I was looking at the code earlier today and I see a simple memory
corruption.
$ pwd
/tmp/dracut-ng/src/util
$ CC=clang-17 CXX=clang++-17 CFLAGS="-fsanitize=address" cmake .
-- The C compiler identification is Clang 17.0.6
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/clang-17 - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring done (0.3s)
-- Generating done (0.0s)
-- Build files have been written to: /tmp/dracut-ng/src/util
$ CC=clang-17 CXX=clang++-17 CFLAGS="-fsanitize=address" make
[ 50%] Building C object CMakeFiles/dracut-util.dir/util.c.o
[100%] Linking C executable dracut-util
[100%] Built target dracut-util
$ ln -s $PWD/dracut-util dracut-getargs
$ ln -s $PWD/dracut-util dracut-getarg
$ CMDLINE=' "' ./dracut-getarg ' '
AddressSanitizer:DEADLYSIGNAL
=================================================================
==163118==ERROR: AddressSanitizer: SEGV on unknown address 0x50210000001d (pc
0x599a6b7d4c07 bp 0x7ffe44ea9ef0 sp 0x7ffe44ea9da0 T0)
==163118==The signal is caused by a READ memory access.
#0 0x599a6b7d4c07 in next_arg util.c
#1 0x599a6b7d3e75 in getarg util.c
#2 0x599a6b7d3448 in main (/tmp/dracut-ng/src/util/dracut-util+0x108448)
(BuildId: ea28a61b3c6dd0a75c505cd1749f8711779bd819)
#3 0x72381be2a1c9 in __libc_start_call_main
csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#4 0x72381be2a28a in __libc_start_main csu/../csu/libc-start.c:360:3
#5 0x599a6b6f7304 in _start (/tmp/dracut-ng/src/util/dracut-util+0x2c304)
(BuildId: ea28a61b3c6dd0a75c505cd1749f8711779bd819)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV util.c in next_arg
==163118==ABORTING
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https://bugs.launchpad.net/bugs/2031304
Title:
[MIR] dracut
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