| Age | Commit message (Collapse) | Author | Files | Lines |
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Fix warnings and enable Wall.
pidfd_wait.c: In function ‘wait_nonblock’:
pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable]
150 | int pidfd, status = 0;
| ^~~~~~
...
pidfd_test.c: In function ‘child_poll_exec_test’:
pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type]
438 | }
| ^
Signed-off-by: Li Zhijian <[email protected]>
v2: fix mistake assignment to pidfd
Signed-off-by: Shuah Khan <[email protected]>
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0Day/LKP observed that the kselftest blocks forever since one of the
pidfd_wait doesn't terminate in 1 of 30 runs. After digging into
the source, we found that it blocks at:
ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WCONTINUED, NULL), 0);
wait_states has below testing flow:
CHILD PARENT
---------------+--------------
1 STOP itself
2 WAIT for CHILD STOPPED
3 SIGNAL CHILD to CONT
4 CONT
5 STOP itself
5' WAIT for CHILD CONT
6 WAIT for CHILD STOPPED
The problem is that the kernel cannot ensure the order of 5 and 5', once
5 goes first, the test will fail.
we can reproduce it by:
$ while true; do make run_tests -C pidfd; done
Introduce a blocking read in child process to make sure the parent can
check its WCONTINUED.
CC: Philip Li <[email protected]>
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
Reviewed-by: Christian Brauner (Microsoft) <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Paul and I got trapped a few times by not seeing the effects of applying
a patch to the nolibc source code until a "make clean" was issued in
the nolibc directory. It's particularly annoying when trying to confirm
that a proposed patch really solves a problem (or that reverting it
reintroduces the problem).
The reason for the sysroot not being rebuilt was that it can be quite
slow. But in fact it's only slow after a "make clean" issued at the
kernel's topdir, because it's the main "make headers" that can take a
tens of seconds; as long as "usr/include" still contains headers, the
"headers_install" phase is only a quick "rsync", and rebuilding the
whole nolibc sysroot takes a bit less than one second, which is perfectly
acceptable for a test, even more once the time lost caused by misleading
results is factored in.
This patch marks the sysroot target as phony and starts by clearing
the previous sysroot for the current architecture before reinstalling
it. Thanks to this, applying a patch to nolibc makes the effect
immediately visible to "make nolibc-test":
$ time make -j -C tools/testing/selftests/nolibc nolibc-test
make: Entering directory '/k/tools/testing/selftests/nolibc'
MKDIR sysroot/x86/include
make[1]: Entering directory '/k/tools/include/nolibc'
make[2]: Entering directory '/k'
make[2]: Leaving directory '/k'
make[2]: Entering directory '/k'
INSTALL /k/tools/testing/selftests/nolibc/sysroot/sysroot/include
make[2]: Leaving directory '/k'
make[1]: Leaving directory '/k/tools/include/nolibc'
CC nolibc-test
make: Leaving directory '/k/tools/testing/selftests/nolibc'
real 0m0.869s
user 0m0.716s
sys 0m0.149s
Cc: "Paul E. McKenney" <[email protected]>
Link: https://lore.kernel.org/all/20221021155645.GK5600@paulmck-ThinkPad-P17-Gen-1/
Signed-off-by: Willy Tarreau <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
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This adds 7 combinations of input values for memcmp() using signed and
unsigned bytes, which will trigger on the original code before Rasmus'
fix. This is mostly aimed at helping backporters verify their work, and
showing how tests for corner cases can be added to the selftests suite.
Before the fix it reports:
12 memcmp_20_20 = 0 [OK]
13 memcmp_20_60 = -64 [OK]
14 memcmp_60_20 = 64 [OK]
15 memcmp_20_e0 = 64 [FAIL]
16 memcmp_e0_20 = -64 [FAIL]
17 memcmp_80_e0 = -96 [OK]
18 memcmp_e0_80 = 96 [OK]
And after:
12 memcmp_20_20 = 0 [OK]
13 memcmp_20_60 = -64 [OK]
14 memcmp_60_20 = 64 [OK]
15 memcmp_20_e0 = -192 [OK]
16 memcmp_e0_20 = 192 [OK]
17 memcmp_80_e0 = -96 [OK]
18 memcmp_e0_80 = 96 [OK]
Cc: Rasmus Villemoes <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
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Tag "guest_saw_irq" as "volatile" to ensure that the compiler will never
optimize away lookups. Relying on the compiler thinking that the flag
is global and thus might change also works, but it's subtle, less robust,
and looks like a bug at first glance, e.g. risks being "fixed" and
breaking the test.
