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| author | Nick Clifton <nickc@redhat.com> | 2023-10-09 15:14:52 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2023-10-09 15:14:52 +0100 |
| commit | e7c3fa04b6c54aae88675a7dcd9c76b322ec2171 (patch) | |
| tree | c056c64b08cd91da184b1014cb29cce1a10cb546 | |
| parent | 2f349e7d2ac51d29994db57498accd38f893f200 (diff) | |
| download | gdb-e7c3fa04b6c54aae88675a7dcd9c76b322ec2171.zip gdb-e7c3fa04b6c54aae88675a7dcd9c76b322ec2171.tar.gz gdb-e7c3fa04b6c54aae88675a7dcd9c76b322ec2171.tar.bz2 | |
Fix: A potential bug of null pointer dereference
PR 30949
* elflink.c (elf_gc_mark_debug_section): Check for bfd_section_from_elf_index returning a NULL pointer.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elflink.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index bf70a1d..da28772 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2023-10-09 Nick Clifton <nickc@redhat.com> + + PR 30949 + * elflink.c (elf_gc_mark_debug_section): Check for + bfd_section_from_elf_index returning a NULL pointer. + 2023-10-06 Nick Clifton <nickc@redhat.com> PR 30940 diff --git a/bfd/elflink.c b/bfd/elflink.c index ca16214..99f4cdd 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -13710,7 +13710,7 @@ elf_gc_mark_debug_section (asection *sec ATTRIBUTE_UNUSED, /* Return the local debug definition section. */ asection *isec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); - if ((isec->flags & SEC_DEBUGGING) != 0) + if (isec != NULL && (isec->flags & SEC_DEBUGGING) != 0) return isec; } |