Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -march=x86-64 -mtune=generic -O2 -pipe -fno-plt
-DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/bin'
-DSTANDARD_UTILS_PATH='/usr/bin' -DSYS_BASHRC='/etc/bash.bashrc'
-DSYS_BASH_LOGOUT='/etc/bash.bash_logout'
-DNON_INTERACTIVE_LOGIN_SHELLS
uname output: Linux articuno 5.11.5-arch1-1 #1 SMP PREEMPT Tue, 09 Mar
2021 18:56:28 +0000 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.1
Patch Level: 4
Release Status: release
Description:
Two bytes unicode characters getting corrupted under certain
circumstances around every 5th attempt of running below command
Repeat-By:
1) create an UTF-8 file which contains 510 'A' characters, newline
('\n') and some two bytes unicode character (f.e. russian letter 'Я')
(file size should be equal to 513 bytes after that)
File can be created using following script in python 3:
#!/usr/bin/env python
with open('./a', 'w', encoding='UTF-8') as out:
out.write('A' * 510 + '\n' + 'Я')
2) create simple bash function which echoes second argument:
foo()
{
echo "$2"
}
3) run following command
foo $(cat ./a)
4) around every 5th attempt the letter will be corrupted (you will get
'd0 ?? af 0a' instead of 'd0 af 0a')
--
Кириллов Дмитрий Сергеевич
