(Just making sure this went through.) Bug: Bash is not memory safe.

bug-bash
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
(Just making sure this went through.) Bug: Bash is not memory safe.

From:	Joshua Brown
Subject:	(Just making sure this went through.) Bug: Bash is not memory safe.
Date:	Thu, 2 May 2024 00:24:28 +0100
$ bash --version | head -n1
GNU bash, version 5.2.15(1)-release (x86_64-pc-linux-gnu)

$ valgrind --leak-check=full \
         --track-origins=yes \
         --verbose \
         --log-file=valgrind-out-bash.txt \
         /bin/bash



==2762== Memcheck, a memory error detector
==2762== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==2762== Using Valgrind-3.19.0-8d3c8034b8-20220411 and LibVEX; rerun
with -h for copyright info ==2762== Command: /bin/bash
==2762== Parent PID: 2251
==2762== 
--2762-- 
--2762-- Valgrind options:
--2762--    --leak-check=full
--2762--    --track-origins=yes
--2762--    --verbose
--2762--    --log-file=valgrind-out-bash.txt
--2762-- Contents of /proc/version:
--2762--   Linux version 6.1.0-20-amd64
(debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU
ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian
6.1.85-1 (2024-04-11) --2762-- --2762-- Arch and hwcaps: AMD64,
LittleEndian,
amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand-rdseed
--2762-- Page sizes: currently 4096, max supported 4096 --2762--
Valgrind library directory: /usr/libexec/valgrind --2762-- Reading syms
from /bin/bash --2762--    object doesn't have a symbol table --2762--
Reading syms from /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 --2762--
Considering
/usr/lib/debug/.build-id/80/8ccde0c755608358b0915a6615c19401fe6bf6.debug
.. --2762--   .. build-id is valid --2762-- Reading syms from
/usr/libexec/valgrind/memcheck-amd64-linux --2762--   Considering
/usr/lib/debug/.build-id/82/26c2aa6b808ebd5a6fafb694a7fb3287f33590.debug
.. --2762--   .. build-id is valid --2762--    object doesn't have a
dynamic symbol table --2762-- Scheduler: using generic scheduler lock
implementation. --2762-- Reading suppressions file:
/usr/libexec/valgrind/default.supp ==2762== embedded gdbserver: reading
from /tmp/vgdb-pipe-from-vgdb-to-2762-by-user-on-??? ==2762== embedded
gdbserver: writing to   /tmp/vgdb-pipe-to-vgdb-from-2762-by-user-on-???
==2762== embedded gdbserver: shared mem
/tmp/vgdb-pipe-shared-mem-vgdb-2762-by-user-on-??? ==2762== ==2762== TO
CONTROL THIS PROCESS USING vgdb (which you probably ==2762== don't want
to do, unless you know exactly what you're doing, ==2762== or are doing
some strange experiment): ==2762==   /usr/bin/vgdb --pid=2762
...command... ==2762== ==2762== TO DEBUG THIS PROCESS USING GDB: start
GDB like this ==2762==   /path/to/gdb /bin/bash ==2762== and then give
GDB the following command ==2762==   target remote | /usr/bin/vgdb
--pid=2762 ==2762== --pid is optional if only one valgrind process is
running ==2762== 
--2762-- REDIR: 0x40238e0 (ld-linux-x86-64.so.2:strlen) redirected to
0x580bb0e2 (vgPlain_amd64_linux_REDIR_FOR_strlen) --2762-- REDIR:
0x40220c0 (ld-linux-x86-64.so.2:index) redirected to 0x580bb0fc
(vgPlain_amd64_linux_REDIR_FOR_index) --2762-- Reading syms from
/usr/libexec/valgrind/vgpreload_core-amd64-linux.so --2762--
Considering
/usr/lib/debug/.build-id/ad/f1388be4d8781737b0c83fe111a5a9c6e930aa.debug
.. --2762--   .. build-id is valid --2762-- Reading syms from
/usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so --2762--
Considering
/usr/lib/debug/.build-id/d8/ec66cffcb23a75c3f15940674d6028709121f8.debug
.. --2762--   .. build-id is valid ==2762== WARNING: new redirection
