Bug 1901955
| Summary: | Segment fault when call log4c_init twice. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora EPEL | Reporter: | lexand <yamsjix> |
| Component: | log4c | Assignee: | František Dvořák <valtri> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | epel7 | CC: | steve.traylen, valtri, yamsjix |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | log4c-1.2.4-2.el7 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-03-28 02:04:38 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: | |||
Bug in rawhide also. FEDORA-EPEL-2021-0afde3da1b has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-0afde3da1b FEDORA-EPEL-2021-0afde3da1b has been pushed to the Fedora EPEL 7 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-0afde3da1b See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. Conrect: Expected results: Step 3 run sucessfully. Actual results: Segment fault & core dump And this BUG is also appeared in epel6 & epel8. They should be fixed anyway. For EPEL7, the fix is in the testing repository. Fedora branches and EPEL8 should be OK. FEDORA-EPEL-2021-0afde3da1b has been pushed to the Fedora EPEL 7 stable repository. If problem still persists, please make note of it in this bug report. |
Description of problem: Segment fault when call log4c_init twice. Version-Release number of selected component (if applicable): 1.2.4 How reproducible: Steps to Reproduce: 1. call log4c_init 2. call log4c_fini 3. call log4c_init Actual results: Step 3 run sucessfully. Expected results: Segment fault & core dump Additional info: The code is below: static sd_hash_t* log4c_layout_types(void) { static sd_hash_t* types = NULL; if (!types) types = sd_hash_new(20, NULL); return types; } extern void log4c_layout_types_free( void ) { sd_hash_t * types = log4c_layout_types(); if ( types != NULL ) { sd_hash_delete( types ); } } "types" in function log4c_layout_types_free has delete, but the pointer need to be set to nullptr. It need to change to code below: static sd_hash_t* types = NULL; static sd_hash_t* log4c_layout_types(void) { if (!types) types = sd_hash_new(20, NULL); return types; } extern void log4c_layout_types_free( void ) { //sd_hash_t * types = log4c_layout_types(); if ( types != NULL ) { sd_hash_delete( types ); } types = NULL; } The bug is existed in all packages, neither Fedora EPEL or EPEL for RHEL, in verison 1.2.4。