Signed-off-by: Thomas Bettler <thomas.bettler@gmail.com>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
[PM: merge fuzz, subject tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit c375ae5f)

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit 25f311a0)

*len is the length of the destination buffer, but program->blks is
probably not anywhere near that long.  It's already been checked above
that BPF_PGM_SIZE(program) is less than or equal to *len, so that's
the correct value to use here to avoid either reading or writing too
much.

I noticed this because tests/11-basic-basic_errors started failing on
musl after e797591b ("all: add seccomp_precompute() functionality").

Signed-off-by: Alyssa Ross <hi@alyssa.is>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit e8dbc6b5)

This was spotted when trying to upgrade the libseccomp fedora package to
version 2.6.0 in fedora rawhide. It comes with gcc 15 and LTO enabled by
default. When running the test 61-sim-transactions we get plenty of such
errors in valgrind:

==265507== Use of uninitialised value of size 8
==265507==    at 0x4096AD: _hsh_add (gen_bpf.c:599)
==265507==    by 0x40A557: UnknownInlinedFun (gen_bpf.c:2016)
==265507==    by 0x40A557: gen_bpf_generate (gen_bpf.c:2341)
==265507==    by 0x400CDE: UnknownInlinedFun (db.c:2685)
==265507==    by 0x400CDE: UnknownInlinedFun (db.c:2682)
==265507==    by 0x400CDE: UnknownInlinedFun (api.c:756)
==265507==    by 0x400CDE: UnknownInlinedFun (util.c:162)
==265507==    by 0x400CDE: UnknownInlinedFun (util.c:153)
==265507==    by 0x400CDE: main (61-sim-transactions.c:128)
==265507==  Uninitialised value was created by a stack allocation
==265507==    at 0x409590: _hsh_add (gen_bpf.c:573)

Investigating this a bit, it seems that because of LTO the MurMur hash
implementation is being inlined in _hsh_add. The two buffers data and
blocks to point at the same underlying data, but via incompatible type,
which is a strict aliasing violation. Instead, remove the getblock32
function and inline the copy with memcpy.

This is reproducible on a "fedora:rawhide" container (gcc 15) and using:
export CFLAGS='-O2 -flto=auto -ffat-lto-objects -g'

Signed-off-by: Romain Geissler <romain.geissler@amadeus.com>
Reviewed-by: Sam James <sam@gentoo.org>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
[PM: subject line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit 614530bc)

Document the fact that both seccomp_transaction_start and
seccomp_transaction_commit can return -EINVAL when ctx is invalid.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Reviewed-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit 600b1685)

We can't reliably run the bpf-sim-fuzz tests on tests which manipulate
the filters arch/ABIs unless the filter is safe to run on all arch/ABIs,
which is more or less impossible.  Remove the bpf-sim-fuzz test section
in test #62 to work around this, just as we do with the other similar
tests.

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
(cherry picked from commit 7db46d72)

Signed-off-by: Paul Moore <paul@paul-moore.com>

Force the creation of the test log and stats files before running the
test, this prevents a race condition where the framework attempts to
output the test results before the test has had a chance to run.

Quiet a grep command in the framework that was resulting in unwanted
output in the test terminal.

Signed-off-by: Paul Moore <paul@paul-moore.com>
(imported from commit 0ab53f95)
Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: Paul Moore <paul@paul-moore.com>

Two small tweaks:
- Group the GH Action badges together in README.md
- Fix some minor list formatting in CHANGELOG

Signed-off-by: Paul Moore <paul@paul-moore.com>

As described in the blog post below, we need to migrate to
actions/upload-artifact@v4.

https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions



Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: Paul Moore <paul@paul-moore.com>

It is important to note that there are not changes to the syscall table
with this update, it simply updates the header to v6.13 from v6.13-rc3.

Signed-off-by: Paul Moore <paul@paul-moore.com>

Cleanup all of our regression testing artifacts to keep
'make distcheck' happy.

Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: Paul Moore <paul@paul-moore.com>

Remove the Travis CI option for the Coverity checks.  We can investigate
add Coverity to the GitHub Actions in the future, but right now just
stick to manual submissions.

Signed-off-by: Paul Moore <paul@paul-moore.com>

The package python3-distutils has been deprecated, and we no longer
depend upon it.  Don't install it during Github Actions automated tests.

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Add a test to verify the logic at the end of db_col_transaction_commit()
properly copies and releases the snapshots from the filter when the
filter length doesn't match the snapshot length.

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
[PM: subj tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

While libseccomp has internally has transaction support for some time
now, it hasn't been accessible to callers through the libseccomp API.
This patch adds a transaction API as well as supporting documentation
and a new unit regression test.

  int seccomp_transaction_start(const scmp_filter_ctx ctx)
  int seccomp_transaction_commit(const scmp_filter_ctx ctx)
  void seccomp_transaction_reject(const scmp_filter_ctx ctx)

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Fix an off-by-one error that was causing us to leak a db_filter struct
at transaction commit time when we removed an arch/ABI in a transaction.

