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Bug#821358: marked as done (nss_hesiod segfaults in sock_eq)

Your message dated Sun, 27 Nov 2016 21:47:09 +0000
with message-id <E1cB7Hx-0001YR-Kh@fasolo.debian.org>
and subject line Bug#821358: fixed in glibc 2.19-18+deb8u7
has caused the Debian Bug report #821358,
regarding nss_hesiod segfaults in sock_eq
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
821358: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=821358
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libc6
Version: 2.22-6
Severity: important
Tags: upstream
Forwarded: https://sourceware.org/bugzilla/show_bug.cgi?id=19573

glibc 2.22 broke nss_hesiod so that it segfaults on almost all uses.  To 
reproduce:

# sed -i 's/^passwd:.*/& hesiod/' /etc/nsswitch.conf
# cat > /etc/hesiod.conf <<EOF
lhs=.ns
rhs=.athena.mit.edu
EOF
# id andersk
Segmentation fault (core dumped)

Backtrace:

(gdb) run
Starting program: /usr/bin/id andersk
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff6531aa3 in sock_eq (a1=a1@entry=0x7ffff7bb7af4 <_res+20>, a2=0x0) at res_send.c:1629
1629	res_send.c: No such file or directory.
(gdb) bt
#0  0x00007ffff6531aa3 in sock_eq (a1=a1@entry=0x7ffff7bb7af4 <_res+20>, a2=0x0) at res_send.c:1629
#1  0x00007ffff65333f7 in __libc_res_nsend (statp=0x7ffff7bb7ae0 <_res>, buf=buf@entry=0x7fffffffdec0 "\322\325\001", buflen=45, buf2=buf2@entry=0x0, 
    buflen2=buflen2@entry=0, ans=ans@entry=0x7fffffffe2c0 "`\343\377\377\377\177", anssiz=1024, ansp=0x0, ansp2=0x0, nansp2=0x0, resplen2=0x0, 
    ansp2_malloced=0x0) at res_send.c:416
#2  0x00007ffff6533bbd in __GI___res_nsend (statp=<optimized out>, buf=buf@entry=0x7fffffffdec0 "\322\325\001", buflen=<optimized out>, 
    ans=ans@entry=0x7fffffffe2c0 "`\343\377\377\377\177", anssiz=anssiz@entry=1024) at res_send.c:638
#3  0x00007ffff67417d6 in get_txt_records (class=1, name=name@entry=0x610a80 "39270.uid.ns.athena.mit.edu", ctx=0x60f8c0) at hesiod.c:374
#4  0x00007ffff6741d95 in hesiod_resolve (context=context@entry=0x60f8c0, name=name@entry=0x7fffffffe780 "39270", type=type@entry=0x7ffff67432c6 "uid")
    at hesiod.c:240
#5  0x00007ffff6742aa2 in lookup (name=name@entry=0x7fffffffe780 "39270", type=type@entry=0x7ffff67432c6 "uid", 
    pwd=pwd@entry=0x7ffff7bb5e20 <resbuf.11041>, buffer=buffer@entry=0x60f260 "saned", buflen=buflen@entry=1024, errnop=errnop@entry=0x7ffff7fe56b8)
    at nss_hesiod/hesiod-pwd.c:63
#6  0x00007ffff6742c2b in _nss_hesiod_getpwuid_r (uid=<optimized out>, pwd=0x7ffff7bb5e20 <resbuf.11041>, buffer=0x60f260 "saned", buflen=1024, 
    errnop=0x7ffff7fe56b8) at nss_hesiod/hesiod-pwd.c:112
#7  0x00007ffff78ccc0c in __getpwuid_r (uid=uid@entry=39270, resbuf=resbuf@entry=0x7ffff7bb5e20 <resbuf.11041>, buffer=0x60f260 "saned", 
    buflen=buflen@entry=1024, result=result@entry=0x7fffffffe848) at ../nss/getXXbyYY_r.c:266
#8  0x00007ffff78cc52e in getpwuid (uid=39270) at ../nss/getXXbyYY.c:116
#9  0x00000000004022b9 in ?? ()
#10 0x00007ffff7835610 in __libc_start_main (main=0x401b20, argc=2, argv=0x7fffffffe9b8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fffffffe9a8) at libc-start.c:291
#11 0x00000000004026ac in ?? ()

