From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jia-Ju Bai <baijiaju1990@gmail.com>,
Luca Coelho <luciano.coelho@intel.com>,
Kalle Valo <kvalo@codeaurora.org>,
Sasha Levin <sashal@kernel.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 09/35] iwlwifi: Fix double-free problems in iwl_req_fw_callback()
Date: Wed, 26 Jun 2019 20:38:57 -0400 [thread overview]
Message-ID: <20190627003925.21330-9-sashal@kernel.org> (raw)
In-Reply-To: <20190627003925.21330-1-sashal@kernel.org>
From: Jia-Ju Bai <baijiaju1990@gmail.com>
[ Upstream commit a8627176b0de7ba3f4524f641ddff4abf23ae4e4 ]
In the error handling code of iwl_req_fw_callback(), iwl_dealloc_ucode()
is called to free data. In iwl_drv_stop(), iwl_dealloc_ucode() is called
again, which can cause double-free problems.
To fix this bug, the call to iwl_dealloc_ucode() in
iwl_req_fw_callback() is deleted.
This bug is found by a runtime fuzzing tool named FIZZER written by us.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 99676d6c4713..6c10b8c4ddbe 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1509,7 +1509,6 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
goto free;
out_free_fw:
- iwl_dealloc_ucode(drv);
release_firmware(ucode_raw);
out_unbind:
complete(&drv->request_firmware_complete);
--
2.20.1
next prev parent reply other threads:[~2019-06-27 0:40 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 0:38 [PATCH AUTOSEL 4.14 01/35] Input: elantech - enable middle button support on 2 ThinkPads Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 02/35] samples, bpf: fix to change the buffer size for read() Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 03/35] bpf: sockmap, fix use after free from sleep in psock backlog workqueue Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 04/35] staging:iio:ad7150: fix threshold mode config bit Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 05/35] mac80211: mesh: fix RCU warning Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 06/35] mac80211: free peer keys before vif down in mesh Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 07/35] mwifiex: Fix possible buffer overflows at parsing bss descriptor Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 08/35] mwifiex: Abort at too short BSS descriptor element Sasha Levin
2019-06-27 0:38 ` Sasha Levin [this message]
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 10/35] bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro Sasha Levin
2019-06-27 0:38 ` [PATCH AUTOSEL 4.14 11/35] netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 12/35] netfilter: ipv6: nf_defrag: accept duplicate fragments again Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 13/35] dt-bindings: can: mcp251x: add mcp25625 support Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 14/35] can: mcp251x: add support for mcp25625 Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 15/35] can: m_can: implement errata "Needless activation of MRAF irq" Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 16/35] can: af_can: Fix error path of can_init() Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 17/35] ibmvnic: Refresh device multicast list after reset Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 18/35] ARM: dts: am335x phytec boards: Fix cd-gpios active level Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 19/35] Input: imx_keypad - make sure keyboard can always wake up system Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 20/35] KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 21/35] mlxsw: spectrum: Disallow prio-tagged packets when PVID is removed Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 22/35] ARM: davinci: da850-evm: call regulator_has_full_constraints() Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 23/35] ARM: davinci: da8xx: specify dma_coherent_mask for lcdc Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 24/35] mac80211: only warn once on chanctx_conf being NULL Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 25/35] qmi_wwan: add support for QMAP padding in the RX path Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 26/35] qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 27/35] qmi_wwan: extend permitted QMAP mux_id value range Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 28/35] md: fix for divide error in status_resync Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 29/35] bnx2x: Check if transceiver implements DDM before access Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 30/35] drm: return -EFAULT if copy_to_user() fails Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 31/35] ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 32/35] net: lio_core: fix potential sign-extension overflow on large shift Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 33/35] quota: fix a problem about transfer quota Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 34/35] net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge() Sasha Levin
2019-06-27 0:39 ` [PATCH AUTOSEL 4.14 35/35] net :sunrpc :clnt :Fix xps refcount imbalance on the error path Sasha Levin
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