Bug 1055613
| Summary: | glibc scanf bug, breaks ATLAS build | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Volker Braun <vbraun.name> |
| Component: | glibc | Assignee: | Siddhesh Poyarekar <spoyarek> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | codonell, fweimer, jakub, law, mnewsome, pfrankli, spoyarek |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | glibc-2.18-12.fc20 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-02-01 04:03:26 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Volker, Thanks. Sorry about this. We'll get this fixed ASAP. Siddhesh, Would you mind looking at the backport? glibc-2.18-12.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/glibc-2.18-12.fc20 Package glibc-2.18-12.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing glibc-2.18-12.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-1830/glibc-2.18-12.fc20 then log in and leave karma (feedback). glibc-2.18-12.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: Glibc fails to parse 0 in scientific notation. This breaks the ATLAS build system, failing with a segfault in RunMADef (atlas-3.8.4) or an assertion failure in RunMulAdd (atlas-3.10.1). Version-Release number of selected component (if applicable): * Fedora 20 * glibc-devel-2.18-11.fc20 How reproducible: Always. Steps to Reproduce: $ cat test.c #include <stdio.h> int main() { float a, b; int r = sscanf("0e+0 42", "%f %f", &a, &b); printf("r=%d a=%f b=%f\n", r, a, b); return 0; } Actual results: $ gcc test.c && ./a.out r=1 a=0.000000 b=0.000000 Expected results: r=2 a=0.000000 b=42.000000 Additional info: * https://sourceware.org/bugzilla/show_bug.cgi?id=15917