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| author | Patsy Franklin <pfrankli@redhat.com> | 2017-08-29 15:53:28 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2017-08-29 15:53:28 +0200 |
| commit | 1cf1232cd4721dc155a5cf7d571e5b1dae506430 (patch) | |
| tree | bb78b85294b07816b899e8ecac58b9bc5a41475a /ChangeLog | |
| parent | f11f2f6e145d6fc6b52f6b0733599f8b96595733 (diff) | |
| download | glibc-1cf1232cd4721dc155a5cf7d571e5b1dae506430.tar.gz glibc-1cf1232cd4721dc155a5cf7d571e5b1dae506430.tar.xz glibc-1cf1232cd4721dc155a5cf7d571e5b1dae506430.zip | |
gconv: Consistently mangle NULL function pointers [BZ #22025]
Not mangling NULL pointers is not safe because with very low probability, a non-NULL function pointer can turn into a NULL pointer after mangling.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 8a58926b7b..59646acc66 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,23 @@ +2017-08-29 Patsy Franklin <pfrankli@redhat.com> + Jeff Law <law@redhat.com> + + [BZ #22025] + Mangle NULL pointers in iconv/gconv. + * iconv/gconv_cache.c (find_module): Demangle init_fct before + checking for NULL. Mangle __btowc_fct if init_fct is non-NULL. + * iconv/gconv_db.c (free_derivation): Check that __shlib_handle + is non-NULL before demangling the end_fct. Check for NULL + end_fct after demangling. + (__gconv_release_step): Demangle the end_fct before checking + it for NULL. Remove assert on __shlibc_handle != NULL. + (gen_steps): Don't check btowc_fct for NULL before mangling. + Demangle init_fct before checking for NULL. + (increment_counter): Likewise. + * gconv_dl.c (__gconv_find_shlib): Don't check init_fct or + end_fct for NULL before mangling. + * wcsmbs/btowc.c (__btowc): Demangle btowc_fct before checking + for NULL. + 2017-08-29 Akhilesh Kumar <akhilesh.k@samsung.com> [BZ #21971] |