Make the flag "static" as well since convincing the compiler it's global
is no longer necessary.
Alternatively, the flag could be accessed with {READ,WRITE}_ONCE(), but
literally every access would need the wrappers, and eking out performance
isn't exactly top priority for selftests.
Signed-off-by: Sean Christopherson <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
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Tests for races between shinfo_cache (de)activation and hypercall+ioctl()
processing. KVM has had bugs where activating the shared info cache
multiple times and/or with concurrent users results in lock corruption,
NULL pointer dereferences, and other fun.
For the timer injection testcase (#22), re-arm the timer until the IRQ
is successfully injected. If the timer expires while the shared info
is deactivated (invalid), KVM will drop the event.
Signed-off-by: Michal Luczaj <[email protected]>
Co-developed-by: Sean Christopherson <[email protected]>
Signed-off-by: Sean Christopherson <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
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dependency
Now that we have a good way to specify dependency of tests on programs,
convert some of the tracer tests to use this method for specifying
dependency on 'chrt'.
Reviewed-by: Steven Rostedt (Google) <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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All these tests depend on the ping command and will fail if it is not
found. Allow tests to specify dependencies on programs through the
'requires' field. Add dependency on 'ping' for some of the trigger
tests.
Link: https://lore.kernel.org/all/[email protected]/
Reported-by: Akanksha J N <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Suggested-by: Steven Rostedt (Google) <[email protected]>
Reviewed-by: Steven Rostedt (Google) <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Previous commit resolves a WARN splat that can be difficult to reproduce,
but with the ovs-dpctl.py utility, it can be trivial. Introduce a test
case which creates a DP, and then downgrades the feature set. This will
include a utility 'ovs-dpctl.py' that can be extended to do additional
tests and diagnostics.
Signed-off-by: Aaron Conole <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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There is a spelling mistake in a print statement. Fix it.
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Add test for WDIOC_GETTEMP and this ioctl might not be supported by some
devices and if it is this test will print the following message:
Inappropriate ioctl for device
Signed-off-by: Shuah Khan <[email protected]>
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Change show watchdog_info output to print option strings instead
of hex values to make it user friendly and human readable.
Signed-off-by: Shuah Khan <[email protected]>
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Add support for calling WDIOC_GETSTATUS and printing supported
features and status.
Signed-off-by: Shuah Khan <[email protected]>
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The test prints reset reason when WDIOC_GETBOOTSTATUS returns
a 0 flag value and all other cases simply say watchdog.
Parse the flag values returned by WDIOC_GETBOOTSTATUS and print
corresponding reset reason for each WDIOF_* boot status.
Signed-off-by: Shuah Khan <[email protected]>
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* check that a child process is in parent's time namespace after vfork.
* check that a child process is in the target namespace after exec.
Output on success:
1..4
ok 1 parent before vfork
ok 2 child after exec
ok 3 wait for child
ok 4 parent after vfork
# Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Andrei Vagin <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf.
The net-memcg fix stands out, the rest is very run-off-the-mill. Maybe
I'm biased.