conflicts with existing -- ignoring it --2762--     old: 0x040238e0
(strlen              ) R-> (0000.0) 0x580bb0e2
vgPlain_amd64_linux_REDIR_FOR_strlen --2762--     new: 0x040238e0
(strlen              ) R-> (2007.0) 0x048468a0 strlen --2762-- REDIR:
0x40222e0 (ld-linux-x86-64.so.2:strcmp) redirected to 0x4847780
(strcmp) --2762-- REDIR: 0x4021550 (ld-linux-x86-64.so.2:mempcpy)
redirected to 0x484b1a0 (mempcpy) --2762-- Reading syms from
/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 --2762--    object doesn't
have a symbol table --2762-- Reading syms from
/lib/x86_64-linux-gnu/libtinfo.so.6.4 --2762--    object doesn't have a
symbol table --2762-- Reading syms from /lib/x86_64-linux-gnu/libc.so.6
--2762--   Considering
/usr/lib/debug/.build-id/ee/3145ecaaff87a133daea77fbc3eecd458fa0d1.debug
.. --2762--   .. build-id is valid ==2762== WARNING: new redirection
conflicts with existing -- ignoring it --2762--     old: 0x0493b540
(memalign            ) R-> (1011.0) 0x04845bc0 memalign --2762--
new: 0x0493b540 (memalign            ) R-> (1017.0) 0x04845b90
aligned_alloc ==2762== WARNING: new redirection conflicts with existing
-- ignoring it --2762--     old: 0x0493b540 (memalign            ) R->
(1011.0) 0x04845bc0 memalign --2762--     new: 0x0493b540 (memalign
       ) R-> (1017.0) 0x04845b60 aligned_alloc --2762-- Reading syms
from /lib/x86_64-linux-gnu/libdl.so.2 --2762--   Considering
/usr/lib/debug/.build-id/53/eaa845e9ca621f159b0622daae7387cdea1e97.debug
.. --2762--   .. build-id is valid --2762-- Reading syms from
/lib/x86_64-linux-gnu/libpthread.so.0 --2762--   Considering
/usr/lib/debug/.build-id/26/820458adaf5d95718fb502d170fe374ae3ee70.debug
.. --2762--   .. build-id is valid --2762-- REDIR: 0x4941490
(libc.so.6:strnlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4941520 (libc.so.6:strpbrk) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493f640 (libc.so.6:strcmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4954420
(libc.so.6:wcsnlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x493e780 (libc.so.6:memset) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4952d60 (libc.so.6:wcslen)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493ddb0
(libc.so.6:memcpy@@GLIBC_2.14) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4952b90 (libc.so.6:wcschr)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493f530
(libc.so.6:index) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4941550 (libc.so.6:rindex) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4952c20 (libc.so.6:wcscmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493e9c0
(libc.so.6:stpncpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4953170 (libc.so.6:wmemchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4941340 (libc.so.6:strncmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493ea30
(libc.so.6:strcasecmp) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x49408a0 (libc.so.6:strcspn) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4952cb0 (libc.so.6:wcscpy)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493f4b0
(libc.so.6:strcat) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4941230 (libc.so.6:strncasecmp_l) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493dcc0
(libc.so.6:bcmp) redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762--
REDIR: 0x493e6f0 (libc.so.6:memrchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493f5b0 (libc.so.6:strchrnul)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4940820
(libc.so.6:strcpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x493ead0 (libc.so.6:strcasecmp_l) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4941100