See also:

https://sourceware.org/bugzilla/show_bug.cgi?id=19573
https://bugzilla.redhat.com/show_bug.cgi?id=1252570
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1571456

Anders

--- End Message ---
--- Begin Message --- 
Source: glibc
Source-Version: 2.19-18+deb8u7

We believe that the bug you reported is fixed in the latest version of
glibc, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 821358@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Aurelien Jarno <aurel32@debian.org> (supplier of updated glibc package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Thu, 24 Nov 2016 23:48:11 +0100
Source: glibc
Binary: libc-bin libc-dev-bin glibc-doc glibc-source locales locales-all nscd multiarch-support libc6 libc6-dev libc6-dbg libc6-pic libc6-udeb libc6.1 libc6.1-dev libc6.1-dbg libc6.1-pic libc6.1-udeb libc0.3 libc0.3-dev libc0.3-dbg libc0.3-pic libc0.3-udeb libc0.1 libc0.1-dev libc0.1-dbg libc0.1-pic libc0.1-udeb libc6-i386 libc6-dev-i386 libc6-sparc libc6-dev-sparc libc6-sparc64 libc6-dev-sparc64 libc6-s390 libc6-dev-s390 libc6-amd64 libc6-dev-amd64 libc6-powerpc libc6-dev-powerpc libc6-ppc64 libc6-dev-ppc64 libc6-mips32 libc6-dev-mips32 libc6-mipsn32 libc6-dev-mipsn32 libc6-mips64 libc6-dev-mips64 libc0.1-i386 libc0.1-dev-i386 libc6-x32 libc6-dev-x32 libc6-i686 libc6-xen libc0.1-i686 libc0.3-i686 libc0.3-xen libc6.1-alphaev67 libc6-loongson2f libnss-dns-udeb libnss-files-udeb
Architecture: source all
Version: 2.19-18+deb8u7
Distribution: stable
Urgency: medium
Maintainer: Aurelien Jarno <aurel32@debian.org>
Changed-By: Aurelien Jarno <aurel32@debian.org>
Description:
 glibc-doc  - GNU C Library: Documentation
 glibc-source - GNU C Library: sources
 libc-bin   - GNU C Library: Binaries
 libc-dev-bin - GNU C Library: Development binaries
 libc0.1    - GNU C Library: Shared libraries
 libc0.1-dbg - GNU C Library: detached debugging symbols
 libc0.1-dev - GNU C Library: Development Libraries and Header Files
 libc0.1-dev-i386 - GNU C Library: 32bit development libraries for AMD64
 libc0.1-i386 - GNU C Library: 32bit shared libraries for AMD64
 libc0.1-i686 - GNU C Library: Shared libraries [i686 optimized]
 libc0.1-pic - GNU C Library: PIC archive library
 libc0.1-udeb - GNU C Library: Shared libraries - udeb (udeb)
 libc0.3    - GNU C Library: Shared libraries
 libc0.3-dbg - GNU C Library: detached debugging symbols
 libc0.3-dev - GNU C Library: Development Libraries and Header Files
 libc0.3-i686 - GNU C Library: Shared libraries [i686 optimized]
 libc0.3-pic - GNU C Library: PIC archive library
 libc0.3-udeb - GNU C Library: Shared libraries - udeb (udeb)
 libc0.3-xen - GNU C Library: Shared libraries [Xen version]
 libc6      - GNU C Library: Shared libraries
 libc6-amd64 - GNU C Library: 64bit Shared libraries for AMD64
 libc6-dbg  - GNU C Library: detached debugging symbols
 libc6-dev  - GNU C Library: Development Libraries and Header Files
 libc6-dev-amd64 - GNU C Library: 64bit Development Libraries for AMD64
 libc6-dev-i386 - GNU C Library: 32-bit development libraries for AMD64
 libc6-dev-mips32 - GNU C Library: o32 Development Libraries for MIPS
 libc6-dev-mips64 - GNU C Library: 64bit Development Libraries for MIPS64
