Your message dated Sun, 08 Nov 2020 21:45:53 +0000
with message-id <e1kbsvv-000iv7...@fasolo.debian.org>
and subject line Bug#973479: Removed package(s) from unstable
has caused the Debian Bug report #949191,
regarding clang-8: uses regexec without support for REG_STARTEND with
-fsanitize=address
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 ow...@bugs.debian.org
immediately.)
--
949191: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949191
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: clang-8
Version: 1:8.0.1-4
Severity: normal
When clang-8 compiles with -fsanitize=address, it substitutes any calls
to regexec with a version that does not support REG_STARTEND. This
makes code that is compiled fail unexpectedly or even produce spurious
sanitization errors, since with that option the buffer need not be
NUL-terminated.
While REG_STARTEND is not in POSIX, it is found on the BSDs and Linux
and users may reasonably rely on the fact that it is present on those
systems.
This issue has caused a bug in the Git testsuite as seen at
https://lore.kernel.org/git/20200117174931.ga8...@coredump.intra.peff.net/T/#t.
I've attached a testcase. Without -fsanitize=address, it succeeds
silently. With -fsanitize=address, it fails and prints an error.
Please either fix the regexec implementation such that it is fully
functional compared to the version in glibc or disable the sanitization
of regexec until it has feature parity.
-- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.3.0-3-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages clang-8 depends on:
ii binutils 2.33.50.20200115-2
ii libc6 2.29-9
ii libc6-dev 2.29-9
ii libclang-common-8-dev 1:8.0.1-4
ii libclang1-8 1:8.0.1-4
ii libgcc-8-dev 8.3.0-26
ii libgcc-s1 [libgcc1] 10-20200107-1
ii libgcc1 1:9.2.1-23
ii libllvm8 1:8.0.1-4
ii libobjc-8-dev 8.3.0-26
ii libstdc++-8-dev 8.3.0-26
ii libstdc++6 9.2.1-23
Versions of packages clang-8 recommends:
ii libomp-8-dev 1:8.0.1-4
ii llvm-8-dev 1:8.0.1-4
ii python3 3.7.5-3
Versions of packages clang-8 suggests:
pn clang-8-doc <none>
-- no debconf information
--
brian m. carlson: Houston, Texas, US
OpenPGP: https://keybase.io/bk2204
#include <stdio.h>
#include <sys/types.h>
#include <regex.h>
int main(void)
{
regex_t r;
const char s[] = "ban\0ana";
regmatch_t pmatch[10];
pmatch[0].rm_so = 0;
pmatch[0].rm_eo = sizeof(s);
if (regcomp(&r, "ana", 0))
return 2;
if (regexec(&r, s, sizeof(pmatch)/sizeof(pmatch[0]), pmatch, REG_STARTEND)) {
fprintf(stderr, "failed to match\n");
regfree(&r);
return 3;
}
regfree(&r);
return 0;
}
signature.asc
Description: PGP signature
--- End Message ---
--- Begin Message ---
Version: 1:8.0.1-10+rm
Dear submitter,
as the package llvm-toolchain-8 has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see https://bugs.debian.org/973479
The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.
Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmas...@ftp-master.debian.org.
Debian distribution maintenance software
pp.
Joerg Jaspert (the ftpmaster behind the curtain)
--- End Message ---
