNT=%u", port_dev->over_current_count); @@ -5182,6 +5182,8 @@ static void port_over_current_notify(struct usb_port *port_dev) kfree(envp[1]); exit: kfree(envp[0]); +exit_path: + kfree(port_dev_path); } static void port_event(struct usb_hub *hub, int port1) |