(libc.so.6:strlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x49413e0 (libc.so.6:strncpy) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493e940 (libc.so.6:stpcpy)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493e4d0
(libc.so.6:memmove) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
==2762== Preferring higher priority redirection: --2762--     old:
0x049f4780 (__memcpy_avx_unalign) R-> (2018.0) 0x04848a60
__memcpy_avx_unaligned_erms --2762--     new: 0x049f4780
(__memcpy_avx_unalign) R-> (2018.1) 0x0484a2b0 memmove --2762-- REDIR:
0x493dc40 (libc.so.6:memchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x4941710 (libc.so.6:strspn)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493e5e0
(libc.so.6:mempcpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4941190 (libc.so.6:strncasecmp) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2762-- REDIR: 0x493e880
(libc.so.6:rawmemchr) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x49412d0 (libc.so.6:strncat) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x49b7fc0
(libc.so.6:__memcpy_chk) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2762-- REDIR: 0x4941eb0 (libc.so.6:strstr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x49b80d0
(libc.so.6:__memmove_chk) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
==2762== WARNING: new redirection conflicts with existing -- ignoring
it --2762--     old: 0x049f4740 (__memcpy_chk_avx_una) R-> (2030.0)
0x0484b290 __memcpy_chk --2762--     new: 0x049f4740
(__memcpy_chk_avx_una) R-> (2024.0) 0x0484ac30 __memmove_chk --2762--
REDIR: 0x4952e30 (libc.so.6:wcsncmp) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2762-- REDIR: 0x49fa850
(libc.so.6:__strrchr_avx2) redirected to 0x48462e0 (rindex) --2762--
REDIR: 0x49f7610 (libc.so.6:__strcmp_avx2) redirected to 0x4847680
(strcmp) --2762-- REDIR: 0x49f7f00 (libc.so.6:__strlen_avx2) redirected
to 0x4846780 (strlen) --2762-- REDIR: 0x49f95d0
(libc.so.6:__strncmp_avx2) redirected to 0x4846ed0 (strncmp) --2762--
REDIR: 0x49f71e0 (libc.so.6:__strchr_avx2) redirected to 0x4846460
(index) --2762-- REDIR: 0x49f3d80 (libc.so.6:__memchr_avx2) redirected
to 0x4847800 (memchr) --2762-- REDIR: 0x49f7420
(libc.so.6:__strchrnul_avx2) redirected to 0x484aca0 (strchrnul)
--2762-- REDIR: 0x493a860 (libc.so.6:malloc) redirected to 0x4840740
(malloc) --2762-- REDIR: 0x49f4730
(libc.so.6:__mempcpy_avx_unaligned_erms) redirected to 0x484adb0
(mempcpy) --2762-- REDIR: 0x49f4780
(libc.so.6:__memcpy_avx_unaligned_erms) redirected to 0x484a2b0
(memmove) --2762-- REDIR: 0x493ae20 (libc.so.6:free) redirected to
0x4843110 (free) --2762-- REDIR: 0x49f7b70 (libc.so.6:__strcpy_avx2)
redirected to 0x48468d0 (strcpy) --2762-- REDIR: 0x493b610
(libc.so.6:calloc) redirected to 0x4845540 (calloc) --2762-- REDIR:
0x49f8080 (libc.so.6:__strncasecmp_avx2) redirected to 0x4847110
(strncasecmp) --2762-- REDIR: 0x49f5180
(libc.so.6:__memset_avx2_unaligned_erms) redirected to 0x484a1c0
(memset) --2762-- REDIR: 0x49b84b0 (libc.so.6:__strcpy_chk) redirected
to 0x484ad10 (__strcpy_chk) --2762-- REDIR: 0x49f9c20
(libc.so.6:__strncpy_avx2) redirected to 0x4846a50 (strncpy) --2762--
REDIR: 0x49fa580 (libc.so.6:__strnlen_avx2) redirected to 0x4846720
(strnlen) --2762-- REDIR: 0x49f4740
(libc.so.6:__memcpy_chk_avx_unaligned_erms) redirected to 0x484b290
(__memcpy_chk) --2762-- REDIR: 0x493b060 (libc.so.6:realloc) redirected
to 0x48457b0 (realloc) --2762-- REDIR: 0x4a16d10
(libc.so.6:__strpbrk_sse42) redirected to 0x484b520 (strpbrk) --2762--
REDIR: 0x49f5420 (libc.so.6:__stpcpy_avx2) redirected to 0x4849b60
