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Ryosuke Yasuoka e8c8e0d0d2 nfc: nci: Fix uninit-value in nci_rx_work

[ Upstream commit e4a87abf58 ]

syzbot reported the following uninit-value access issue [1]

nci_rx_work() parses received packet from ndev->rx_q. It should be
validated header size, payload size and total packet size before
processing the packet. If an invalid packet is detected, it should be
silently discarded.

Fixes: d24b03535e ("nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet")
Reported-and-tested-by: syzbot+d7b4dc6cd50410152534@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d7b4dc6cd50410152534 [1]
Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-06-12 11:03:50 +02:00

hci

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nci

nfc: nci: Fix uninit-value in nci_rx_work

2024-06-12 11:03:50 +02:00

af_nfc.c

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core.c

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digital_core.c

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