Bug 1732645
| Summary: | [abrt] reaver: floor_ifunc_selector(): wash killed by SIGSEGV | ||||||||||||||||||||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Joao Marcos Floriano <joaomfloriano> | ||||||||||||||||||||||||||
| Component: | wireless-tools | Assignee: | Lubomir Rintel <lkundrak> | ||||||||||||||||||||||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||||||||||||||||||||
| Severity: | unspecified | Docs Contact: | |||||||||||||||||||||||||||
| Priority: | unspecified | ||||||||||||||||||||||||||||
| Version: | 30 | CC: | aoliva, arjun.is, codonell, dcbw, dj, fukidid, fweimer, jskarvad, jwharshaw, law, linville, lkundrak, mfabian, moceap, pfrankli, rth, siddhesh, vascom2 | ||||||||||||||||||||||||||
| Target Milestone: | --- | ||||||||||||||||||||||||||||
| Target Release: | --- | ||||||||||||||||||||||||||||
| Hardware: | x86_64 | ||||||||||||||||||||||||||||
| OS: | Unspecified | ||||||||||||||||||||||||||||
| URL: | https://retrace.fedoraproject.org/faf/reports/bthash/d540f6b01986b524285448d61c0d25d83c419d8b | ||||||||||||||||||||||||||||
| Whiteboard: | abrt_hash:d0eb2a1c5dd68ed2aa69a0eda997e9221dfa84e4;VARIANT_ID=workstation; | ||||||||||||||||||||||||||||
| Fixed In Version: | wireless-tools-29-25.fc30 wireless-tools-29-25.fc31 | Doc Type: | If docs needed, set a value | ||||||||||||||||||||||||||
| Doc Text: | Story Points: | --- | |||||||||||||||||||||||||||
| Clone Of: | Environment: | ||||||||||||||||||||||||||||
| Last Closed: | 2020-03-09 20:54:35 UTC | Type: | --- | ||||||||||||||||||||||||||
| Regression: | --- | Mount Type: | --- | ||||||||||||||||||||||||||
| Documentation: | --- | CRM: | |||||||||||||||||||||||||||
| Verified Versions: | Category: | --- | |||||||||||||||||||||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||||||||||||||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||||||||||||||||||||
| Embargoed: | |||||||||||||||||||||||||||||
| Attachments: |
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Description
Joao Marcos Floriano
2019-07-24 01:08:45 UTC
Created attachment 1593013 [details]
File: backtrace
Created attachment 1593014 [details]
File: cgroup
Created attachment 1593015 [details]
File: core_backtrace
Created attachment 1593016 [details]
File: cpuinfo
Created attachment 1593017 [details]
File: dso_list
Created attachment 1593018 [details]
File: environ
Created attachment 1593019 [details]
File: exploitable
Created attachment 1593020 [details]
File: limits
Created attachment 1593021 [details]
File: maps
Created attachment 1593022 [details]
File: mountinfo
Created attachment 1593023 [details]
File: open_fds
Created attachment 1593024 [details]
File: proc_pid_status
This is either glibc or gcc, reassigning to glibc for the start, because there were similar IFUNC errors. The problem is following: $ valgrind reaver reaver: Relink `/lib64/libiw.so.29' with `/lib64/libm.so.6' for IFUNC symbol `floor' Neoprávněný přístup do paměti (SIGSEGV) (core dumped [obraz paměti uložen]) ... =20037== Invalid read of size 1 ==20037== at 0x48CFEB2: floor (in /usr/lib64/libm-2.29.so) ==20037== by 0x400CD59: _dl_relocate_object (in /usr/lib64/ld-2.29.so) ==20037== by 0x40046A1: dl_main (in /usr/lib64/ld-2.29.so) ==20037== by 0x4019E2A: _dl_sysdep_start (in /usr/lib64/ld-2.29.so) ==20037== by 0x40021AB: _dl_start (in /usr/lib64/ld-2.29.so) ==20037== by 0x4001117: ??? (in /usr/lib64/ld-2.29.so) ==20037== Address 0x72 is not stack'd, malloc'd or (recently) free'd $ ldd /lib64/libiw.so.29 linux-vdso.so.1 (0x00007ffdbd15f000) libc.so.6 => /lib64/libc.so.6 (0x00007f1f4b211000) /lib64/ld-linux-x86-64.so.2 (0x00007f1f4b43d000) But libiw is already linked with the -lm, from the build log of wireless-tools: ... gcc -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -shared -o libiw.so.29 -Wl,-soname,libiw.so.29 -lm -lc iwlib.so ... If I remove '-Wl,--as-needed' it works as expected without segfault, but it was added there by the distribution LDFLAGS: $ rpm --eval %__global_ldflags -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld So something is broken here. “eu-readelf -s /lib64/libiw.so.29” shows: … 29: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UNDEF pow … 29: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UNDEF pow … 38: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UNDEF floor The link order in wireless-tools is this: gcc -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -shared -o libiw.so.29 -Wl,-soname,libiw.so.29 -lm -lc iwlib.so --as-needed is specified in such a way that the -lm and first -lc do not result in run-time dependencies (but not the implicit -lc). The toolchain behaves in a documented way here. (Despite the name, iwlib.so is a relocatable object here.) I think this is just one of the things that break with -as-needed and needs to be fixed in wireless-tools, by moving -lm after the objects that need it. Basically, change “-lm -lc iwlib.so” into “iwlib.so -lm”. I am applying Florian suggestion to wireless-tools-29-25. Thanks for this - it was preventing xmobar from building too for some time. FEDORA-2020-a334dc624d has been submitted as an update to Fedora 31. https://bodhi.fedoraproject.org/updates/FEDORA-2020-a334dc624d wireless-tools-29-25.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-5d27f4c3f9 wireless-tools-29-25.fc31 has been pushed to the Fedora 31 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-a334dc624d wireless-tools-29-25.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report. wireless-tools-29-25.fc31 has been pushed to the Fedora 31 stable repository. If problems still persist, please make note of it in this bug report. |