(stpcpy) --2762-- REDIR: 0x49fb260 (libc.so.6:__wcslen_avx2) redirected
to 0x484b7c0 (wcslen) --2762-- REDIR: 0x49fc0a0
(libc.so.6:__wmemchr_avx2) redirected to 0x484ba00 (wmemchr) --2762--
REDIR: 0x49fab00 (libc.so.6:__wcschr_avx2) redirected to 0x484b9b0
(wcschr) --2762-- REDIR: 0x49fba80 (libc.so.6:__wcsnlen_avx2)
redirected to 0x484b7f0 (wcsnlen) --2762-- REDIR: 0x49f6160
(libc.so.6:__strcasecmp_avx2) redirected to 0x4847050 (strcasecmp)
--2762-- REDIR: 0x49f4020 (libc.so.6:__memcmp_avx2_movbe) redirected to
0x4849aa0 (bcmp) ==2762== ==2762== HEAP SUMMARY: ==2762==     in use at
exit: 923,884 bytes in 28,793 blocks ==2762==   total heap usage:
84,434 allocs, 55,641 frees, 2,761,955 bytes allocated ==2762==
==2762== Searching for pointers to 28,793 not-freed blocks ==2762==
Checked 885,216 bytes ==2762== ==2762== 24 bytes in 1 blocks are
definitely lost in loss record 2,594 of 8,420 ==2762==    at 0x48407B4:
malloc (vg_replace_malloc.c:381) ==2762==    by 0x1A2C8D: xmalloc (in
/bin/bash) ==2762==    by 0x147CB0: tilde_initialize (in /bin/bash)
==2762==    by 0x13A194: ??? (in /bin/bash) ==2762==    by 0x13882C:
main (in /bin/bash) ==2762== ==2762== LEAK SUMMARY: ==2762==
definitely lost: 24 bytes in 1 blocks ==2762==    indirectly lost: 0
bytes in 0 blocks ==2762==      possibly lost: 0 bytes in 0 blocks
==2762==    still reachable: 923,860 bytes in 28,792 blocks ==2762==
     suppressed: 0 bytes in 0 blocks ==2762== Reachable blocks (those
to which a pointer was found) are not shown. ==2762== To see them,
rerun with: --leak-check=full --show-leak-kinds=all ==2762== ==2762==
ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)





$ # BEFORE YOU SAY THIS IS 'JUST HOW VALGRIND WORKS' ... TRY THE SAME
WITH /bin/echo ...





$ valgrind --leak-check=full \
         --track-origins=yes \
         --verbose \
         --log-file=valgrind-out-echo.txt \
         /bin/echo



==2799== Memcheck, a memory error detector
==2799== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==2799== Using Valgrind-3.19.0-8d3c8034b8-20220411 and LibVEX; rerun
with -h for copyright info ==2799== Command: /bin/echo
==2799== Parent PID: 2236
==2799== 
--2799-- 
--2799-- Valgrind options:
--2799--    --leak-check=full
--2799--    --track-origins=yes
--2799--    --verbose
--2799--    --log-file=valgrind-out-echo.txt
--2799-- Contents of /proc/version:
--2799--   Linux version 6.1.0-20-amd64
(debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU
ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian
6.1.85-1 (2024-04-11) --2799-- --2799-- Arch and hwcaps: AMD64,
LittleEndian,
amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand-rdseed
--2799-- Page sizes: currently 4096, max supported 4096 --2799--
Valgrind library directory: /usr/libexec/valgrind --2799-- Reading syms
from /bin/echo --2799--    object doesn't have a symbol table --2799--
Reading syms from /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 --2799--
Considering
/usr/lib/debug/.build-id/80/8ccde0c755608358b0915a6615c19401fe6bf6.debug
.. --2799--   .. build-id is valid --2799-- Reading syms from
/usr/libexec/valgrind/memcheck-amd64-linux --2799--   Considering
/usr/lib/debug/.build-id/82/26c2aa6b808ebd5a6fafb694a7fb3287f33590.debug
.. --2799--   .. build-id is valid --2799--    object doesn't have a
dynamic symbol table --2799-- Scheduler: using generic scheduler lock
implementation. --2799-- Reading suppressions file:
/usr/libexec/valgrind/default.supp ==2799== embedded gdbserver: reading
from /tmp/vgdb-pipe-from-vgdb-to-2799-by-user-on-??? ==2799== embedded
gdbserver: writing to   /tmp/vgdb-pipe-to-vgdb-from-2799-by-user-on-???
