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1cb0f56d96185cb20e63e191fc291191823e6f52
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Paul Chaignon 1cb0f56d96 bpf: WARN_ONCE on verifier bugs 
Throughout the verifier's logic, there are multiple checks for
inconsistent states that should never happen and would indicate a
verifier bug. These bugs are typically logged in the verifier logs and
sometimes preceded by a WARN_ONCE.

This patch reworks these checks to consistently emit a verifier log AND
a warning when CONFIG_DEBUG_KERNEL is enabled. The consistent use of
WARN_ONCE should help fuzzers (ex. syzkaller) expose any situation
where they are actually able to reach one of those buggy verifier
states.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/aCs1nYvNNMq8dAWP@mail.gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-05-19 08:17:08 -07:00
..
bpf
bpf: WARN_ONCE on verifier bugs
2025-05-19 08:17:08 -07:00
cgroup
cgroup/cpuset-v1: Add missing support for cpuset_v2_mode
2025-04-17 07:32:53 -10:00
configs
Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 09:29:18 -07:00
debug
Merge tag 'tty-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2025-04-02 18:17:33 -07:00
dma
dma-coherent: Warn if OF reserved memory is beyond current coherent DMA mask
2025-04-22 17:44:09 +02:00
entry
Merge tag 'objtool-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-03-24 21:18:05 -07:00
events
perf/core: Change to POLLERR for pinned events with error
2025-04-23 09:39:06 +02:00
futex
futex: Use a hashmask instead of hashsize
2025-02-26 16:07:59 +01:00
gcov
gcov: clang: use correct function param names
2025-01-24 22:47:27 -08:00
irq
genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move()
2025-04-04 17:08:36 +02:00
kcsan
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
livepatch
Merge tag 'modules-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
2025-03-30 15:44:36 -07:00
locking
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
module
Merge tag 'trace-ringbuffer-v6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2025-03-31 13:37:22 -07:00
power
Merge tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2025-03-29 10:01:55 -07:00
printk
Merge tag 'printk-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
2025-03-27 19:22:24 -07:00
rcu
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
sched
sched_ext: Remove bpf_scx_get_func_proto
2025-05-09 11:01:45 -07:00
time
timekeeping: Add a lockdep override in tick_freeze()
2025-04-09 22:30:39 +02:00
trace
bpf: Fix WARN() in get_bpf_raw_tp_regs
2025-05-13 09:32:56 -07:00
.gitignore
…
acct.c
acct: block access to kernel internal filesystems
2025-02-12 12:24:16 +01:00
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
fs: add kern_path_locked_negative()
2025-04-15 11:32:34 +02:00
audit.c
audit: Initialize lsmctx to avoid memory allocation error
2025-01-29 20:02:04 -05:00
audit.h
audit: change context data from secid to lsm_prop
2024-10-11 14:34:16 -04:00
auditfilter.c
audit: fix suffixed '/' filename matching
2024-12-05 19:22:38 -05:00
auditsc.c
fs: dedup handling of struct filename init and refcounts bumps
2025-03-18 15:34:27 +01:00
backtracetest.c
backtracetest: add MODULE_DESCRIPTION()
2024-06-24 22:24:55 -07:00
bounds.c
…
capability.c
capability: Remove unused has_capability
2025-03-07 22:03:09 -06:00
cfi.c
Merge tag 'modules-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
2025-03-30 15:44:36 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Make RCU watch ct_kernel_exit_state() warning
2025-03-04 18:44:29 -08:00
cpu_pm.c
…
cpu.c
Merge tag 'hyperv-next-signed-20250324' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
2025-03-25 14:47:04 -07:00
crash_core.c
crash: Use note name macros
2025-02-10 16:56:58 -08:00
crash_reserve.c
crash: remove an unused argument from reserve_crashkernel_generic()
2025-03-16 22:30:47 -07:00
cred.c
cred: remove old {override,revert}_creds() helpers
2024-12-02 11:25:09 +01:00
delayacct.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
dma.c
…
elfcorehdr.c
…
exec_domain.c
…
exit.c
exit: fix the usage of delay_group_leader->exit_code in do_notify_parent() and pidfs_exit()
2025-03-25 15:56:22 +01:00
exit.h
…
extable.c
…
fail_function.c
…
fork.c
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
freezer.c
sched/fair: Fix external p->on_rq users
2024-10-14 09:14:35 +02:00
gen_kheaders.sh
Revert "kheaders: Ignore silly-rename files"
2025-03-15 21:22:52 +09:00
groups.c
…
hung_task.c
hung_task: show the blocker task if the task is hung on mutex
2025-03-21 22:10:04 -07:00
iomem.c
mm/memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
2025-02-21 15:05:38 +01:00
irq_work.c
kasan: make kasan_record_aux_stack_noalloc() the default behaviour
2025-01-13 22:40:36 -08:00
jump_label.c
jump_label: Use RCU in all users of __module_text_address().