 libc6-dev-mipsn32 - GNU C Library: n32 Development Libraries for MIPS64
 libc6-dev-powerpc - GNU C Library: 32bit powerpc development libraries for ppc64
 libc6-dev-ppc64 - GNU C Library: 64bit Development Libraries for PowerPC64
 libc6-dev-s390 - GNU C Library: 32bit Development Libraries for IBM zSeries
 libc6-dev-sparc - GNU C Library: 32bit Development Libraries for SPARC
 libc6-dev-sparc64 - GNU C Library: 64bit Development Libraries for UltraSPARC
 libc6-dev-x32 - GNU C Library: X32 ABI Development Libraries for AMD64
 libc6-i386 - GNU C Library: 32-bit shared libraries for AMD64
 libc6-i686 - GNU C Library: Shared libraries [i686 optimized]
 libc6-loongson2f - GNU C Library: Shared libraries (Loongson 2F optimized)
 libc6-mips32 - GNU C Library: o32 Shared libraries for MIPS
 libc6-mips64 - GNU C Library: 64bit Shared libraries for MIPS64
 libc6-mipsn32 - GNU C Library: n32 Shared libraries for MIPS64
 libc6-pic  - GNU C Library: PIC archive library
 libc6-powerpc - GNU C Library: 32bit powerpc shared libraries for ppc64
 libc6-ppc64 - GNU C Library: 64bit Shared libraries for PowerPC64
 libc6-s390 - GNU C Library: 32bit Shared libraries for IBM zSeries
 libc6-sparc - GNU C Library: 32bit Shared libraries for SPARC
 libc6-sparc64 - GNU C Library: 64bit Shared libraries for UltraSPARC
 libc6-udeb - GNU C Library: Shared libraries - udeb (udeb)
 libc6-x32  - GNU C Library: X32 ABI Shared libraries for AMD64
 libc6-xen  - GNU C Library: Shared libraries [Xen version]
 libc6.1    - GNU C Library: Shared libraries
 libc6.1-alphaev67 - GNU C Library: Shared libraries (EV67 optimized)
 libc6.1-dbg - GNU C Library: detached debugging symbols
 libc6.1-dev - GNU C Library: Development Libraries and Header Files
 libc6.1-pic - GNU C Library: PIC archive library
 libc6.1-udeb - GNU C Library: Shared libraries - udeb (udeb)
 libnss-dns-udeb - GNU C Library: NSS helper for DNS - udeb (udeb)
 libnss-files-udeb - GNU C Library: NSS helper for files - udeb (udeb)
 locales    - GNU C Library: National Language (locale) data [support]
 locales-all - GNU C Library: Precompiled locale data
 multiarch-support - Transitional package to ensure multiarch compatibility
 nscd       - GNU C Library: Name Service Cache Daemon
Closes: 821358 843904
Changes:
 glibc (2.19-18+deb8u7) stable; urgency=medium
 .
   [ Aurelien Jarno ]
   * Update from upstream stable branch:
     - Do not unconditionally use the fsqrt instruction on 64-bit PowerPC
       CPUs.  Closes: #843904.
   * debian/patches/any/cvs-hesiod-resolver.diff: patch from upstream to
     fix a regression introduced by cvs-resolv-ipv6-nameservers.diff in
     hesiod.  Closes: #821358.
   * debian/sysdeps/{amd64,i386,x32}.mk: disable lock elision (aka Intel TSX)
     on x86 architectures. This causes programs (wrongly) unlocking an already
     unlocked mutex to abort. More importantly most of the other distributions
     decided to disable it, so we don't want to be the only distribution left
     testing this code path.
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--- End Message ---
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