HID: intel_ish-hid: Add check for ishtp_dma_tx_map
stable inclusion from stable-v4.19.272 commit cc906a3a4432da143ab3d2e894f99ddeff500cd3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I7FCLX CVE: CVE-2023-3358 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=722c156c6eab40a6e7dda98dfa66724f9d5aeceb -------------------------------- [ Upstream commit b3d40c3e ] As the kcalloc may return NULL pointer, it should be better to check the ishtp_dma_tx_map before use in order to avoid NULL pointer dereference. Fixes: 3703f53b ("HID: intel_ish-hid: ISH Transport layer") Signed-off-by: NJiasheng Jiang <jiasheng@iscas.ac.cn> Acked-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz> Signed-off-by: NSasha Levin <sashal@kernel.org> Signed-off-by: NCai Xinchen <caixinchen1@huawei.com> Reviewed-by: GUO Zihua<guozihua@huawei.com> Reviewed-by: NGONG, Ruiqi <gongruiqi1@huawei.com> Reviewed-by: NWang Weiyang <wangweiyang2@huawei.com> Signed-off-by: NYongqiang Liu <liuyongqiang13@huawei.com>
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