diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2026-07-15 14:58:32 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2026-08-06 12:52:28 +0000 |
| commit | 984a3970b16fd603bba7554b4a4c7449550bd5cb (patch) | |
| tree | 1515fa48d4f4c70f21c353dbb30845bfd87ac5a7 | |
| parent | 7eb4c67be503176d4824d8eaccd70ae942569e54 (diff) | |
stand: Recognize SHT_INIT_ARRAY sections as constructor sections
Pass such a section to the kernel using modinfo, otherwise link_elf.c
won't execute constructors for the file. This is required for KASAN,
otherwise redzones for global buffers are not poisoned during boot.
Reviewed by: kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D58244
(cherry picked from commit 4b0ae7e001a97e5449835bb8a2e6c2e6f53aac39)
| -rw-r--r-- | stand/common/load_elf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/stand/common/load_elf.c b/stand/common/load_elf.c index b9f55a21e403..1b5f1daded09 100644 --- a/stand/common/load_elf.c +++ b/stand/common/load_elf.c @@ -725,7 +725,8 @@ __elfN(loadimage)(struct preloaded_file *fp, elf_file_t ef, uint64_t off) if (shstr) { for (i = 0; i < ehdr->e_shnum; i++) { if (strcmp(shstr + shdr[i].sh_name, - ".ctors") != 0) + ".ctors") != 0 && + shdr[i].sh_type != SHT_INIT_ARRAY) continue; ctors = shdr[i].sh_addr; file_addmetadata(fp, MODINFOMD_CTORS_ADDR, |