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| author | Alan Modra <amodra@gmail.com> | 2019-04-01 12:00:09 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-04-01 13:35:15 +1030 |
| commit | f7043f6281dd27b19393b3d18daa227acd9459c6 (patch) | |
| tree | 4fb86e9e1f758fb6e602844613354e61f9b223eb /gprof | |
| parent | 91fc2ba707780d150309259571b12c73e92af5d0 (diff) | |
| download | gdb-f7043f6281dd27b19393b3d18daa227acd9459c6.zip gdb-f7043f6281dd27b19393b3d18daa227acd9459c6.tar.gz gdb-f7043f6281dd27b19393b3d18daa227acd9459c6.tar.bz2 | |
PR24402, global buffer overflow in symtab_finalize
PR 24402
* symtab.c (symtab_finalize): Init prev_addr to one less than
first symbol address, not one more. Correct test for symbols
with leading underscores.
Diffstat (limited to 'gprof')
| -rw-r--r-- | gprof/ChangeLog | 7 | ||||
| -rw-r--r-- | gprof/symtab.c | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gprof/ChangeLog b/gprof/ChangeLog index a1da7e5..9815b15 100644 --- a/gprof/ChangeLog +++ b/gprof/ChangeLog @@ -1,3 +1,10 @@ +2019-04-01 Alan Modra <amodra@gmail.com> + + PR 24402 + * symtab.c (symtab_finalize): Init prev_addr to one less than + first symbol address, not one more. Correct test for symbols + with leading underscores. + 2019-01-21 Nick Clifton <nickc@redhat.com> * po/tr.po: Updated Turkish translation. diff --git a/gprof/symtab.c b/gprof/symtab.c index 740168c..70eb415 100644 --- a/gprof/symtab.c +++ b/gprof/symtab.c @@ -89,7 +89,7 @@ symtab_finalize (Sym_Table *tab) /* Remove duplicate entries to speed-up later processing and set end_addr if its not set yet. */ - prev_addr = tab->base[0].addr + 1; + prev_addr = tab->base[0].addr - 1; for (src = dst = tab->base; src < tab->limit; ++src) { @@ -107,7 +107,7 @@ symtab_finalize (Sym_Table *tab) && ((src->is_func && !dst[-1].is_func) || ((src->is_func == dst[-1].is_func) && ((src->name[0] != '_' && dst[-1].name[0] == '_') - || (src->name[0] + || (src->name[0] == '_' && dst[-1].name[0] == '_' && src->name[1] != '_' && dst[-1].name[1] == '_')))))) { |