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| author | Thierry Escande <thierry.escande@collabora.com> | 2016-06-16 20:24:41 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2016-07-06 10:03:08 +0200 |
| commit | b77693447db987e77a39afaa8774e8702cb110d5 (patch) | |
| tree | c16ef17f147b8a7b45cd98686f9ce5b8e4237d69 /net/nfc | |
| parent | 8f49bec6c36c73f0c212e07229b19fb4bba85788 (diff) | |
| download | linux-0-day-b77693447db987e77a39afaa8774e8702cb110d5.tar.gz linux-0-day-b77693447db987e77a39afaa8774e8702cb110d5.tar.xz | |
NFC: digital: Fix a memory leak in NFC-F listening mode
When configured as a target listening for a SENSF_REQ poll command, a
nfcid2 array was allocated for no reason leading to a memory leak. The
nfcid2 is sent by the target in the SENSF_RES reply.
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
| -rw-r--r-- | net/nfc/digital_technology.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c index fb58ed2dd41d1..d9080dec5d278 100644 --- a/net/nfc/digital_technology.c +++ b/net/nfc/digital_technology.c @@ -1257,21 +1257,12 @@ static int digital_tg_config_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech) int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech) { int rc; - u8 *nfcid2; rc = digital_tg_config_nfcf(ddev, rf_tech); if (rc) return rc; - nfcid2 = kzalloc(NFC_NFCID2_MAXSIZE, GFP_KERNEL); - if (!nfcid2) - return -ENOMEM; - - nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1; - nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2; - get_random_bytes(nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2); - - return digital_tg_listen(ddev, 300, digital_tg_recv_sensf_req, nfcid2); + return digital_tg_listen(ddev, 300, digital_tg_recv_sensf_req, NULL); } void digital_tg_recv_md_req(struct nfc_digital_dev *ddev, void *arg, |