==2799== embedded gdbserver: shared mem
/tmp/vgdb-pipe-shared-mem-vgdb-2799-by-user-on-??? ==2799== ==2799== TO
CONTROL THIS PROCESS USING vgdb (which you probably ==2799== don't want
to do, unless you know exactly what you're doing, ==2799== or are doing
some strange experiment): ==2799==   /usr/bin/vgdb --pid=2799
...command... ==2799== ==2799== TO DEBUG THIS PROCESS USING GDB: start
GDB like this ==2799==   /path/to/gdb /bin/echo ==2799== and then give
GDB the following command ==2799==   target remote | /usr/bin/vgdb
--pid=2799 ==2799== --pid is optional if only one valgrind process is
running ==2799== 
--2799-- REDIR: 0x40238e0 (ld-linux-x86-64.so.2:strlen) redirected to
0x580bb0e2 (vgPlain_amd64_linux_REDIR_FOR_strlen) --2799-- REDIR:
0x40220c0 (ld-linux-x86-64.so.2:index) redirected to 0x580bb0fc
(vgPlain_amd64_linux_REDIR_FOR_index) --2799-- Reading syms from
/usr/libexec/valgrind/vgpreload_core-amd64-linux.so --2799--
Considering
/usr/lib/debug/.build-id/ad/f1388be4d8781737b0c83fe111a5a9c6e930aa.debug
.. --2799--   .. build-id is valid --2799-- Reading syms from
/usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so --2799--
Considering
/usr/lib/debug/.build-id/d8/ec66cffcb23a75c3f15940674d6028709121f8.debug
.. --2799--   .. build-id is valid ==2799== WARNING: new redirection
conflicts with existing -- ignoring it --2799--     old: 0x040238e0
(strlen              ) R-> (0000.0) 0x580bb0e2
vgPlain_amd64_linux_REDIR_FOR_strlen --2799--     new: 0x040238e0
(strlen              ) R-> (2007.0) 0x048468a0 strlen --2799-- REDIR:
0x40222e0 (ld-linux-x86-64.so.2:strcmp) redirected to 0x4847780
(strcmp) --2799-- REDIR: 0x4021550 (ld-linux-x86-64.so.2:mempcpy)
redirected to 0x484b1a0 (mempcpy) --2799-- Reading syms from
/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 --2799--    object doesn't
have a symbol table --2799-- Reading syms from
/lib/x86_64-linux-gnu/libc.so.6 --2799--   Considering
/usr/lib/debug/.build-id/ee/3145ecaaff87a133daea77fbc3eecd458fa0d1.debug
.. --2799--   .. build-id is valid ==2799== WARNING: new redirection
conflicts with existing -- ignoring it --2799--     old: 0x04908540
(memalign            ) R-> (1011.0) 0x04845bc0 memalign --2799--
new: 0x04908540 (memalign            ) R-> (1017.0) 0x04845b90
aligned_alloc ==2799== WARNING: new redirection conflicts with existing
-- ignoring it --2799--     old: 0x04908540 (memalign            ) R->
(1011.0) 0x04845bc0 memalign --2799--     new: 0x04908540 (memalign
       ) R-> (1017.0) 0x04845b60 aligned_alloc --2799-- Reading syms
from /lib/x86_64-linux-gnu/libdl.so.2 --2799--   Considering
/usr/lib/debug/.build-id/53/eaa845e9ca621f159b0622daae7387cdea1e97.debug
.. --2799--   .. build-id is valid --2799-- Reading syms from
/lib/x86_64-linux-gnu/libpthread.so.0 --2799--   Considering
/usr/lib/debug/.build-id/26/820458adaf5d95718fb502d170fe374ae3ee70.debug
.. --2799--   .. build-id is valid --2799-- REDIR: 0x490e490
(libc.so.6:strnlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490e520 (libc.so.6:strpbrk) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490c640 (libc.so.6:strcmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x4921420
(libc.so.6:wcsnlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490b780 (libc.so.6:memset) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x491fd60 (libc.so.6:wcslen)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490adb0
(libc.so.6:memcpy@@GLIBC_2.14) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x491fb90 (libc.so.6:wcschr)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490c530
(libc.so.6:index) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490e550 (libc.so.6:rindex) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x491fc20 (libc.so.6:wcscmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490b9c0
(libc.so.6:stpncpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x4920170 (libc.so.6:wmemchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490e340 (libc.so.6:strncmp)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490ba30
