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authorXiaoming Ni <nixiaoming@huawei.com>2021-03-25 06:51:12 +0300
committerDavid S. Miller <davem@davemloft.net>2021-03-26 03:02:01 +0300
commit7574fcdbdcb335763b6b322f6928dc0fd5730451 (patch)
treeb54ea3bdfb3be277f8680fd137a66f2be6b0f81d /kernel/module_signature.c
parent8a4cd82d62b5ec7e5482333a72b58a4eea4979f0 (diff)
downloadlinux-7574fcdbdcb335763b6b322f6928dc0fd5730451.tar.xz
nfc: fix memory leak in llcp_sock_connect()
In llcp_sock_connect(), use kmemdup to allocate memory for "llcp_sock->service_name". The memory is not released in the sock_unlink label of the subsequent failure branch. As a result, memory leakage occurs. fix CVE-2020-25672 Fixes: d646960f7986 ("NFC: Initial LLCP support") Reported-by: "kiyin(尹亮)" <kiyin@tencent.com> Link: https://www.openwall.com/lists/oss-security/2020/11/01/1 Cc: <stable@vger.kernel.org> #v3.3 Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/module_signature.c')
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