Bug 1901030
| Summary: | tcsh segfaults if non-ASCII characters are entered in a terminal configured to use 8-bit characters and LANG=en_US.UTF-8 | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Carlos Santos <casantos> |
| Component: | tcsh | Assignee: | Siteshwar Vashisht <svashisht> |
| Status: | CLOSED WONTFIX | QA Contact: | Karel Volný <kvolny> |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 8.3 | CC: | alrodrig, chorn, joburati, mkolbas, sujagtap |
| Target Milestone: | rc | ||
| Target Release: | 8.0 | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-07-10 12:06:10 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: | |||
Description of problem: tcsh segfaults if non-ascii characters are entered in a terminal configured to use 8-bit characters and LANG=en_US.UTF-8. Version-Release number of selected component (if applicable): tcsh-6.20.00-12.el8.x86_64 How reproducible: always Steps to Reproduce: 1. Use a terminal emulator (e.g. Gnome Terminal) configured for ISO8859-1. 2. Set locale/LANG to en_US.UTF-8. 3. Run tcsh. 4. Enter some non-ascii characters on the command line (e.g. ç ã ä). Actual results: The shell segfaults efter a short while. Pressing return, backspace or any other key 5 times makes it crash faster. Expected results: tcsh should not crash Additional info: The problem has been fixed in tcsh 6.21 by the following commits commit 49abb8817d18103cf3988df80c7ca0ded63b6596 Author: zoulasc <christos> Date: Fri Apr 26 16:09:39 2019 -0400 Fix prototype inconsistency (Corinna Vinschen) commit e120c55b6da0b68ef7adec3158ff5c45b14c52e7 Author: Amol Deshpande <amold.com> Date: Tue Feb 26 06:30:09 2019 +0000 Accidentally reversed #ifdef commit a7a11fda9081a214f1c0a7cd777ce709c22ed27c Author: Amol Deshpande <amold.com> Date: Tue Feb 26 06:24:33 2019 +0000 Fix breakage of NT bindkeys commit 1a9cf9aae4674b93f163a81ffab5457299fb10e1 Author: zoulasc <christos> Date: Sun Dec 16 13:42:28 2018 -0500 Fix PR/37: Segv on array dereference. commit 97449dbf9c0f1bdeb9ce580658f9a325cff07a03 Author: zoulasc <christos> Date: Fri Apr 28 09:14:30 2017 -0400 Handle 8-bit characters in bindkey (Dr. Werner Fink) commit 8e6dfd53321a0b0047f7d75db21a946c166c600b Author: Christos Zoulas <christos> Date: Fri Feb 17 11:17:27 2017 -0500 Unfortunately the AsciiOnly reversion causes a SEGV because *ch is used to index in the command array, and now contains INVALID_BYTE. env -i ./tcsh <meta>b tcsh-6.20.00-12.el8 has commit 8e6dfd53321a0b0047f7d75db21a946c166c600b applied as tcsh-6.20.00-008-guard-ascii-only-reversion.patch. I suggest to either cherry-pick the missing five patches or upgrade to 6.21.