diff options
| author | Tom Tromey <tom@tromey.com> | 2025-10-13 21:36:56 -0600 |
|---|---|---|
| committer | Tom Tromey <tom@tromey.com> | 2025-10-13 21:40:19 -0600 |
| commit | 4109b068142bc8e7c19728c163c5685fdaeea851 (patch) | |
| tree | d114d10337209563afa3916b8d0fe88aec8e143d /gdb/python/py-block.c | |
| parent | 2358bcf0459f7f6d49622e8ad0bfbb9a2bb10b5f (diff) | |
| download | binutils-4109b068142bc8e7c19728c163c5685fdaeea851.zip binutils-4109b068142bc8e7c19728c163c5685fdaeea851.tar.gz binutils-4109b068142bc8e7c19728c163c5685fdaeea851.tar.bz2 | |
Fix use-after-free when destroying objfile
The recent patch to heap-allocate compunit_symtabs introduced a
use-after-free that can occur when destroying an objfile. The bug
here is that the objfile obstack is destroyed before compunit_symtabs;
but the compunit_symtabs destructor refers to the symtabs, which are
allocated on the obstack.
This patch fixes the problem. This was reported using ASAN, but I
reproduced it with valgrind and verified that this fixes the problem.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33435
Diffstat (limited to 'gdb/python/py-block.c')
0 files changed, 0 insertions, 0 deletions