Current release - regressions:
- eth: fman: re-expose location of the MAC address to userspace,
apparently some udev scripts depended on the exact value
Current release - new code bugs:
- bpf:
- wait for busy refill_work when destroying bpf memory allocator
- allow bpf_user_ringbuf_drain() callbacks to return 1
- fix dispatcher patchable function entry to 5 bytes nop
Previous releases - regressions:
- net-memcg: avoid stalls when under memory pressure
- tcp: fix indefinite deferral of RTO with SACK reneging
- tipc: fix a null-ptr-deref in tipc_topsrv_accept
- eth: macb: specify PHY PM management done by MAC
- tcp: fix a signed-integer-overflow bug in tcp_add_backlog()
Previous releases - always broken:
- eth: amd-xgbe: SFP fixes and compatibility improvements
Misc:
- docs: netdev: offer performance feedback to contributors"
* tag 'net-6.1-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits)
net-memcg: avoid stalls when under memory pressure
tcp: fix indefinite deferral of RTO with SACK reneging
tcp: fix a signed-integer-overflow bug in tcp_add_backlog()
net: lantiq_etop: don't free skb when returning NETDEV_TX_BUSY
net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed
docs: netdev: offer performance feedback to contributors
kcm: annotate data-races around kcm->rx_wait
kcm: annotate data-races around kcm->rx_psock
net: fman: Use physical address for userspace interfaces
net/mlx5e: Cleanup MACsec uninitialization routine
atlantic: fix deadlock at aq_nic_stop
nfp: only clean `sp_indiff` when application firmware is unloaded
amd-xgbe: add the bit rate quirk for Molex cables
amd-xgbe: fix the SFP compliance codes check for DAC cables
amd-xgbe: enable PLL_CTL for fixed PHY modes only
amd-xgbe: use enums for mailbox cmd and sub_cmds
amd-xgbe: Yellow carp devices do not need rrc
bpf: Use __llist_del_all() whenever possbile during memory draining
bpf: Wait for busy refill_work when destroying bpf memory allocator
MAINTAINERS: add keyword match on PTP
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- futex, intel_pstate, kexec build fixes
- ftrace dynamic_events dependency check fix
- memory-hotplug fix to remove redundant warning from test report
* tag 'linux-kselftest-fixes-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ftrace: fix dynamic_events dependency check
selftests/memory-hotplug: Remove the redundant warning information
selftests/kexec: fix build for ARCH=x86_64
selftests/intel_pstate: fix build for ARCH=x86_64
selftests/futex: fix build for clang
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:
====================
pull-request: bpf 2022-10-23
We've added 7 non-merge commits during the last 18 day(s) which contain
a total of 8 files changed, 69 insertions(+), 5 deletions(-).
The main changes are:
1) Wait for busy refill_work when destroying bpf memory allocator, from Hou.
2) Allow bpf_user_ringbuf_drain() callbacks to return 1, from David.
3) Fix dispatcher patchable function entry to 5 bytes nop, from Jiri.
4) Prevent decl_tag from being referenced in func_proto, from Stanislav.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Use __llist_del_all() whenever possbile during memory draining
bpf: Wait for busy refill_work when destroying bpf memory allocator
bpf: Fix dispatcher patchable function entry to 5 bytes nop
bpf: prevent decl_tag from being referenced in func_proto
selftests/bpf: Add reproducer for decl_tag in func_proto return type
selftests/bpf: Make bpf_user_ringbuf_drain() selftest callback return 1
bpf: Allow bpf_user_ringbuf_drain() callbacks to return 1
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Pull kvm fixes from Paolo Bonzini:
"RISC-V:
- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc
ARM:
- Fix a bug preventing restoring an ITS containing mappings for very
large and very sparse device topology
- Work around a relocation handling error when compiling the nVHE
object with profile optimisation
- Fix for stage-2 invalidation holding the VM MMU lock for too long
by limiting the walk to the largest block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
x86:
- add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
selftests:
- synchronize includes between include/uapi and tools/include/uapi"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
tools: include: sync include/api/linux/kvm.h
KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
kvm: Add support for arch compat vm ioctls
RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
RISC-V: Fix compilation without RISCV_ISA_ZICBOM
KVM: arm64: vgic: Fix exit condition in scan_its_table()
KVM: arm64: nvhe: Fix build with profile optimization
KVM: selftests: Fix number of pages for memory slot in memslot_modification_stress_test
KVM: arm64: selftests: Fix multiple versions of GIC creation
KVM: arm64: Enable stack protection and branch profiling for VHE
KVM: arm64: Limit stage2_apply_range() batch size to largest block
KVM: arm64: Work out supported block level at compile time
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Fix raw data handling when perf events are used in bpf
- Rework how SIGTRAPs get delivered to events to address a bunch of
problems with it. Add a selftest for that too
* tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bpf: Fix sample_flags for bpf_perf_event_output
selftests/perf_events: Add a SIGTRAP stress test with disables
perf: Fix missing SIGTRAPs
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.1, take #1
- Fix for stage-2 invalidation holding the VM MMU lock
for too long by limiting the walk to the largest
block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
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lag_lib.sh creates the interfaces dummy1 and dummy2 whereas
dev_addr_lists.sh:destroy() deletes the interfaces dummy0 and dummy1. Fix
the mismatch in names.
Fixes: bbb774d921e2 ("net: Add tests for bonding and team address list management")
Signed-off-by: Benjamin Poirier <[email protected]>
Reviewed-by: Jonathan Toppins <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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When exporting and running a subset of selftests via kselftest, files from
parts of the source tree which were not exported are not available. A few
tests are trying to source such files. Address the problem by using
symlinks.
The problem can be reproduced by running:
make -C tools/testing/selftests gen_tar TARGETS="drivers/net/bonding"
[... extract archive ...]
./run_kselftest.sh
or:
make kselftest KBUILD_OUTPUT=/tmp/kselftests TARGETS="drivers/net/bonding"
Fixes: bbb774d921e2 ("net: Add tests for bonding and team address list management")
Fixes: eccd0a80dc7f ("selftests: net: dsa: add a stress test for unlocked FDB operations")
Link: https://lore.kernel.org/netdev/[email protected]/
Reported-by: Jonathan Toppins <[email protected]>
Signed-off-by: Benjamin Poirier <[email protected]>
Reviewed-by: Jonathan Toppins <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Current release - regressions:
- revert "net: fix cpu_max_bits_warn() usage in
netif_attrmask_next{,_and}"
- revert "net: sched: fq_codel: remove redundant resource cleanup in
fq_codel_init()"
- dsa: uninitialized variable in dsa_slave_netdevice_event()
- eth: sunhme: uninitialized variable in happy_meal_init()
Current release - new code bugs:
- eth: octeontx2: fix resource not freed after malloc
Previous releases - regressions:
- sched: fix return value of qdisc ingress handling on success
- sched: fix race condition in qdisc_graft()
- udp: update reuse->has_conns under reuseport_lock.
- tls: strp: make sure the TCP skbs do not have overlapping data
- hsr: avoid possible NULL deref in skb_clone()
- tipc: fix an information leak in tipc_topsrv_kern_subscr
- phylink: add mac_managed_pm in phylink_config structure
- eth: i40e: fix DMA mappings leak
- eth: hyperv: fix a RX-path warning
- eth: mtk: fix memory leaks
Previous releases - always broken:
- sched: cake: fix null pointer access issue when cake_init() fails"
* tag 'net-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (43 commits)
net: phy: dp83822: disable MDI crossover status change interrupt
net: sched: fix race condition in qdisc_graft()
net: hns: fix possible memory leak in hnae_ae_register()
wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new()
sfc: include vport_id in filter spec hash and equal()
genetlink: fix kdoc warnings
selftests: add selftest for chaining of tc ingress handling to egress
net: Fix return value of qdisc ingress handling on success
net: sched: sfb: fix null pointer access issue when sfb_init() fails
Revert "net: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()"
net: sched: cake: fix null pointer access issue when cake_init() fails
ethernet: marvell: octeontx2 Fix resource not freed after malloc
netfilter: nf_tables: relax NFTA_SET_ELEM_KEY_END set flags requirements
netfilter: rpfilter/fib: Set ->flowic_uid correctly for user namespaces.
ionic: catch NULL pointer issue on reconfig
net: hsr: avoid possible NULL deref in skb_clone()
bnxt_en: fix memory leak in bnxt_nvm_test()
ip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed
udp: Update reuse->has_conns under reuseport_lock.
net: ethernet: mediatek: ppe: Remove the unused function mtk_foe_entry_usable()
...
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Currently, if the torture.sh allmodconfig step fails, this is counted as
an error (as it should be), but there is also an extraneous complaint
about a missing log file. This commit therefore adds that log file,
which is hoped to reduce confused reactions to the error report.
Signed-off-by: Paul E. McKenney <[email protected]>
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Currently, torture.sh will compress the vmlinux files for KASAN and
KCSAN runs. But it will compress all of the files, including those
copied verbatim by the kvm-again.sh script. Compression takes around ten
minutes, so this is not a good thing. This commit therefore compresses
only one of a given set of identical vmlinux files, and then hard-links
it to the directories produced by kvm-again.sh.
Signed-off-by: Paul E. McKenney <[email protected]>
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This change enables to extend CFLAGS and LDFLAGS from command line, e.g.
to extend compiler checks: make USERCFLAGS=-Werror USERLDFLAGS=-static
USERCFLAGS and USERLDFLAGS are documented in
Documentation/kbuild/makefiles.rst and Documentation/kbuild/kbuild.rst
This should be backported (down to 5.10) to improve previous kernel
versions testing as well.
Cc: Shuah Khan <[email protected]>
Cc: [email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Shuah Khan <[email protected]>
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The only (forced) static test binary doesn't depend on libcap. Because
using -lcap on systems that don't have such static library would fail
(e.g. on Arch Linux), let's be more specific and require only dynamic
libcap linking.
Fixes: a52540522c95 ("selftests/landlock: Fix out-of-tree builds")
Cc: Anders Roxell <[email protected]>
Cc: Guillaume Tucker <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: [email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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This test runs a simple ingress tc setup between two veth pairs,
then adds a egress->ingress rule to test the chaining of tc ingress
pipeline to tc egress piepline.
Signed-off-by: Paul Blakey <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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All file descriptors that are truncatable need to have the Landlock
access rights set correctly on the file's Landlock security blob. This
is also the case for files that are opened by other means than
open(2).
Test coverage for security/landlock is 94.7% of 838 lines according to
gcc/gcov-11.
Signed-off-by: Günther Noack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[mic: Add test coverage in commit message]
Signed-off-by: Mickaël Salaün <[email protected]>
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A file descriptor created in a restricted process carries Landlock
restrictions with it which will apply even if the same opened file is
used from an unrestricted process.
This change extracts suitable FD-passing helpers from base_test.c and
moves them to common.h. We use the fixture variants from the ftruncate
fixture to exercise the same scenarios as in the open_and_ftruncate
test, but doing the Landlock restriction and open() in a different
process than the ftruncate() call.
Signed-off-by: Günther Noack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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The checkpatch tool started to flag __attribute__(__unused__), which
we previously used. The header where this is normally defined is not
currently compatible with selftests.
This is the same approach as used in selftests/net/psock_lib.h.
Signed-off-by: Günther Noack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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This test uses multiple fixture variants to exercise a broader set of
scnenarios.
Signed-off-by: Günther Noack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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These tests exercise the following truncation operations:
* truncate() (truncate by path)
* ftruncate() (truncate by file descriptor)
* open with the O_TRUNC flag
* special case: creat(), which is open with O_CREAT|O_WRONLY|O_TRUNC.
in the following scenarios:
* Files with read, write and truncate rights.
* Files with read and truncate rights.
* Files with the truncate right.
* Files without the truncate right.
In particular, the following scenarios are enforced with the test:
* open() with O_TRUNC requires the truncate right, if it truncates a file.
open() already checks security_path_truncate() in this case,
and it required no additional check in the Landlock LSM's file_open hook.
* creat() requires the truncate right
when called with an existing filename.
* creat() does *not* require the truncate right
when it's creating a new file.
* ftruncate() requires that the file was opened by a thread that had
the truncate right for the file at the time of open(). (The rights
are carried along with the opened file.)
Signed-off-by: Günther Noack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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Introduce the LANDLOCK_ACCESS_FS_TRUNCATE flag for file truncation.
This flag hooks into the path_truncate, file_truncate and
file_alloc_security LSM hooks and covers file truncation using
truncate(2), ftruncate(2), open(2) with O_TRUNC, as well as creat().
This change also increments the Landlock ABI version, updates
corresponding selftests, and updates code documentation to document
the flag.
In security/security.c, allocate security blobs at pointer-aligned
offsets. This fixes the problem where one LSM's security blob can
shift another LSM's security blob to an unaligned address (reported
by Nathan Chancellor).
The following operations are restricted:
open(2): requires the LANDLOCK_ACCESS_FS_TRUNCATE right if a file gets
implicitly truncated as part of the open() (e.g. using O_TRUNC).
Notable special cases:
* open(..., O_RDONLY|O_TRUNC) can truncate files as well in Linux
* open() with O_TRUNC does *not* need the TRUNCATE right when it
creates a new file.
truncate(2) (on a path): requires the LANDLOCK_ACCESS_FS_TRUNCATE
right.
ftruncate(2) (on a file): requires that the file had the TRUNCATE
right when it was previously opened. File descriptors acquired by
other means than open(2) (e.g. memfd_create(2)) continue to support
truncation with ftruncate(2).
