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| author | Nick Alcock <nick.alcock@oracle.com> | 2021-03-25 16:32:46 +0000 |
|---|---|---|
| committer | Nick Alcock <nick.alcock@oracle.com> | 2021-03-25 16:32:49 +0000 |
| commit | 0bd65ce30a869559251a34da105fbe45df5a85b3 (patch) | |
| tree | 6f4d610cb1ea5dafff6200641bdea29f0c961a98 /libctf/ctf-link.c | |
| parent | 5226ef61131c1dbb58bcf4ff10ece4312690bc82 (diff) | |
| download | gdb-0bd65ce30a869559251a34da105fbe45df5a85b3.zip gdb-0bd65ce30a869559251a34da105fbe45df5a85b3.tar.gz gdb-0bd65ce30a869559251a34da105fbe45df5a85b3.tar.bz2 | |
libctf: don't dereference out-of-bounds locations in the qualifier hashtab
isqualifier, which is used by ctf_lookup_by_name to figure out if a
given word in a type name is a qualifier, takes the address of a
possibly out-of-bounds location before checking its bounds.
In any reasonable compiler this will just lead to a harmless address
computation that is then discarded if out-of-bounds, but it's still
undefined behaviour and the sanitizer rightly complains.
libctf/ChangeLog
2021-03-25 Nick Alcock <nick.alcock@oracle.com>
PR libctf/27628
* ctf-lookup.c (isqualifier): Don't dereference out-of-bounds
qhash values.
Diffstat (limited to 'libctf/ctf-link.c')
0 files changed, 0 insertions, 0 deletions