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| author | Aditya Pakki | 2019-03-20 18:02:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-05-04 09:20:17 +0200 |
| commit | 5a5f1decd6fc90ac7bbe14704cc2de01b1cb7889 (patch) | |
| tree | 32efdfc7d36839a30ed943defae309877f92a5e3 /drivers/staging | |
| parent | staging: rtl8188eu: Fix potential NULL pointer dereference of kcalloc (diff) | |
| download | kernel-qcow2-linux-5a5f1decd6fc90ac7bbe14704cc2de01b1cb7889.tar.gz kernel-qcow2-linux-5a5f1decd6fc90ac7bbe14704cc2de01b1cb7889.tar.xz kernel-qcow2-linux-5a5f1decd6fc90ac7bbe14704cc2de01b1cb7889.zip | |
staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference
[ Upstream commit d70d70aec9632679dd00dcc1b1e8b2517e2c7da0 ]
skb allocated via dev_alloc_skb can fail and return a NULL pointer.
This patch avoids such a scenario and returns, consistent with other
invocations.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/rtlwifi/rtl8822be/fw.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c index a40396614814..c1ed52df05f0 100644 --- a/drivers/staging/rtlwifi/rtl8822be/fw.c +++ b/drivers/staging/rtlwifi/rtl8822be/fw.c @@ -741,6 +741,8 @@ void rtl8822be_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished) u1_rsvd_page_loc, 3); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; memcpy((u8 *)skb_put(skb, totalpacketlen), &reserved_page_packet, totalpacketlen); |