Matt Johnston f962e8361a net: mctp-serial: Fix missing escapes on transmit ... 0x7d and 0x7e bytes are meant to be escaped in the data portion of frames, but this didn't occur since next_chunk_len() had an off-by-one error. That also resulted in the final byte of a payload being written as a separate tty write op. The chunk prior to an escaped byte would be one byte short, and the next call would never test the txpos+1 case, which is where the escaped byte was located. That meant it never hit the escaping case in mctp_serial_tx_work(). Example Input: 01 00 08 c8 7e 80 02 Previous incorrect chunks from next_chunk_len(): 01 00 08 c8 7e 80 02 With this fix: 01 00 08 c8 7e 80 02 Cc: stable@vger.kernel.org Fixes: a0c2ccd9b5 ("mctp: Add MCTP-over-serial transport binding") Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>		2024-09-01 18:14:01 +01:00
..
Kconfig	net: mctp-serial: Add kunit test for next_chunk_len()	2024-09-01 18:14:01 +01:00
Makefile	mctp i3c: MCTP I3C driver	2023-10-17 12:45:03 +02:00
mctp-i2c.c	net: mctp-i2c: invalidate flows immediately on TX errors	2024-07-12 13:37:31 +01:00
mctp-i3c.c	mctp i3c: MCTP I3C driver	2023-10-17 12:45:03 +02:00
mctp-serial.c	net: mctp-serial: Fix missing escapes on transmit	2024-09-01 18:14:01 +01:00