Pengpeng Hou 30fe3f5f64 NFC: pn533: bound the UART receive buffer ...

pn532_receive_buf() appends every incoming byte to dev->recv_skb and
only resets the buffer after pn532_uart_rx_is_frame() recognizes a
complete frame. A continuous stream of bytes without a valid PN532 frame
header therefore keeps growing the skb until skb_put_u8() hits the tail
limit.

Drop the accumulated partial frame once the fixed receive buffer is full
so malformed UART traffic cannot grow the skb past
PN532_UART_SKB_BUFF_LEN.

Fixes: c656aa4c27 ("nfc: pn533: add UART phy driver")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260326142033.82297-1-pengpeng@iscas.ac.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

2026-03-31 11:04:30 +02:00

..

i2c.c

nfc: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-06-20 19:28:31 -07:00

Kconfig

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-14 01:57:21 +09:00

Makefile

nfc: pn533: add UART phy driver

2019-10-29 21:05:26 -07:00

pn533.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

pn533.h

nfc: pn533: Constify pn533_phy_ops

2021-10-07 13:35:10 +01:00

uart.c

NFC: pn533: bound the UART receive buffer

2026-03-31 11:04:30 +02:00

usb.c

nfc: pn533: properly drop the usb interface reference on disconnect

2026-02-25 18:51:37 -08:00