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由 Johan Korsnes 提交于
commit 5ebdffd25098898aff1249ae2f7dbfddd76d8f8f upstream. In case a report is greater than HID_MAX_BUFFER_SIZE, it is truncated, but the report-number byte is not correctly handled. This results in a off-by-one in the following memset, causing a kernel Oops and ensuing system crash. Note: With commit 8ec321e96e05 ("HID: Fix slab-out-of-bounds read in hid_field_extract") I no longer hit the kernel Oops as we instead fail "controlled" at probe if there is a report too long in the HID report-descriptor. hid_report_raw_event() is an exported symbol, so presumabely we cannot always rely on this being the case. Fixes: 966922f2 ("HID: fix a crash in hid_report_raw_event() function.") Signed-off-by: NJohan Korsnes <jkorsnes@cisco.com> Cc: Armando Visconti <armando.visconti@st.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: NJiri Kosina <jkosina@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>6b51c296