| commit | d224c7d8d8b49daab54a977a4f2217423d3d12a0 | |
| author | Jakub Jelinek <jakub@redhat.com> | |
| Wed, 22 May 2024 07:12:28 +0000 (22 09:12 +0200) | ||
| committer | Jakub Jelinek <jakub@redhat.com> | |
| Wed, 22 May 2024 07:19:00 +0000 (22 09:19 +0200) | ||
| tree | 5a6f46ba7136b0ba4907099c004bfba27747f5f9 | treesnapshot (tar.gz zip) |
| parent | 1ad5c9d524d8fa99773045e75da04ae958012085 | commitdiff |
ubsan: Use right address space for MEM_REF created for bool/enum sanitization [PR115172]
The following testcase is miscompiled, because -fsanitize=bool,enum
creates a MEM_REF without propagating there address space qualifiers,
so what should be normally loaded using say %gs:/%fs: segment prefix
isn't. Together with asan it then causes that load to be sanitized.
2024-05-22 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/115172
* ubsan.cc (instrument_bool_enum_load): If rhs is not in generic
address space, use qualified version of utype with the right
address space. Formatting fix.
* gcc.dg/asan/pr115172.c: New test.
(cherry picked from commit d3c506eff54fcbac389a529c2e98da108a410b7f)
The following testcase is miscompiled, because -fsanitize=bool,enum
creates a MEM_REF without propagating there address space qualifiers,
so what should be normally loaded using say %gs:/%fs: segment prefix
isn't. Together with asan it then causes that load to be sanitized.
2024-05-22 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/115172
* ubsan.cc (instrument_bool_enum_load): If rhs is not in generic
address space, use qualified version of utype with the right
address space. Formatting fix.
* gcc.dg/asan/pr115172.c: New test.
(cherry picked from commit d3c506eff54fcbac389a529c2e98da108a410b7f)
| gcc/testsuite/gcc.dg/asan/pr115172.c | [new file with mode: 0644] | blob |
| gcc/ubsan.cc | diffblobblamehistory |