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author | David S. Miller <davem@davemloft.net> | 2018-02-19 18:46:11 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2018-02-19 18:46:11 -0500 |
commit | f5c0c6f4299f870f074235fbf552ecf957fc249c (patch) | |
tree | 6b46b9c0b271185b6f98fab350c3891042e729b1 /net/nfc/llcp_commands.c | |
parent | 26736a08ee0fb89a4f09bfb2c9f0805028ff63aa (diff) | |
parent | 79c0ef3e85c015b0921a8fd5dd539d1480e9cd6c (diff) | |
download | linux-f5c0c6f4299f870f074235fbf552ecf957fc249c.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/nfc/llcp_commands.c')
-rw-r--r-- | net/nfc/llcp_commands.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c index 367d8c027101..2ceefa183cee 100644 --- a/net/nfc/llcp_commands.c +++ b/net/nfc/llcp_commands.c @@ -149,6 +149,10 @@ struct nfc_llcp_sdp_tlv *nfc_llcp_build_sdreq_tlv(u8 tid, char *uri, pr_debug("uri: %s, len: %zu\n", uri, uri_len); + /* sdreq->tlv_len is u8, takes uri_len, + 3 for header, + 1 for NULL */ + if (WARN_ON_ONCE(uri_len > U8_MAX - 4)) + return NULL; + sdreq = kzalloc(sizeof(struct nfc_llcp_sdp_tlv), GFP_KERNEL); if (sdreq == NULL) return NULL; |