diff options
| author | Nick Clifton <nickc@redhat.com> | 2022-12-05 11:11:44 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2022-12-05 11:11:44 +0000 |
| commit | 942fa4fb32738ecbb447546d54f1e5f0312d2ed4 (patch) | |
| tree | f3e1e8e4cb2ed4644df8fbe5032fdd99bac8d834 /bfd | |
| parent | ecfbeec8d0a7687a6464caa088b2283b30a25d7e (diff) | |
| download | gdb-942fa4fb32738ecbb447546d54f1e5f0312d2ed4.zip gdb-942fa4fb32738ecbb447546d54f1e5f0312d2ed4.tar.gz gdb-942fa4fb32738ecbb447546d54f1e5f0312d2ed4.tar.bz2 | |
Fix an illegal memory access when parsing a corrupt VMS Alpha file.
PR 29848
* vms-alpha.c (parse_module): Fix potential out of bounds memory
access.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/vms-alpha.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index eee5d42..ee8eaf0 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2022-12-05 Nick Clifton <nickc@redhat.com> + + PR 29848 + * vms-alpha.c (parse_module): Fix potential out of bounds memory + access. + 2022-12-01 Nick Clifton <nickc@redhat.com> PR 25202 diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c index 9531953..c0eb5bc 100644 --- a/bfd/vms-alpha.c +++ b/bfd/vms-alpha.c @@ -4366,7 +4366,7 @@ parse_module (bfd *abfd, struct module *module, unsigned char *ptr, return false; module->line_table = curr_line; - while (length == -1 || ptr < maxptr) + while (length == -1 || (ptr + 3) < maxptr) { /* The first byte is not counted in the recorded length. */ int rec_length = bfd_getl16 (ptr) + 1; |