diff options
| author | jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-10-29 21:25:39 +0000 |
|---|---|---|
| committer | jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-10-29 21:25:39 +0000 |
| commit | 7438476abb398deacd0e0dd17a176ce27f7f9ae2 (patch) | |
| tree | 10f78575ea8f4a8290326881f6accd27633a31a1 /package | |
| parent | 7f14e127691864dc8e5ad615b14cf61421eefb7a (diff) | |
package/hostapd: fix crash in atheros driver (#8143)
hapd->driver->set_operstate may happen when the drv_priv data is not initialized yet,
this leads to a null pointer deref in the atheros driver. Protect the operstate call with a
check for hapd->drv_priv.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23715 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package')
| -rw-r--r-- | package/hostapd/patches/460-oper_state_fix.patch | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/package/hostapd/patches/460-oper_state_fix.patch b/package/hostapd/patches/460-oper_state_fix.patch index 5a685a23e..8ea0e1236 100644 --- a/package/hostapd/patches/460-oper_state_fix.patch +++ b/package/hostapd/patches/460-oper_state_fix.patch @@ -23,3 +23,25 @@ DORMANT state does not prevent normal operations after that. return 0; } +--- a/src/drivers/driver_wext.c ++++ b/src/drivers/driver_wext.c +@@ -2245,11 +2245,14 @@ int wpa_driver_wext_set_operstate(void * + { + struct wpa_driver_wext_data *drv = priv; + +- wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", +- __func__, drv->operstate, state, state ? "UP" : "DORMANT"); +- drv->operstate = state; +- return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1, +- state ? IF_OPER_UP : IF_OPER_DORMANT); ++ if (drv != NULL) ++ { ++ wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)", ++ __func__, drv->operstate, state, state ? "UP" : "DORMANT"); ++ drv->operstate = state; ++ return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1, ++ state ? IF_OPER_UP : IF_OPER_DORMANT); ++ } + } + + |