This is the mail archive of the libc-hacker@sources.redhat.com mailing list for the glibc project.
Note that libc-hacker is a closed list. You may look at the archives of this list, but subscription and posting are not open.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Hi, if the allocation of storage in allocate_dtv fails a NULL pointer gets passed to _dl_allocate_tls_init and is accessed before the check. blue skies, Martin. 2003-01-30 Martin Schwidefsky <schwidefsky@de.ibm.com> * sysdeps/generic/dl-tls.c (_dl_allocate_tls_init): Avoid NULL pointer access. diff -urN libc/sysdeps/generic/dl-tls.c libc-fixed/sysdeps/generic/dl-tls.c --- libc/sysdeps/generic/dl-tls.c Mon Jan 13 10:34:18 2003 +++ libc-fixed/sysdeps/generic/dl-tls.c Wed Jan 29 16:37:37 2003 @@ -329,7 +329,7 @@ internal_function _dl_allocate_tls_init (void *result) { - dtv_t *dtv = GET_DTV (result); + dtv_t *dtv; struct dtv_slotinfo_list *listp; size_t total = 0; @@ -337,6 +337,8 @@ /* The memory allocation failed. */ return NULL; + dtv = GET_DTV (result); + /* We have to look prepare the dtv for all currently loaded modules using TLS. For those which are dynamically loaded we add the values indicating deferred allocation. */
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |