strv_split_full() returns the number of parsed entries, which was
assigned to r, the variable that also holds the run's exit status.
With TESTFUNCS set, a passing run of only void tests then exited with
the entry count (e.g. 1) instead of EXIT_SUCCESS. Use a separate
variable for the split result.
Before:
$ env TESTFUNCS=test_copy_tree meson test -C build -v test-copy
1/1 test - systemd:test-copy FAIL 0.01s exit status 1
$ env TESTFUNCS=test_copy_tree:test_copy_file_fd meson test -C build -v test-copy
1/1 test - systemd:test-copy FAIL 0.01s exit status 2
Now:
$ env TESTFUNCS=test_copy_tree:test_copy_file_fd meson test -C build -v test-copy
1/1 test - systemd:test-copy OK 0.01s
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: Paul Meyer <katexochen0@gmail.com>
kbd has a switched 'ara' console layout, but we don't have a
corresponding line in kbd-model-map. When converting 'us,ara' to a
legacy layout we wind up with us-acentos, which is definitely
wrong. This will fix it.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
The test is flaky and times out lately in ppc64el CI runners:
exec-dynamicuser-statedir.service: Control group is empty.
exec-dynamicuser-statedir.service: User lookup succeeded: uid=65325 gid=65325
Test timeout when testing exec-dynamicuser-statedir.service
Bump the timeout also when in a CI, as they are often over subscribed
Fixes the following build error:
```
ninja: job failed: cc (snip) -o test-bpf-restrict-fsaccess.p/src_test_test-bpf-restrict-fsaccess.c.o -c ../src/test/test-bpf-restrict-fsaccess.c
In file included from ../src/test/test-bpf-restrict-fsaccess.c:96:
src/bpf/restrict-fsaccess-skel.h:19:10: fatal error: restrict-fsaccess.bpf.skel.h: No such file or directory
19 | #include "restrict-fsaccess.bpf.skel.h" /* IWYU pragma: export */
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
ninja: subcommand failed
```
Follow-up for e6fc73350f.
The quota test takes ~30 seconds on my poor laptop, and randomly fails
with timeout. Let's extend the timeout and skip the test case when slow
tests are disabled.
On alpha '.set' is overridden to mean something else, so the build
fails:
/tmp/ccckEb4p.s:11442: Warning: Tried to .set unrecognized mode `sd_dlopen:[{"feature":"lzma","description":"Support lzma compression in journal and coredump files","priority":"suggested","soname":["liblzma.so.5"]}]'
/tmp/ccckEb4p.s:11442: Error: junk at end of line, first unrecognized character is `,'
Switch to '.equ' which seems to do the job just as well, and builds
on alpha too.
Follow-up for 56a7febca7
systemd-resolved has 2 contradictory ELF notes for libcrypto:
```
$ systemd-analyze dlopen-metadata /usr/lib/systemd/systemd-resolved
FEATURE DESCRIPTION SONAME PRIORITY
libcrypto Support for cryptographic operations libcrypto.so.3 recommended
idn Support for internationalized domain names libidn2.so.0 recommended
libcrypto Support for cryptographic operations libcrypto.so.3 required
libssl Support for TLS libssl.so.3 required
```
In order to have a single note, condition its priority based on whether
DNS-over-TLS is enabled.
A bind mount inherits the mount flags of the file system the source
directory resides on. For root=bind: the source typically lives below
/run/ (e.g. a freshly unpacked tar image in /run/machines/), which is
mounted nosuid,nodev, so those flags propagated to /sysroot and broke
suid binaries (e.g. sudo) and device nodes on the booted system.
Default bind root mounts to dev,suid,exec instead, unless the user
overrides this via rootflags=.
Fixes: https://github.com/systemd/systemd/issues/41352
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
keyfile-erase only erases a key file explicitly configured in the third
field of crypttab. Key files automatically discovered in
/etc/cryptsetup-keys.d/ and /run/cryptsetup-keys.d/ are considered shared
resources not owned by an individual volume, and are never erased. Make
this explicit in the documentation and add a code comment clarifying the
intent.
Fixes: https://github.com/systemd/systemd/issues/41127
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
Since this was introduced I constantly find myself waiting for VMs to
shut down at the end of a test. This not only happens with mkosi
integration tests, but with other VM-based tests like for example
autopkgtest. In this example, this dracut test suite runtime is tripled
due to the artificial delay:
```
[ 5.813234] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 5.814635] systemd-shutdown[1]: Delaying shutdown for 9s, in order to reach minimum uptime of 15s.
[ 8.816855] systemd-shutdown[1]: Delaying shutdown for 6s, in order to reach minimum uptime of 15s.
[ 11.819747] systemd-shutdown[1]: Delaying shutdown for 3s, in order to reach minimum uptime of 15s.
[ 14.822660] systemd-shutdown[1]: Delaying shutdown for 601ms, in order to reach minimum uptime of 15s.
[ 15.427777] systemd-shutdown[1]: Powering off.
[ 15.429681] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 15.433620] ACPI: PM: Preparing to enter system sleep state S5
[ 15.435148] reboot: Power down
TEST: root filesystem on a ext4 filesystem with systemd and extensions [OK]
autopkgtest [19:39:12]: test 46-systemd-sysext: -----------------------]
autopkgtest [19:39:13]: test 46-systemd-sysext: - - - - - - - - - - results - - - - - - - - - -
46-systemd-sysext PASS
```
Contrary to what the comment claimed, the scrollback of a VM is _not_
cleared, EDK2 just prints many pages, and one can just scroll up (a
lot).
Do not delay by default on VMs. Move the check so that in both
containers and VMs users can override and force a delay with the env
var.
Follow-up for 0874eea302
$ mkdir /var/tmp/files
$ touch /var/tmp/files/a
$ mkdir /var/tmp/conf
$ cat >>/var/tmp/conf/esp.conf
[Partition]
Type=esp
Format=vfat
CopyFiles=/var/tmp/files:/
$ truncate /var/tmp/disk -s 300M
$ sudo systemd-repart --dry-run=no --empty=require --definitions=/var/tmp/conf /var/tmp/disk
...
Populating vfat filesystem.
Failed to copy '...' to '/run/systemd/mount-root/': Operation not permitted
(sd-copy) failed with exit status 1.
The issue is that if there's a file owned by non-root and we try to copy
it into a newly-created DOS partition, fchown fails:
fchown(11</run/systemd/mount-root/...>, 1000, 1000) = -1 EPERM (Operation not permitted)
We want to ignore file ownership in such cases, so pass our own UID/GID
to copy_tree_at(), which turns the fchown into a noop and let's the
operation pass through.
Fixes#38863.
I was running repart in a VM, and if failed because mkfs.vfat was
not available. But if fails quite late in the process, possibly wasting
quite a bit of work. So add a check that catches some obvious cases
where repart would fail.
The condition of whether we have the root directory is complex,
determined in part by partition_target_prepare(). I didn't think it
was worth it to recreate the full logic in the check, so in some cases
it'll not miss cases. But that's still better than having no check ;)
Currently almost all the dlopens happen in libbasic or libshared code,
so the ELF dlopen notes all end up in libsystemd-shared. Many
distributions split this library and various binaries in separate
packages, and the library ends up with soft-dependencies, even though
many binaries are either completely useless or do not work at all with
the dlopen dependency. This also makes it impossible to know which
executable uses which dlopen dependency without inspecting the source
code.
If someone only wants to add the soft dependencies from libshared they
can just avoid parsing the executable binaries. By design the code in
libbasic/libshared still does the stamping too, at lower priorities, so
that libsystemd-shared will always list all the optional dependencies,
and if one wants to build a minimal system by default, they can just
parse libsystemd-shared dlopen notes, and ignore the individual
executables. But for many distribution the current setup is insufficient
and requires adding a ton of manual library dependencies, as many
executables become effectively broken or useless without the dlopen
dependencies installed (eg: resolved fails to start without libssl,
repart can do basically nothing without blkid, etc).
Add a new set of DLOPEN_<LIB> macros that wrap the dlopen_lib and also
pull in the ELF note voodoo, so that the callers get their ELF binaries
stamped too. Convert a bunch of callers to use the macro, and use
`required` dependencies for the callers that do not work without the
dlopen library being available.
The one caveat is that, in order to avoid duplicating the exact same
note in a binary due to multiple call sites, some `asm` voodoo is done
instead of the previous bare-C section-creating macro. The drawback of
this approach is that if `--gc-sections` is used to link the binary (as
we do), then binutils >= 2.36 is required for the `SHF_GNU_RETAIN` flag.
This effectively cuts off CentOS 9, so what I did here is adding an
override in meson to detect missing support, and drop `SHF_GNU_RETAIN`.
The build works, but on CentOS 9 there's no dlopen ELF notes anymore.
Given it's just that version, and it goes EOL next year, that seems ok
to me. The alternative is to drop the usage of `--gc-sections` on CentOS
9, or to accept duplicated notes everywhere, and both seem worse.
End result:
```
$ readelf --notes build/systemd-executor
Displaying notes found in: .note.gnu.property
Owner Data size Description
GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0
Properties: x86 ISA needed: x86-64-baseline
Displaying notes found in: .note.gnu.build-id
Owner Data size Description
GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring)
Build ID: 8a0c3db54adb79ae54e1432255011aa4ab583742
Displaying notes found in: .note.ABI-tag
Owner Data size Description
GNU 0x00000010 NT_GNU_ABI_TAG (ABI version tag)
OS: Linux, ABI: 3.2.0
Displaying notes found in: .note.dlopen
Owner Data size Description
FDO 0x0000006b FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"pam","description":"Support for LinuxPAM","priority":"recommended","soname":["libpam.so.0"]}]
FDO 0x0000007c FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"seccomp","description":"Support for Seccomp Sandboxes","priority":"recommended","soname":["libseccomp.so.2"]}]
FDO 0x00000090 FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"bpf","description":"Support firewalling and sandboxing with BPF","priority":"recommended","soname":["libbpf.so.1","libbpf.so.0"]}]
FDO 0x000000a0 FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"cryptsetup","description":"Support for disk encryption, integrity, and authentication","priority":"recommended","soname":["libcryptsetup.so.12"]}]
FDO 0x00000078 FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"mount","description":"Support for mount enumeration","priority":"recommended","soname":["libmount.so.1"]}]
$ readelf --notes build/systemd
Displaying notes found in: .note.gnu.property
Owner Data size Description
GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0
Properties: x86 ISA needed: x86-64-baseline
Displaying notes found in: .note.gnu.build-id
Owner Data size Description
GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring)
Build ID: dcd4568842e32da3e71be27db3def51c6b459994
Displaying notes found in: .note.ABI-tag
Owner Data size Description
GNU 0x00000010 NT_GNU_ABI_TAG (ABI version tag)
OS: Linux, ABI: 3.2.0
Displaying notes found in: .note.dlopen
Owner Data size Description
FDO 0x00000075 FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"mount","description":"Support for mount enumeration","priority":"required","soname":["libmount.so.1"]}]
FDO 0x00000072 FDO_DLOPEN_METADATA
Dlopen Metadata: [{"feature":"selinux","description":"Support for SELinux","priority":"recommended","soname":["libselinux.so.1"]}]
```
2026-05-29T18:00:43.7496388Z ../src/core/dynamic-user.c: In function ‘dynamic_user_realize’:
2026-05-29T18:00:43.7497098Z ../src/core/dynamic-user.c:436:29: error: ‘new_uid’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T18:00:43.7497758Z 436 | num = new_uid;
2026-05-29T18:00:43.7498026Z | ~~~~^~~~~~~~~
2026-05-29T18:00:43.7498465Z ../src/core/dynamic-user.c:361:23: note: ‘new_uid’ was declared here
2026-05-29T18:00:43.7498802Z 361 | uid_t new_uid;
2026-05-29T18:00:43.7499039Z | ^~~~~~~
2026-05-29T18:00:43.7499315Z In file included from ../src/core/dynamic-user.c:23:
2026-05-29T18:00:43.7499651Z In function ‘dynamic_user_push’,
2026-05-29T18:00:43.7500063Z inlined from ‘dynamic_user_realize’ at ../src/core/dynamic-user.c:453:13:
2026-05-29T18:00:43.7501021Z ../src/basic/socket-util.h:131:63: error: ‘new_uid_lock_fd’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T18:00:43.7501897Z 131 | #define send_one_fd_iov(transport_fd, fd, iov, iovlen, flags) send_one_fd_iov_sa(transport_fd, fd, iov, iovlen, NULL, 0, flags)
2026-05-29T18:00:43.7502530Z | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2026-05-29T18:00:43.7503145Z ../src/core/dynamic-user.c:320:16: note: in expansion of macro ‘send_one_fd_iov’
2026-05-29T18:00:43.7503647Z 320 | return send_one_fd_iov(d->storage_socket[1], lock_fd, &iov, 1, MSG_DONTWAIT);
2026-05-29T18:00:43.7504027Z | ^~~~~~~~~~~~~~~
2026-05-29T18:00:43.7504397Z ../src/core/dynamic-user.c: In function ‘dynamic_user_realize’:
2026-05-29T18:00:43.7504888Z ../src/core/dynamic-user.c:360:21: note: ‘new_uid_lock_fd’ was declared here
2026-05-29T18:00:43.7505256Z 360 | int new_uid_lock_fd;
2026-05-29T18:00:43.7505511Z | ^~~~~~~~~~~~~~~
2026-05-29T18:00:43.7505882Z ../src/core/dynamic-user.c: In function ‘dynamic_user_current’:
2026-05-29T18:00:43.7506461Z ../src/core/dynamic-user.c:468:15: error: ‘uid’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T18:00:43.7506895Z 468 | uid_t uid;
2026-05-29T18:00:43.7507096Z | ^~~
2026-05-29T18:26:14.2420944Z In function ‘dynamic_user_push’,
2026-05-29T18:26:14.2421730Z inlined from ‘dynamic_user_realize’ at ../src/core/dynamic-user.c:453:13:
2026-05-29T18:26:14.2435240Z ../src/basic/socket-util.h:131:63: error: ‘new_uid_lock_fd’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T18:26:14.2440497Z 131 | #define send_one_fd_iov(transport_fd, fd, iov, iovlen, flags) send_one_fd_iov_sa(transport_fd, fd, iov, iovlen, NULL, 0, flags)
2026-05-29T18:26:14.2442511Z | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2026-05-29T18:26:14.2445002Z ../src/core/dynamic-user.c:320:16: note: in expansion of macro ‘send_one_fd_iov’
2026-05-29T18:26:14.2445727Z 320 | return send_one_fd_iov(d->storage_socket[1], lock_fd, &iov, 1, MSG_DONTWAIT);
2026-05-29T18:26:14.2448345Z | ^~~~~~~~~~~~~~~
2026-05-29T18:26:14.2448952Z ../src/core/dynamic-user.c: In function ‘dynamic_user_realize’:
2026-05-29T18:26:14.2451781Z ../src/core/dynamic-user.c:360:21: note: ‘new_uid_lock_fd’ was declared here
2026-05-29T18:26:14.2452287Z 360 | int new_uid_lock_fd;
2026-05-29T18:26:14.2454430Z | ^~~~~~~~~~~~~~~
2026-05-29T18:26:14.2454960Z ../src/core/dynamic-user.c: In function ‘dynamic_user_current’:
2026-05-29T18:26:14.2457632Z ../src/core/dynamic-user.c:468:15: error: ‘uid’ may be used uninitialized [-Werror=maybe-uninitialized]
2026-05-29T18:26:14.2458207Z 468 | uid_t uid;
2026-05-29T18:26:14.2460327Z | ^~~
arm64 hosts support running armv7 (armhf) binaries, so we can
cross compile and run the unit tests without performance issues.
armv7 (armhf) is a primary architecture on Ubuntu, so build
regressions block new version updates, and adding coverage
helps to avoid introducing regressions.
resolved watches networkd state changes and RTNL updates separately. RTNL is
currently processed at SD_EVENT_PRIORITY_IMPORTANT, while networkd state
changes are processed later at SD_EVENT_PRIORITY_IMPORTANT+5.
If both are pending, an RTM_NEWADDR update can make a link relevant for
LLMNR/mDNS scope allocation before resolved has consumed the corresponding
networkd state update. This can let scope recalculation use stale per-link
settings until the networkd event is processed.
Run the networkd monitor source before RTNL by using
SD_EVENT_PRIORITY_IMPORTANT-5. This lets resolved consume current link settings
before reacting to RTNL address updates in the same event loop iteration.
Fixes#42079
Co-developed-by: OpenAI Codex <noreply@openai.com>
When using --console=gui the QEMU window closes immediately when the VM
has stopped, so any console output at shutdown is lost, which makes
debugging difficult. Ensure the VM stays booted for a minimum of 15s.
