View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0006146 | Taler | exchange | public | 2020-04-02 09:27 | 2021-09-02 16:14 |
| Reporter | fefe | Assigned To | Christian Grothoff | Resolution deadline | |
| Implementer | Reviewer | ||||
| Release signed by | Deployed by | ||||
| Verifier | Communicator | ||||
| Data protection authority notification required | No | ||||
| CSIRT notification required | No | ||||
| Estimated effort (hours) | Actual effort (hours) | 0 | |||
| Fast-track | No | ||||
| Work package | none | ||||
| Priority | normal | Severity | minor | Reproducibility | N/A |
| Status | closed | Resolution | fixed | ||
| Product Version | 0.7.0 | ||||
| Target Version | 0.7.1 | Fixed in Version | 0.7.1 | ||
| Summary | 0006146: Taler exchange is multithreaded yet uses GNUNET_STRINGS_absolute_time_to_string | ||||
| Description | GNUNET_STRINGS_absolute_time_to_string is not thread-safe. It returns a pointer to a static buffer, which is the same for all callers. So if two threads call it simultaneously, the two callers will clobber each other's output into the buffer and return a garbled value. Recommendation: add a GNUNET_STRINGS_absolute_time_to_string_r function that additionally takes a buffer and a buffer size as arguments. | ||||
| Steps To Reproduce | gnunet-0.12.2/src/util/strings.c 741 const char * 742 GNUNET_STRINGS_absolute_time_to_string (struct GNUNET_TIME_Absolute t) 743 { 744 static char buf[255]; 759 return buf; 760 } | ||||
| Tags | No tags attached. | ||||
| Fixed in a4653a7a0..225ddf0a2 (gnunet.git) and d1bf2692..340ac361 (exchange.git) by adding missing GNUNET_THREAD_LOCAL for routines with such static buffers. | |
| Fix committed to master branch. | |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-04-02 09:27 | fefe | New Issue | |
| 2020-04-02 09:27 | fefe | Status | new => assigned |
| 2020-04-02 09:27 | fefe | Assigned To | => Christian Grothoff |
| 2020-04-02 09:40 | Christian Grothoff | Note Added: 0015489 | |
| 2020-04-02 09:40 | Christian Grothoff | Status | assigned => informing |
| 2020-04-02 09:40 | Christian Grothoff | Resolution | open => fixed |
| 2020-04-02 09:40 | Christian Grothoff | Fixed in Version | => 0.7.1 |
| 2020-04-02 09:40 | Christian Grothoff | Target Version | => 0.7.1 |
| 2021-08-24 14:23 | Christian Grothoff | Status | informing => closed |
| 2021-09-02 16:13 | Christian Grothoff | ||
| 2021-09-02 16:14 | Christian Grothoff | Note Added: 0018269 |