Cc: Nathan Chancellor <[email protected]>
Signed-off-by: Günther Noack <[email protected]>
Acked-by: Paul Moore <[email protected]> (LSM)
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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This commit causes torture.sh to use the new --bootargs and --datestamp
parameters to kvm-again.sh in order to avoid redundant kernel builds
during rcuscale and refscale testing. This trims the better part of an
hour off of torture.sh runs that use --do-kasan.
Signed-off-by: Paul E. McKenney <[email protected]>
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This commit adds a --datestamp parameter to kvm-again.sh, which, in
contrast to the existing --rundir argument, specifies only the last
segments of the pathname. This addition enables torture.sh to use
kvm-again.sh in order to avoid redundant kernel builds.
Signed-off-by: Paul E. McKenney <[email protected]>
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As it should, the kvm-recheck.sh script sets the TORTURE_SUITE bash
variable based on the type of rcutorture test being run. However,
it does not export it. Which is OK, at least until you try running
kvm-again.sh on either a rcuscale or a refscale test, at which point you
get false-positive "no success message, N successful version messages"
errors. This commit therefore causes the kvm-recheck.sh script to export
TORTURE_SUITE, suppressing these false positives.
Signed-off-by: Paul E. McKenney <[email protected]>
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The kvm-again.sh script, when running locally, can place the QEMU output
into kvm-test-1-run-qemu.sh.out instead of kvm-test-1-run.sh.out. This
commit therefore makes kvm-test-1-run-qemu.sh check both locations.
Signed-off-by: Paul E. McKenney <[email protected]>
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This commit drags the rcutorture scripting kicking and screaming into the
twenty-first century by making use of the BSD-derived mktemp command to
create temporary files and directories. In happy contrast to many of its
ill-behaved predecessors, mktemp seems to actually work reasonably reliably!
Signed-off-by: Paul E. McKenney <[email protected]>
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The kvm-again.sh script can be used to repeat short boot-time tests,
but the kernel boot arguments cannot be changed. This means that every
change in kernel boot arguments currently necessitates a kernel build,
which greatly increases the duration of kernel-boot testing.
This commit therefore adds a --bootargs parameter to kvm-again.sh,
which allows a given kernel to be repeatedly booted, but overriding
old and adding new kernel boot parameters. This allows an old kernel
to be booted with new kernel boot parameters, avoiding the overhead of
rebuilding the kernel under test.
Signed-off-by: Paul E. McKenney <[email protected]>
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commit 95c104c378dc ("tracing: Auto generate event name when creating a
group of events") changed the syntax in the ftrace README file which is
used by the selftests to check what features are support. Adjust the
string to make test_duplicates.tc and trigger-synthetic-eprobe.tc work
again.
Fixes: 95c104c378dc ("tracing: Auto generate event name when creating a group of events")
Signed-off-by: Sven Schnelle <[email protected]>
Acked-by: Steven Rostedt (Google) <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Remove the redundant warning information of online_all_offline_memory()
since there is a warning in online_memory_expect_success().
Signed-off-by: Zhao Gongyi <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Handle the scenario where the build is launched with the ARCH envvar
defined as x86_64.
Signed-off-by: Ricardo Cañuelo <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Handle the scenario where the build is launched with the ARCH envvar
defined as x86_64.
Signed-off-by: Ricardo Cañuelo <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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Don't use the test-specific header files as source files to force a
target dependency, as clang will complain if more than one source file
is used for a compile command with a single '-o' flag.
Use the proper Makefile variables instead as defined in
tools/testing/selftests/lib.mk.
Signed-off-by: Ricardo Cañuelo <[email protected]>
Reviewed-by: André Almeida <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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It should trigger a WARN_ON_ONCE in btf_type_id_size.
btf_func_proto_check kernel/bpf/btf.c:4447 [inline]
btf_check_all_types kernel/bpf/btf.c:4723 [inline]
btf_parse_type_sec kernel/bpf/btf.c:4752 [inline]
btf_parse kernel/bpf/btf.c:5026 [inline]
btf_new_fd+0x1926/0x1e70 kernel/bpf/btf.c:6892
bpf_btf_load kernel/bpf/syscall.c:4324 [inline]
__sys_bpf+0xb7d/0x4cf0 kernel/bpf/syscall.c:5010
__do_sys_bpf kernel/bpf/syscall.c:5069 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5067 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:5067
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Cc: Yonghong Song <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Signed-off-by: Stanislav Fomichev <[email protected]>
Acked-by: Yonghong Song <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin KaFai Lau <[email protected]>
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Add a SIGTRAP stress test that exercises repeatedly enabling/disabling
an event while it concurrently keeps firing.