Switch the executable-owned call sites from the plain dlopen_<lib>()
helpers to the new DLOPEN_<LIB>() macros, so that each binary that loads
an optional library at runtime now carries its own .note.dlopen note
instead of relying solely on libsystemd-shared. Each call site passes a
priority reflecting whether it hard-depends on the library (required) or
degrades gracefully without it (recommended).
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
Since this was introduced I constantly find myself waiting for VMs to
shut down at the end of a test. This not only happens with mkosi integration
tests, but with other VM-based tests like for example autopkgtest. In this
example, this dracut test suite runtime is tripled due to the artificial delay:
[ 5.813234] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 5.814635] systemd-shutdown[1]: Delaying shutdown for 9s, in order to reach minimum uptime of 15s.
[ 8.816855] systemd-shutdown[1]: Delaying shutdown for 6s, in order to reach minimum uptime of 15s.
[ 11.819747] systemd-shutdown[1]: Delaying shutdown for 3s, in order to reach minimum uptime of 15s.
[ 14.822660] systemd-shutdown[1]: Delaying shutdown for 601ms, in order to reach minimum uptime of 15s.
[ 15.427777] systemd-shutdown[1]: Powering off.
[ 15.429681] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 15.433620] ACPI: PM: Preparing to enter system sleep state S5
[ 15.435148] reboot: Power down
TEST: root filesystem on a ext4 filesystem with systemd and extensions [OK]
autopkgtest [19:39:12]: test 46-systemd-sysext: -----------------------]
autopkgtest [19:39:13]: test 46-systemd-sysext: - - - - - - - - - - results - - - - - - - - - -
46-systemd-sysext PASS
Contrary to what the comment claimed, the scrollback of a VM is _not_
cleared, EDK2 just prints many pages, and one can just scroll up (a lot).
Do not delay by default on VMs. Move the check so that in both containers
and VMs users can override and force a delay with the env var.
Follow-up for 0874eea302
This macro emits an SD_ELF_NOTE_DLOPEN note so that calling sites,
and not just libsystemd-shared, get the ELF stamped with the notes
documenting the dependency. Currently most of the dlopen notes end
up in libsystemd-shared, and executables have no way to document
the optional dependencies they need. With this new macro, this
issue can be fixed.
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
If the SD_ELF_NOTE_DLOPEN macro gets used twice in the same binary,
with identical content, it will add two identical notes, which is
wasteful and confusing.
Emit each note into a COMDAT group keyed on its JSON payload, with an
assembler .ifndef guard, so byte-identical notes fold to a single copy
within a translation unit (assembler) and across translation units
(linker). The section is marked SHF_GNU_RETAIN so --gc-sections keeps it,
and uses the portable "%note" section type so it also assembles on
architectures where "@" is the comment character (e.g. 32-bit ARM).
This ensures SD_ELF_NOTE_DLOPEN can be used as many times as needed,
and the result will be automatically deduplicated.
The SHF_GNU_RETAIN (R) flag requires binutils >= 2.36, which cuts
off CentOS 9. To avoid breaking builds, override the flags passed
to the linker to skip that flag. This unfortunately means in many
cases the ELF notes section will be dropped by the linker due to
--gc-sections. For CentOS 9 builds, the choice is thus between
not using --gc-sections and losing dlopen ELF notes, and the latter
is made here given it's less impactful.
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
In https://bugzilla.redhat.com/show_bug.cgi?id=2479961 a user
reported that they are confused that 'init 6' and such commands
do not work anymore. We removed support for the whole interface,
but it's likely that such commands persist in various scripts
and finger memories. Let's give a helpful hint that this inteface
is gone and what to use instead.
- This synchronize the state for existing stuff.
- Enable translations for Plymouth interaction strings.
- Translate them in French as an example.
Fixes#42384.
When the accumulated trie key exceeds the fixed-size line buffer,
linebuf_get() returns NULL. trie_fnmatch_f() passed that NULL straight
into fnmatch() as the pattern, causing a SIGSEGV on a crafted hwdb.bin
(reachable now that recursion is capped rather than overflowing the
stack first). Treat the NULL like the other corruption checks and
return -EBADMSG.
