nfc: llcp: fix possible use of uninitialized variable in nfc_llcp_send_connect()

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[ Upstream commit 0d9b41daa5 ]

If sock->service_name is NULL, the local variable
service_name_tlv_length will not be assigned by nfc_llcp_build_tlv(),
later leading to using value frmo the stack.  Smatch warning:

  net/nfc/llcp_commands.c:442 nfc_llcp_send_connect() error: uninitialized symbol 'service_name_tlv_length'.

Fixes: de9e5aeb4f ("NFC: llcp: Fix usage of llcp_add_tlv()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Krzysztof Kozlowski 2023-05-13 13:52:04 +02:00 • committed by Greg Kroah-Hartman

parent 7d555fbb2f

commit 0b1a4ee53e

1 changed files with 2 additions and 1 deletions

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net/nfc/llcp_commands.c

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