Message ID | 4b41e5f384f0416235a83e563823f18595484914.1666877952.git.szabolcs.nagy@arm.com |
---|---|
State | Superseded |
Headers |
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Series |
patches from the morello port
|
|
Checks
Context | Check | Description |
---|---|---|
dj/TryBot-apply_patch | success | Patch applied to master at the time it was sent |
Commit Message
Szabolcs Nagy
Oct. 27, 2022, 3:33 p.m. UTC
The iconv buffer sizes must not include the \0 string terminator. When \0 cannot be part of a valid character encoding glibc iconv would copy it to the output as expected, but then later the explicit output termination with *outbufpos = '\0' is out of bounds. --- iconv/tst-iconv-mt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Comments
* Szabolcs Nagy via Libc-alpha: > The iconv buffer sizes must not include the \0 string terminator. > > When \0 cannot be part of a valid character encoding glibc iconv > would copy it to the output as expected, but then later the explicit > output termination with *outbufpos = '\0' is out of bounds. > --- > iconv/tst-iconv-mt.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/iconv/tst-iconv-mt.c b/iconv/tst-iconv-mt.c > index daaebd273b..0320885c06 100644 > --- a/iconv/tst-iconv-mt.c > +++ b/iconv/tst-iconv-mt.c > @@ -58,11 +58,11 @@ worker (void * arg) > > char ascii[] = CONV_INPUT; > char *inbufpos = ascii; > - size_t inbytesleft = sizeof (CONV_INPUT); > + size_t inbytesleft = sizeof (CONV_INPUT) - 1; > > char *utf8 = xcalloc (sizeof (CONV_INPUT), 1); > char *outbufpos = utf8; > - size_t outbytesleft = sizeof (CONV_INPUT); > + size_t outbytesleft = sizeof (CONV_INPUT) - 1; > > if (tidx < TCOUNT/2) > /* The first half of the worker thread pool synchronize together here, I would prefer to remove the null terminator and replace strncmp with TEST_COMPARE_BLOB. Thanks, Florian
diff --git a/iconv/tst-iconv-mt.c b/iconv/tst-iconv-mt.c index daaebd273b..0320885c06 100644 --- a/iconv/tst-iconv-mt.c +++ b/iconv/tst-iconv-mt.c @@ -58,11 +58,11 @@ worker (void * arg) char ascii[] = CONV_INPUT; char *inbufpos = ascii; - size_t inbytesleft = sizeof (CONV_INPUT); + size_t inbytesleft = sizeof (CONV_INPUT) - 1; char *utf8 = xcalloc (sizeof (CONV_INPUT), 1); char *outbufpos = utf8; - size_t outbytesleft = sizeof (CONV_INPUT); + size_t outbytesleft = sizeof (CONV_INPUT) - 1; if (tidx < TCOUNT/2) /* The first half of the worker thread pool synchronize together here,