Reported-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

It turns out we don't properly handle transaction aborts as we should,
this likely broke when we implemented the shadow snapshots but as the
transaction concept was not exported via the API, and callers most
likely abandoned the filter on error this went unnoticed.

This patch ensures that transaction aborts are handled properly by
correctly managing the filter's transaction stack.

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Due to the addition of fstat & newfstatat to the LoongArch syscall ABI,
tests 38 and 55 have to be updated for the changed syscall numbers.

As for the PNR additions, normally they are allocated alphabetically for
the syscalls introduced between updates of the table, but in the v2.5
release branch -10245 is already assigned to map_shadow_stack in
commit 53267af3 ("all: update the syscall table for Linux v6.7-rc3").
While the map_shadow_stack syscall is in fact available across all
architectures, for consistency with v2.5.5 and later it is kept in the
same position in this update.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Paul Moore <paul@paul-moore.com>

The aarch64, loongarch64 and riscv64 architectures have their syscall
table sources changed to scripts/syscall.tbl, from the original
inclusion of asm-generic/unistd.h. Make the script recognize the new
format for these architectures.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Paul Moore <paul@paul-moore.com>

Apart from de-duplication of logic, this refactor is also going to help
syncing to the Linux 6.11+ definitions, where all architectures are
converted to source their syscall definitions from syscall.tbl files.

The change is tested on Linux 6.2 sources to not affect the generated
syscalls.csv apart from timestamp changes.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Paul Moore <paul@paul-moore.com>

We have maintainer docs regarding our release process, but nothing for
normal users.  Let's fix that with a small section in our README.md.

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

The goal of test 29 is to test bogus negative syscall numbers,
unfortunately it appears our choice of syscalls was not bogus on all
the architectures we support.  This commit fixes that by picking a
syscall number well outside the pseudo-syscall/PNR range and removing
the sysmips(2) syscall from the test so as to not cause problems
at a later date.

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

See https://github.com/seccomp/libseccomp/pull/425

.

Punning sys_data_b between uint32_t* and struct* seccomp_data isn't legal,
use memcpy to fix the testsuite with Clang 17.

Modern compilers recognise this idiom and optimise it out anyway.

Signed-off-by: Sam James <sam@gentoo.org>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

In ISO C, at least one argument should be specified for
the "..." argument of a function-like macro.

Signed-off-by: Cheng Qiao <admin@cismon.net>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

CI / Codespell found 2 typos and blocks PR merging. This commit fixes
them.

Signed-off-by: Heran Yang <heran55@126.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

The kernel returns EINVAL when this flag is passed to seccomp
without the new listener flag so we should pass the along as well.

Reference on where the check happens in the kernel:
https://github.com/torvalds/linux/blob/aea6bf908d730b01bd264a8821159db9463c111c/kernel/seccomp.c#L1926-L1932



Signed-off-by: Ali Polatel <alip@chesswob.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Signed-off-by: Jingyun Hua <huajingyun@loongson.cn>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

which is not a standard POSIX utility, and indeed, each of these test scripts
uses #!/bin/bash as its shebang, so we can use `type -P` which has the same
behaviour as `which` for free.

(If the tests used POSIX shell, we could do `command -v`, its only caveat is
that it'll pick up functions in the user's shell, which doesn't matter 99% of
the time anyway.)

Distributions like Debian [0] and Gentoo [1] are looking to remove `which`
from their base set of packages.

[0] https://lwn.net/Articles/874049/
[1] https://bugs.gentoo.org/646588



Signed-off-by: Sam James <sam@gentoo.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Running make distcheck resulted in the following errors:
	ERROR: files left in build directory after distclean:
	./src/python/seccomp.egg-info/SOURCES.txt
	./src/python/seccomp.egg-info/PKG-INFO
	./src/python/seccomp.egg-info/top_level.txt
	./src/python/seccomp.egg-info/dependency_links.txt
	./src/python/dist/seccomp-2.5.4-py3.11-linux-x86_64.egg
	make[1]: *** [Makefile:812: distcleancheck] Error 1

Delete the seccomp.egg-info and dist directories in the clean-local make
target.

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Fixes: dd5c9c24 ("arch: Add 32-bit Motorola 68000 support")
Fixes: c12945db ("arch: Add SuperH 32-bit support")
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Acked-by: Tom Hromatka <tom.hromatka@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

29-sim-pseudo_syscall.c was using `-11001` syscall.
Corrected it to `-10001`.

Signed-off-by: Mayank Mrinal <mayank.mrinal@sony.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

`seccomp_arch_remove()` for `SCMP_ARCH_SH` is missing, so add it.

Signed-off-by: Manabu Sugimoto <Manabu.Sugimoto@sony.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

It appears that '--indent-preprocessor' and
'--max-instatement-indent' are no longer supported command line
options, remove them.

Minor tweak to db_col_init() to appease astyle, no functional
changes.

Signed-off-by: Paul Moore <paul@paul-moore.com>