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linux/drivers/nfc
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Fedor Pchelkin c494365432 nfc: fix memory leak of se_io context in nfc_genl_se_io 
[ Upstream commit 25ff6f8a5a ]

The callback context for sending/receiving APDUs to/from the selected
secure element is allocated inside nfc_genl_se_io and supposed to be
eventually freed in se_io_cb callback function. However, there are several
error paths where the bwi_timer is not charged to call se_io_cb later, and
the cb_context is leaked.

The patch proposes to free the cb_context explicitly on those error paths.

At the moment we can't simply check 'dev->ops->se_io()' return value as it
may be negative in both cases: when the timer was charged and was not.

Fixes: 5ce3f32b52 ("NFC: netlink: SE API implementation")
Reported-by: syzbot+df64c0a2e8d68e78a4fa@syzkaller.appspotmail.com
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 13:57:29 +01:00
..
fdp nfc: fdp: Fix potential memory leak in fdp_nci_send() 2022-11-10 18:15:27 +01:00
microread nfc: microread: remove unused header includes 2021-08-26 09:13:35 +01:00
nfcmrvl nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send() 2022-11-10 18:15:28 +01:00
nxp-nci nfc: nxp-nci: Fix potential memory leak in nxp_nci_send() 2022-11-10 18:15:27 +01:00
pn533 nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame() 2023-01-18 11:48:54 +01:00
pn544 nfc: pn544: remove unused header includes 2021-08-26 09:13:36 +01:00
s3fwrn5 nfc: s3fwrn5: Fix potential memory leak in s3fwrn5_nci_send() 2022-11-10 18:15:27 +01:00
st21nfca nfc: fix memory leak of se_io context in nfc_genl_se_io 2023-03-11 13:57:29 +01:00
st95hf nfc: st95hf: Make spi remove() callback return zero 2021-10-20 14:41:20 +01:00
st-nci nfc: fix memory leak of se_io context in nfc_genl_se_io 2023-03-11 13:57:29 +01:00
Kconfig
Makefile
mei_phy.c nfc: mei_phy: constify buffer passed to mei_nfc_send() 2021-07-29 12:28:02 +01:00
mei_phy.h nfc: constify nfc_phy_ops 2021-07-25 09:21:21 +01:00
nfcsim.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-07-31 09:14:46 -07:00
port100.c NFC: port100: fix use-after-free in port100_send_complete 2022-03-16 14:23:39 +01:00
trf7970a.c nfc: trf7970a: constify several pointers 2021-07-29 12:28:03 +01:00
virtual_ncidev.c nfc: virtual_ncidev: Fix memory leak in virtual_nci_send() 2022-11-03 23:59:16 +09:00