Re: git: 9cabef3d146e - main - ldd: use direct exec mode unconditionally
- Reply: Konstantin Belousov : "Re: git: 9cabef3d146e - main - ldd: use direct exec mode unconditionally"
- Reply: Alexey Dokuchaev : "Re: git: 9cabef3d146e - main - ldd: use direct exec mode unconditionally"
- In reply to: Konstantin Belousov : "git: 9cabef3d146e - main - ldd: use direct exec mode unconditionally"
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Date: Fri, 21 Oct 2022 12:18:04 UTC
On 6 Oct 2022, at 17:50, Konstantin Belousov wrote: > The branch main has been updated by kib: > > URL: > https://cgit.FreeBSD.org/src/commit/?id=9cabef3d146e9a844813b6bc8952d6cf2e9d45e5 > > commit 9cabef3d146e9a844813b6bc8952d6cf2e9d45e5 > Author: Konstantin Belousov <kib@FreeBSD.org> > AuthorDate: 2022-09-21 13:55:44 +0000 > Commit: Konstantin Belousov <kib@FreeBSD.org> > CommitDate: 2022-10-06 15:50:26 +0000 > > ldd: use direct exec mode unconditionally > > Trying to exec malformed or unusual binary, for instance, a > non-FreeBSD > ABI, or using a non-standard interpreter, might give unexpected > outcome. > > Reported by: The UK's National Cyber Security Centre (NCSC) > Reviewed by: emaste, markj, philip > Discussed with: jhb > Sponsored by: The FreeBSD Foundation > admbug: 991 > PR: 127276, 175339, 231926 > MFC after: 1 week > Differential revision: https://reviews.freebsd.org/D36650 > This appears to break things for armv7 (running on aarch64). This manifests while building pfsense (for 3100 / armv7), which we do on an aarch64 vm (to avoid having to deal with qemu, and because it’s faster). During that build a couple ports fail to build, including databases/sqlite3. It fails running `/usr/bin/ldd -a "/wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sqlite3" "/wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/lib/libsqlite3.so”`, which produces: ld-elf.so.1: /wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sqlite3: mmap of entire address space failed: Cannot allocate memory /wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sqlite3: exit status 1 That fails doing the `mapbase = mmap(base_addr, mapsize, PROT_NONE, base_flags, -1, 0);` call in rtld-elf’s map_object():217. That call does `mmap(0x10000, 0x1dc000, PROT_NONE, 0x6010, -1, 0) => 0xffffffff`. With this patch reverted we can build successfully. Best regards, Kristof