[binutils-gdb] oss-fuzz: vms-alpha segfault in image_write_section
Alan Modra via Binutils-cvs <[email protected]> Sat, 13 Jun 2026 06:49:27 +0000 (GMT)
| Newsgroups | gmane.comp.gnu.binutils.cvs |
|---|---|
| Message-ID | <[email protected]> |
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=95451ea43a7e2e4aa806ee7405e9167b2ee653c1 commit 95451ea43a7e2e4aa806ee7405e9167b2ee653c1 Author: Alan Modra <[email protected]> Date: Sat Jun 13 10:27:22 2026 +0930 oss-fuzz: vms-alpha segfault in image_write_section Yet another case where a fuzzed object file triggers a crash in the vms-alpha support. * vms-alpha.c (image_write_section): Don't segfault on NULL image_section. Diff: --- bfd/vms-alpha.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c index 8454ab6ebdc..24b05f90bea 100644 --- a/bfd/vms-alpha.c +++ b/bfd/vms-alpha.c @@ -1603,7 +1603,8 @@ image_write_section (bfd *abfd) { asection *sec = PRIV (image_section); - if ((sec->flags & SEC_IN_MEMORY) != 0 && sec->contents == NULL) + if (sec == NULL + || ((sec->flags & SEC_IN_MEMORY) != 0 && sec->contents == NULL)) return NULL; return sec; }