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linux/drivers/nfc
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Wei Yongjun e553265ea5 NFC: st21nfca: Fix memory leak in device probe and remove 
[ Upstream commit 1b9dadba50 ]

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
  comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
    [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
    [<000000005fea522c>] __alloc_skb+0x124/0x380
    [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

Fixes: 68957303f4 ("NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-05 12:40:31 +01:00
..
fdp treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
microread treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
nfcmrvl nfc: Fix Kconfig indentation 2019-11-20 12:30:40 -08:00
nxp-nci treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
pn533 nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails 2021-11-18 14:04:27 +01:00
pn544 treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
s3fwrn5 nfc: s3fwrn5: Release the nfc firmware 2020-12-30 11:53:53 +01:00
st-nci nfc: st-nci: Remove unnecessary cast 2020-08-20 16:17:45 -07:00
st21nfca NFC: st21nfca: Fix memory leak in device probe and remove 2022-01-05 12:40:31 +01:00
st95hf NFC: st95hf: Fix memleak in st95hf_in_send_cmd 2020-08-24 17:34:25 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile
mei_phy.c nfc/mei: convert to SPDX license tags 2019-03-28 02:07:54 +09:00
mei_phy.h
nfcsim.c nfc: nfcsim: fix use after free during module unload 2021-08-04 12:46:41 +02:00
port100.c nfc: port100: fix using -ERRNO as command type mask 2021-11-02 19:48:19 +01:00
trf7970a.c nfc: remove unneeded break 2020-10-20 10:36:41 -07:00