Heap overflow error

rc.log (text/x-log), 2.96 KB, created by Yarda on 2022-03-29 18:33:27 UTC

rc default logging started at Tue Mar 29 19:42:27 2022

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==4894==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c000000538 at pc 0x7f3172c8239a bp 0x7ffe7b85b830 sp 0x7ffe7b85afe0
READ of size 121 at 0x60c000000538 thread T0
    #0 0x7f3172c82399  (/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/libasan.so.6+0x5c399)
    #1 0x7f3172c83ccd in vsnprintf (/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/libasan.so.6+0x5dccd)
    #2 0x7f3172c83efe in __snprintf_chk (/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/libasan.so.6+0x5defe)
    #3 0x7f3172bf8449 in snprintf /usr/include/bits/stdio2.h:71
    #4 0x7f3172bf8449 in rc_runlevel_exists ../openrc-0.44.10/src/librc/librc.c:487
    #5 0x55bdbe47c717 in main ../openrc-0.44.10/src/rc/rc.c:896
    #6 0x7f3172a1c2d9 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
    #7 0x7f3172a1c387 in __libc_start_main_impl ../csu/libc-start.c:409
    #8 0x55bdbe47e890 in _start (/sbin/openrc+0xc890)

0x60c000000538 is located 0 bytes to the right of 120-byte region [0x60c0000004c0,0x60c000000538)
allocated by thread T0 here:
    #0 0x7f3172cd5d77 in __interceptor_malloc (/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/libasan.so.6+0xafd77)
    #1 0x7f3172a67bae in __GI___getdelim /var/tmp/portage/sys-libs/glibc-2.34-r10/work/glibc-2.34/libio/iogetdelim.c:62
    #2 0xfffffffffffffff7  (<unknown module>)

SUMMARY: AddressSanitizer: heap-buffer-overflow (/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/libasan.so.6+0x5c399) 
Shadow bytes around the buggy address:
  0x0c187fff8050: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c187fff8060: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
  0x0c187fff8070: 00 00 00 00 00 00 00 03 fa fa fa fa fa fa fa fa
  0x0c187fff8080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa
  0x0c187fff8090: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
=>0x0c187fff80a0: 00 00 00 00 00 00 00[fa]fa fa fa fa fa fa fa fa
  0x0c187fff80b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c187fff80c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c187fff80d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c187fff80e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c187fff80f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==4894==ABORTING

rc default logging stopped at Tue Mar 29 19:42:27 2022