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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sources.redhat.com Subject: [Bug dynamic-link/14370] SIGFPE in 'ldd -r' Date: Sun, 02 Sep 2012 22:57:00 -0000 [thread overview] Message-ID: <bug-14370-131-xpvCVDEkJM@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-14370-131@http.sourceware.org/bugzilla/> http://sourceware.org/bugzilla/show_bug.cgi?id=14370 H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |NEW --- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2012-09-02 22:57:15 UTC --- We can add check like: diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index 33847f0..e09b413 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -388,6 +388,11 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, { # ifndef RTLD_BOOTSTRAP # ifndef SHARED + if (__builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_NOTYPE, + 1) + && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_TLS, + 1)) + goto non_tls; CHECK_STATIC_TLS (map, sym_map); # else if (!TRY_STATIC_TLS (map, sym_map)) @@ -418,6 +423,11 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, block we subtract the offset from that of the TLS block. */ if (sym != NULL) { + if (__builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_NOTYPE, + 1) + && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_TLS, + 1)) + goto non_tls; CHECK_STATIC_TLS (map, sym_map); *reloc_addr += sym_map->l_tls_offset - sym->st_value; } @@ -433,6 +443,11 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, thread pointer. */ if (sym != NULL) { + if (__builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_NOTYPE, + 1) + && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) != STT_TLS, + 1)) + goto non_tls; CHECK_STATIC_TLS (map, sym_map); *reloc_addr += sym->st_value - sym_map->l_tls_offset; } @@ -476,6 +491,20 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, break; # endif /* !RTLD_BOOTSTRAP */ } + +# ifndef RTLD_BOOTSTRAP + return; + +non_tls: + { + const char *strtab; + strtab = (const char *) D_PTR (map, l_info[DT_STRTAB]); + _dl_error_printf ("\ + reloc type 0x%x against non-TLS symbol `%s' in %s\n", + r_type, strtab + refsym->st_name, + rtld_progname ?: "<program name unknown>"); + } +# endif } } -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
next prev parent reply other threads:[~2012-09-02 22:57 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-07-18 10:05 [Bug dynamic-link/14370] New: " pluto at agmk dot net 2012-07-18 10:11 ` [Bug dynamic-link/14370] " aj at suse dot de 2012-07-18 10:49 ` pluto at agmk dot net 2012-07-18 10:54 ` jakub at redhat dot com 2012-07-18 11:00 ` pluto at agmk dot net 2012-07-18 12:37 ` pluto at agmk dot net 2012-07-24 2:04 ` carlos_odonell at mentor dot com 2012-07-24 6:14 ` pluto at agmk dot net 2012-09-02 20:00 ` hjl.tools at gmail dot com 2012-09-02 22:57 ` hjl.tools at gmail dot com [this message] 2012-09-03 2:54 ` bugdal at aerifal dot cx 2012-09-03 13:39 ` carlos_odonell at mentor dot com 2012-09-03 15:29 ` pluto at agmk dot net 2012-09-03 18:59 ` hjl.tools at gmail dot com 2012-09-03 20:07 ` aj at suse dot de 2012-09-04 19:09 ` [Bug dynamic-link/14370] ld.so crashes on mismatched TLS/non-TLS symbols hjl.tools at gmail dot com 2012-09-04 19:41 ` carlos_odonell at mentor dot com 2012-09-04 21:32 ` hjl.tools at gmail dot com 2012-09-04 22:03 ` carlos_odonell at mentor dot com 2012-09-04 22:15 ` bugdal at aerifal dot cx 2012-09-04 22:22 ` hjl.tools at gmail dot com 2012-09-04 23:26 ` bugdal at aerifal dot cx 2012-09-05 15:24 ` ppluzhnikov at google dot com 2012-09-05 15:30 ` hjl.tools at gmail dot com 2012-12-04 0:00 ` carlos at systemhalted dot org 2013-10-02 22:44 ` neleai at seznam dot cz 2014-06-17 18:59 ` fweimer at redhat dot com 2023-07-30 16:53 ` sam at gentoo dot org
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