Follow-up for 73fea38cf1
Fixes https://github.com/systemd/systemd/issues/42376
Co-developed-by: Claude Opus 4.8 <noreply@anthropic.com>
When ssh-ing into a VM, you generally do not want to log
in as your user from the host. Let's default to the root
user unless a user is explicitly specified.
sshd reads AuthorizedKeysFile after dropping to the authenticating user's UID, so the
0400 credential file under %d/ is unreadable for non-root users. Materialize a 0444
copy in a RuntimeDirectory so the ephemeral key works for any user. */
A hostile but structurally valid 382-byte PE32+ "EFI application" with a
single section whose VirtualSize is ~4 GiB and SizeOfRawData is 0 drives
uki_hash() into ~4.17 M iterations of SHA-256 over 1024 bytes of zeros
— wedging the parser for >10 s. Nine more slow-units share the same
shape. A separate MSAN finding from the new fuzzer (CIFuzz, memory
sanitizer) shows pe_load_headers() reading uninitialised heap memory
when SizeOfOptionalHeader is too small to actually contain
NumberOfRvaAndSizes.
Three tightenings in src/shared/pe-binary.c:
1. In pe_load_sections, reject sections whose PointerToRawData +
SizeOfRawData exceeds the actual file size. Raw section data must
fit inside the file; this is the parser-wide invariant
pe_hash / uki_hash / pe_read_section_data rely on.
2. In uki_hash, cap the (VirtualSize - SizeOfRawData) zero-padding
hash loop at 64 MiB. Real UKIs do not pad sections with tens of
MiB of zero-equivalent data; anything above this cap is a
malformed PE.
3. In pe_load_headers, reject a PE whose SizeOfOptionalHeader is too
small to cover up to NumberOfRvaAndSizes. Without this guard the
subsequent size-mismatch check reads uninitialised optional-header
bytes, caught by MSAN under CIFuzz.
Add the 382 B canonical reproducer (plus two structural siblings) and
the MSAN reproducer to test/fuzz/fuzz-pe-binary/. Also add a libFuzzer
harness in src/fuzz/fuzz-pe-binary.c and unit tests in
src/test/test-pe-binary.c that exercise each fix branch in isolation.
The 64 MiB hash boundary test is gated behind SYSTEMD_SLOW_TESTS so it
doesn't slow down emulated-arch CI.
This is a robustness fix, not a security fix: PE binaries consumed by
bootctl / systemd-stub / pcrlock / kernel-install / systemd-measure are
already trusted and signed at the consumer side, so the worst pre-fix
behaviour is wasted CPU on a UKI install / measure / inspect call.
Closes#42344.
Reported-by: AI-assisted libFuzzer campaign
Co-developed-by: Claude Opus 4.7 <noreply@anthropic.com>
We currently log at warning level:
/usr/lib/systemd/system/systemd-udevd.service:56: System call bpf cannot be
resolved as libseccomp is not available, ignoring: Operation not supported
In the initrd, or in minimal installations, not installing libseccomp is
reasonable, depending on various other choices. We shouldn't make fuss
about this.
C.f. https://bugzilla.redhat.com/show_bug.cgi?id=2463540.
Many *at()-style helpers accept a directory fd that may be either a
regular, valid fd (>= 0) or one of the special AT_FDCWD/XAT_FDROOT
wildcard values, and open-code that check in their assertions. Add a
wildcard_fd_is_valid() helper for it and use it tree-wide.
When both --private-users and --network-namespace-path are
specified, systemd-nspawn fails to start with "Operation not
permitted" during the setns() call.
This occurs because of the following execution sequence:
1. The outer child calls raw_clone() with CLONE_NEWUSER to create
the new user namespace.
2. The inner child is spawned inside this new user namespace.
3. The inner child then attempts to call setns() to join the
external network namespace.
Because the inner child is already running inside
the restricted user namespace, the kernel rejects
the setns() call to join a network namespace owned by
a different (host/more privileged) user namespace.
Fix this by moving the setns() call to the outer child, executing it
just before the raw_clone() call. This ensures the network namespace
is joined while the process still has the necessary privileges, which
also aligns with the inner child's expectation that the network
namespace is already set up upon entry.
Luca Boccassi
Paul Meyer
Adam Williamson
Lennart Poettering
Yu Watanabe
Antonio Alvarez Feijoo
Daan De Meyer
Zbigniew Jędrzejewski-Szmek
nikstur
elysia090
George Tsiamasiotis
Raito Bezarius
jeffhuang
Malformed C