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glibc/libio
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Dmitry V. Levin f056ac8363 libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 
Commit a601b74d31 aka glibc-2.23~693
("In preparation for fixing BZ#16734, fix failure in misc/tst-error1-mem
when _G_HAVE_MMAP is turned off.") introduced a regression:
_IO_unbuffer_all now invokes _IO_wsetb to free wide buffers of all
files, including legacy standard files which are small statically
allocated objects that do not have wide buffers and the _mode member,
causing memory corruption.

Another memory corruption in _IO_unbuffer_all happens when -1
is assigned to the _mode member of legacy standard files that
do not have it.

[BZ #24228]
* libio/genops.c (_IO_unbuffer_all)
[SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)]: Do not attempt to free wide
buffers and access _IO_FILE_complete members of legacy libio streams.
* libio/tst-bz24228.c: New file.
* libio/tst-bz24228.map: Likewise.
* libio/Makefile [build-shared] (tests): Add tst-bz24228.
[build-shared] (generated): Add tst-bz24228.mtrace and
tst-bz24228.check.
[run-built-tests && build-shared] (tests-special): Add
$(objpfx)tst-bz24228-mem.out.
(LDFLAGS-tst-bz24228, tst-bz24228-ENV): New variables.
($(objpfx)tst-bz24228-mem.out): New rule.

(cherry picked from commit 21cc130b78)
2019-06-20 17:32:07 +00:00
..
bits Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fbufsize.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__flbf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fpending.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fpurge.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__freadable.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__freading.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fsetlocking.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fwritable.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
__fwriting.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
_G_config.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bug-fopena+.c
bug-fseek.c
bug-ftell.c
bug-memstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
bug-mmap-fflush.c
bug-rewind2.c
bug-rewind.c
bug-ungetc2.c
bug-ungetc3.c
bug-ungetc4.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bug-ungetc.c
bug-ungetwc1.c
bug-ungetwc2.c
bug-wfflush.c
bug-wmemstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
bug-wsetpos.c
clearerr_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
clearerr.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Depend
fcloseall.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
feof_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
feof.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ferror_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ferror.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
filedoalloc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fileno.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fileops.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fmemopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fputc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fputc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fputwc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fputwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
freopen64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
freopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fseek.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fseeko64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fseeko.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ftello64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ftello.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fwide.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fwprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fwscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
genops.c libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 2019-06-20 17:32:07 +00:00
getc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getchar_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getchar.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getwc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getwchar_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getwchar.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofclose.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofdopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofflush_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofflush.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgetpos64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgetpos.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgets_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgets.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgetws_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofgetws.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofopen64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofopncook.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofputs_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofputs.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofputws_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofputws.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofread_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofread.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofsetpos64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofsetpos.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioftell.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofwide.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofwrite_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iofwrite.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iogetdelim.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iogetline.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iogets.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iogetwline.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iolibio.h Deprecate external use of libio.h and _G_config.h. 2017-12-24 09:03:28 -08:00
iopadn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iopopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioputs.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioseekoff.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioseekpos.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iosetbuffer.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iosetvbuf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioungetc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioungetwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iovdprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iovsprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iovsscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iovswscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
iowpadn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc_fatal.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libio.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libioP.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makefile libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 2019-06-20 17:32:07 +00:00
memstream.c libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00
obprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldfileops.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldfmemopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofclose.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofdopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofgetpos64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofgetpos.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofsetpos64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiofsetpos.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldiopopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldpclose.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldstdfiles.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
oldtmpfile.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pclose.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
peekc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putchar_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putchar.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putwc_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putwchar_u.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putwchar.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
rewind.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setbuf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setlinebuf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdfiles.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdio.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdio.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strfile.h libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00
strops.c libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00
swprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
swscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-fmemopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-freopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-freopen.sh Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst_getwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst_getwc.input
tst_putwc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst_swprintf.c
tst_swscanf.c
tst_wprintf2.c
tst_wprintf.c
tst_wscanf.c
tst_wscanf.input
tst-atime.c
tst-bz22415.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-bz24228.c libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 2019-06-20 17:32:07 +00:00
tst-bz24228.map libio: do not attempt to free wide buffers of legacy streams [BZ #24228] 2019-06-20 17:32:07 +00:00
tst-eof.c
tst-ext2.c
tst-ext.c
tst-fgetwc.c
tst-fgetwc.input
tst-fgetws.c
tst-fopenloc2.c
tst-fopenloc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-fputws.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-freopen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-fseek.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-ftell-active-handler.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-ftell-append.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-ftell-partial-wide.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-fwrite-error.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-memstream1.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-memstream2.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-memstream3.c libio: Rename _FWRITE to FWRITE_FUNC 2018-01-29 23:00:17 +01:00
tst-mmap2-eofsync.c 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
tst-mmap-eofsync.c
tst-mmap-fflushsync.c
tst-mmap-offend.c
tst-mmap-setvbuf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-popen1.c
tst-setvbuf1.c
tst-sscanf.c
tst-swscanf.c
tst-ungetwc1.c
tst-ungetwc2.c
tst-vtables-common.c libio: Add tst-vtables, tst-vtables-interposed 2018-07-03 17:57:14 +02:00
tst-vtables-interposed.c libio: Add tst-vtables, tst-vtables-interposed 2018-07-03 17:57:14 +02:00
tst-vtables.c libio: Add tst-vtables, tst-vtables-interposed 2018-07-03 17:57:14 +02:00
tst-wfile-sync.c Fix crash in _IO_wfile_sync (bug 20568) 2019-05-15 17:26:58 +02:00
tst-wfile-sync.input Fix crash in _IO_wfile_sync (bug 20568) 2019-05-15 17:26:58 +02:00
tst-widetext.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-widetext.input Finish change from “Bengali” to “Bangla” 2017-09-09 12:41:54 +02:00
tst-wmemstream1.c
tst-wmemstream2.c
tst-wmemstream3.c libio: Rename _FWRITE to FWRITE_FUNC 2018-01-29 23:00:17 +01:00
vasprintf.c libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00
Versions Single threaded stdio optimization 2017-07-04 16:05:12 +01:00
vscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
vsnprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
vswprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
vtables.c libio: Disable vtable validation in case of interposition [BZ #23313] 2018-07-03 15:54:49 +02:00
vwprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
vwscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wfiledoalloc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wfileops.c Fix crash in _IO_wfile_sync (bug 20568) 2019-05-15 17:26:58 +02:00
wgenops.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wmemstream.c libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00
wprintf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wscanf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wstrops.c libio: Avoid _allocate_buffer, _free_buffer function pointers [BZ #23236] 2018-06-01 10:43:06 +02:00