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| author | Alan Modra <amodra@gmail.com> | 2017-10-05 17:32:18 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-10-05 17:43:34 +1030 |
| commit | 9c0f3d3f2017829ffd908c9893b85094985c3b58 (patch) | |
| tree | 5923acc679c5289d96b9e10c2feec203eb808c57 /config | |
| parent | c91933e9e33654c7b8973cb449b93f5152afcbcb (diff) | |
| download | gdb-9c0f3d3f2017829ffd908c9893b85094985c3b58.zip gdb-9c0f3d3f2017829ffd908c9893b85094985c3b58.tar.gz gdb-9c0f3d3f2017829ffd908c9893b85094985c3b58.tar.bz2 | |
PR22239 - invalid memory read in display_debug_frames
Pointer comparisons have traps for the unwary. After adding a large
unknown value to "start", the test "start < end" depends on where
"start" is originally in memory.
PR 22239
* dwarf.c (read_cie): Don't compare "start" and "end" pointers
after adding a possibly wild length to "start", compare the length
to the difference of the pointers instead. Remove now redundant
"negative" length test.
Diffstat (limited to 'config')
0 files changed, 0 insertions, 0 deletions