(libc.so.6:strcasecmp) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490d8a0 (libc.so.6:strcspn) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x491fcb0 (libc.so.6:wcscpy)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490c4b0
(libc.so.6:strcat) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490e230 (libc.so.6:strncasecmp_l) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490acc0
(libc.so.6:bcmp) redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799--
REDIR: 0x490b6f0 (libc.so.6:memrchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490c5b0 (libc.so.6:strchrnul)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490d820
(libc.so.6:strcpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490bad0 (libc.so.6:strcasecmp_l) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490e100
(libc.so.6:strlen) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490e3e0 (libc.so.6:strncpy) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490b940 (libc.so.6:stpcpy)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490b4d0
(libc.so.6:memmove) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
==2799== Preferring higher priority redirection: --2799--     old:
0x049c1780 (__memcpy_avx_unalign) R-> (2018.0) 0x04848a60
__memcpy_avx_unaligned_erms --2799--     new: 0x049c1780
(__memcpy_avx_unalign) R-> (2018.1) 0x0484a2b0 memmove --2799-- REDIR:
0x490ac40 (libc.so.6:memchr) redirected to 0x48371b0
(_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490e710 (libc.so.6:strspn)
redirected to 0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490b5e0
(libc.so.6:mempcpy) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x490e190 (libc.so.6:strncasecmp) redirected to
0x48371b0 (_vgnU_ifunc_wrapper) --2799-- REDIR: 0x490b880
(libc.so.6:rawmemchr) redirected to 0x48371b0 (_vgnU_ifunc_wrapper)
--2799-- REDIR: 0x49c7850 (libc.so.6:__strrchr_avx2) redirected to
0x48462e0 (rindex) --2799-- REDIR: 0x49c4f00 (libc.so.6:__strlen_avx2)
redirected to 0x4846780 (strlen) --2799-- REDIR: 0x49c4610
(libc.so.6:__strcmp_avx2) redirected to 0x4847680 (strcmp) --2799--
REDIR: 0x49c65d0 (libc.so.6:__strncmp_avx2) redirected to 0x4846ed0
(strncmp) --2799-- REDIR: 0x49c41e0 (libc.so.6:__strchr_avx2)
redirected to 0x4846460 (index) --2799-- REDIR: 0x49c0d80
(libc.so.6:__memchr_avx2) redirected to 0x4847800 (memchr) --2799--
REDIR: 0x49c4420 (libc.so.6:__strchrnul_avx2) redirected to 0x484aca0
(strchrnul) --2799-- REDIR: 0x4907860 (libc.so.6:malloc) redirected to
0x4840740 (malloc) --2799-- REDIR: 0x49c1730
(libc.so.6:__mempcpy_avx_unaligned_erms) redirected to 0x484adb0
(mempcpy) --2799-- REDIR: 0x49c1780
(libc.so.6:__memcpy_avx_unaligned_erms) redirected to 0x484a2b0
(memmove) --2799-- REDIR: 0x4907e20 (libc.so.6:free) redirected to
0x4843110 (free) ==2799== ==2799== HEAP SUMMARY: ==2799==     in use at
exit: 0 bytes in 0 blocks ==2799==   total heap usage: 31 allocs, 31
frees, 5,017 bytes allocated ==2799== ==2799== All heap blocks were
freed -- no leaks are possible ==2799== ==2799== ERROR SUMMARY: 0
errors from 0 contexts (suppressed: 0 from 0)



$ # IS THE LATER VERSION ANY BETTER?

$ valgrind --leak-check=full \
          --track-origins=yes \
          --verbose \
          --log-file=valgrind-out-bash.txt \
          ./bash

malloc: variables.c:660: assertion botched
free: called with unallocated block argument
last command: (null)
Aborting...Aborted
[Prev in Thread]
Current Thread
[Next in Thread]
(Just making sure this went through.) Bug: Bash is not memory safe., Joshua Brown <=
Prev by Date: [bug #65670] Bash is not memory safe.
Next by Date: Re: 5.3-alpha: the `jobs' builtin prints foreground dead jobs with function substitutions
Previous by thread: [bug #65670] Bash is not memory safe.
Next by thread: macOS 14 objc `+initialize` forced crash due to fork after thread
Index(es):
- Date
- Thread