Signed-off-by: Marco Elver <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/all/[email protected]/
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- fix a race which causes page refcounting errors in ZONE_DEVICE pages
(Alistair Popple)
- fix userfaultfd test harness instability (Peter Xu)
- various other patches in MM, mainly fixes
* tag 'mm-stable-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (29 commits)
highmem: fix kmap_to_page() for kmap_local_page() addresses
mm/page_alloc: fix incorrect PGFREE and PGALLOC for high-order page
mm/selftest: uffd: explain the write missing fault check
mm/hugetlb: use hugetlb_pte_stable in migration race check
mm/hugetlb: fix race condition of uffd missing/minor handling
zram: always expose rw_page
LoongArch: update local TLB if PTE entry exists
mm: use update_mmu_tlb() on the second thread
kasan: fix array-bounds warnings in tests
hmm-tests: add test for migrate_device_range()
nouveau/dmem: evict device private memory during release
nouveau/dmem: refactor nouveau_dmem_fault_copy_one()
mm/migrate_device.c: add migrate_device_range()
mm/migrate_device.c: refactor migrate_vma and migrate_deivce_coherent_page()
mm/memremap.c: take a pgmap reference on page allocation
mm: free device private pages have zero refcount
mm/memory.c: fix race when faulting a device private page
mm/damon: use damon_sz_region() in appropriate place
mm/damon: move sz_damon_region to damon_sz_region
lib/test_meminit: add checks for the allocation functions
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and wifi.
Current release - regressions:
- Revert "net/sched: taprio: make qdisc_leaf() see the
per-netdev-queue pfifo child qdiscs", it may cause crashes when the
qdisc is reconfigured
- inet: ping: fix splat due to packet allocation refactoring in inet
- tcp: clean up kernel listener's reqsk in inet_twsk_purge(), fix UAF
due to races when per-netns hash table is used
Current release - new code bugs:
- eth: adin1110: check in netdev_event that netdev belongs to driver
- fixes for PTR_ERR() vs NULL bugs in driver code, from Dan and co.
Previous releases - regressions:
- ipv4: handle attempt to delete multipath route when fib_info
contains an nh reference, avoid oob access
- wifi: fix handful of bugs in the new Multi-BSSID code
- wifi: mt76: fix rate reporting / throughput regression on mt7915
and newer, fix checksum offload
- wifi: iwlwifi: mvm: fix double list_add at
iwl_mvm_mac_wake_tx_queue (other cases)
- wifi: mac80211: do not drop packets smaller than the LLC-SNAP
header on fast-rx
Previous releases - always broken:
- ieee802154: don't warn zero-sized raw_sendmsg()
- ipv6: ping: fix wrong checksum for large frames
- mctp: prevent double key removal and unref
- tcp/udp: fix memory leaks and races around IPV6_ADDRFORM
- hv_netvsc: fix race between VF offering and VF association message
Misc:
- remove -Warray-bounds silencing in the drivers, compilers fixed"
* tag 'net-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
sunhme: fix an IS_ERR() vs NULL check in probe
net: marvell: prestera: fix a couple NULL vs IS_ERR() checks
kcm: avoid potential race in kcm_tx_work
tcp: Clean up kernel listener's reqsk in inet_twsk_purge()
net: phy: micrel: Fixes FIELD_GET assertion
openvswitch: add nf_ct_is_confirmed check before assigning the helper
tcp: Fix data races around icsk->icsk_af_ops.
ipv6: Fix data races around sk->sk_prot.
tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct().
udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM).
tcp/udp: Fix memory leak in ipv6_renew_options().
mctp: prevent double key removal and unref
selftests: netfilter: Fix nft_fib.sh for all.rp_filter=1
netfilter: rpfilter/fib: Populate flowic_l3mdev field
selftests: netfilter: Test reverse path filtering
net/mlx5: Make ASO poll CQ usable in atomic context
tcp: cdg: allow tcp_cdg_release() to be called multiple times
inet: ping: fix recent breakage
ipv6: ping: fix wrong checksum for large frames
net: ethernet: ti: am65-cpsw: set correct devlink flavour for unused ports
...
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