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43183e5843
Reported by 권석근 <kwonsksj@gmail.com>: I found a bug at "pty.c" during ssh server implementation. When I turn on CONFIG_SERIAL_TERMIOS and OPOST|ONLCR on pty device for nsh console's stdin/stdout (ssh shell service), I've got system crash. Bugs at line 687 of pty.c, pty_write() ntotal++; when converting '\n' to '\r\n', pty_write() will return more than requested (+1, for example) length. and this will break caller lib_fflush(), line 150 of lib_libfflush.c. When she get (libfflush()) bytes_nwritten which is greater than nbuffer, nbuffer goes to negative at line 150 and eventually destroys *stream->fs_bufpos at line 163 of lib_libflush.c Removing ntotal++; line 687 of pty.c will fix this bug. BTW, nsh using ptm/pty as a ssh shell service works great with libssh + mbedtls. |
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| .. | ||
| Kconfig | ||
| Kconfig-16550 | ||
| Kconfig-lpuart | ||
| Kconfig-sci | ||
| Kconfig-uart | ||
| Kconfig-usart | ||
| Make.defs | ||
| ptmx.c | ||
| pty.c | ||
| pty.h | ||
| serial.c | ||
| serial_dma.c | ||
| serial_io.c | ||
| tcdrain.c | ||
| uart_16550.c | ||
| uart_rpmsg.c | ||