| Ticket UUID: | 52dbc4b3f8ef52c40eb8dd2080c5de48a14cd49c | |||
| Title: | tclInterp.c: Tcl_Free() called through pointer of incorrect type | |||
| Type: | Bug | Version: | 8.6.13 | |
| Submitter: | chrstphrchvz | Created on: | 2023-10-13 08:35:33 | |
| Subsystem: | 20. [interp] | Assigned To: | jan.nijtmans | |
| Priority: | 5 Medium | Severity: | Minor | |
| Status: | Closed | Last Modified: | 2023-10-17 09:53:47 | |
| Resolution: | Fixed | Closed By: | chrstphrchvz | |
| Closed on: | 2023-10-17 09:53:47 | |||
| Description: |
Tcl_Free() is not a Tcl_LimitHandlerDeleteProc. Nothing in core Tcl calls Tcl_LimitAddHandler() with TCL_DYNAMIC as the deleteProc, but I predict that doing so would cause UBSan -fsanitize=function errors with the following:
runtime error: call to function TclpFree through pointer to incorrect function type 'void (*)(void *)'
A workaround would be to use a wrapper function; see attached patch. | |||
| User Comments: |
chrstphrchvz added on 2023-10-17 09:53:47:
This was fixed in [e75f319dc8cf]. Thanks, Jan! | |||
Attachments:
- 52dbc4b3f8ef.diff [download] added by chrstphrchvz on 2023-10-13 08:42:38. [details]