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| author | Beniamino Galvani <bgalvani@redhat.com> | 2015-08-06 14:26:05 +0200 |
|---|---|---|
| committer | Thomas Haller <thaller@redhat.com> | 2015-08-11 18:31:46 +0200 |
| commit | ab41c13b0611c6cc967b055d328637a143b5c59b (patch) | |
| tree | 5a9aafd65acfbc6de0f66b9e24cc235f9102bf66 /src/platform/wifi | |
| parent | bfb459f8edd1b5ff42768fc91cb8cc652ed6012d (diff) | |
| download | NetworkManager-ab41c13b0611c6cc967b055d328637a143b5c59b.tar.gz | |
core: avoid ioctls on non existent devices
Performing an ioctl on a non existent device may cause the automatic
load of a kernel module if the device name matches a module
alias. Check if the device actually exists before calling the ioctl.
Diffstat (limited to 'src/platform/wifi')
| -rw-r--r-- | src/platform/wifi/wifi-utils-wext.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/platform/wifi/wifi-utils-wext.c b/src/platform/wifi/wifi-utils-wext.c index 0d7488b3ed..96bcf53d26 100644 --- a/src/platform/wifi/wifi-utils-wext.c +++ b/src/platform/wifi/wifi-utils-wext.c @@ -33,6 +33,7 @@ #include "wifi-utils-private.h" #include "wifi-utils-wext.h" #include "nm-utils.h" +#include "nm-platform-utils.h" /* Hacks necessary to #include wireless.h; yay for WEXT */ #ifndef __user @@ -662,6 +663,9 @@ wifi_wext_is_wifi (const char *iface) struct iwreq iwr; gboolean is_wifi = FALSE; + if (!nmp_utils_device_exists (iface)) + return FALSE; + fd = socket (PF_INET, SOCK_DGRAM, 0); if (fd >= 0) { strncpy (iwr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ); |