2025-03-10 11:54:46 +01:00
kallsyms_internal.h
kallsyms: get rid of code for absolute kallsyms
2024-07-20 16:33:21 +09:00
kallsyms_selftest.c
kallsyms: Use kthread_run_on_cpu()
2025-01-02 22:12:12 +01:00
kallsyms_selftest.h
…
kallsyms.c
kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU
2025-02-18 10:16:04 +01:00
kcmp.c
kcmp: improve performance adding an unlikely hint to task comparisons
2025-02-21 10:25:33 +01:00
Kconfig.freezer
…
Kconfig.hz
kernel: Fix "select" wording on HZ_250 description
2025-02-21 09:20:30 +01:00
Kconfig.kexec
crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
2024-11-14 22:43:48 -08:00
Kconfig.locks
…
Kconfig.preempt
sched: No PREEMPT_RT=y for all{yes,mod}config
2024-11-07 15:25:05 +01:00
kcov.c
kcov: mark in_softirq_really() as __always_inline
2024-12-30 17:59:08 -08:00
kexec_core.c
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
kexec_elf.c
kexec: initialize ELF lowest address to ULONG_MAX
2025-03-16 22:30:47 -07:00
kexec_file.c
crash: let arch decide usable memory range in reserved area
2025-03-16 22:30:47 -07:00
kexec_internal.h
kexec: use atomic_try_cmpxchg_acquire() in kexec_trylock()
2024-09-01 20:43:23 -07:00
kexec.c
…
kheaders.c
kheaders: Simplify attribute through __BIN_ATTR_SIMPLE_RO()
2024-12-24 09:46:49 +01:00
kprobes.c
kprobes: Use RCU in all users of __module_text_address().
2025-03-10 11:54:46 +01:00
ksyms_common.c
…
ksysfs.c
kernel/ksysfs.c: simplify bin_attribute definition
2025-01-07 16:59:15 +01:00
kthread.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
latencytop.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
Makefile
tracing: Disable branch profiling in noinstr code
2025-03-22 09:49:26 +01:00
module_signature.c
…
notifier.c
reboot: move reboot_notifier_list to kernel/reboot.c
2024-11-05 17:12:31 -08:00
nsproxy.c
fdget(), trivial conversions
2024-11-03 01:28:06 -05:00
padata.c
padata: switch padata_find_next() to using cpumask_next_wrap()
2025-02-24 16:37:23 -05:00
panic.c
Merge tag 'objtool-urgent-2025-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-04-02 10:30:10 -07:00
params.c
params: Annotate struct module_param_attrs with __counted_by()
2025-03-10 11:54:46 +01:00
pid_namespace.c
pid: Do not set pid_max in new pid namespaces
2025-03-06 10:18:36 +01:00
pid_sysctl.h
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
pid.c
Merge tag 'kernel-6.15-rc1.tasklist_lock' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-03-24 13:39:27 -07:00
profile.c
profiling: remove profile=sleep support
2024-08-04 13:36:28 -07:00
ptrace.c
…
range.c
…
reboot.c
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
regset.c
…
relay.c
relay: use kasprintf() instead of fixed buffer formatting
2025-03-21 22:10:05 -07:00
resource_kunit.c
resource, kunit: fix user-after-free in resource_test_region_intersects()
2024-10-09 12:47:19 -07:00
resource.c
resource: replace open coded variant of DEFINE_RES()
2025-03-21 22:10:05 -07:00
rseq.c
rseq: Fix segfault on registration when rseq_cs is non-zero
2025-03-06 22:26:49 +01:00
scftorture.c
scftorture: Handle NULL argument passed to scf_add_to_free_list().
2024-11-14 16:09:51 -08:00
scs.c
…
seccomp.c
seccomp: avoid the lock trip seccomp_filter_release in common case
2025-02-24 11:17:10 -08:00
signal.c
Merge tag 'vfs-6.15-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-04-02 16:05:21 -07:00
smp.c
Merge tag 'csd-lock.2025.01.28a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
2025-01-28 11:34:03 -08:00
smpboot.c
…
smpboot.h
…
softirq.c
lockdep: Fix wait context check on softirq for PREEMPT_RT
2025-03-25 10:46:44 +01:00
stackleak.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
stacktrace.c
…
static_call_inline.c
Merge tag 'modules-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
2025-03-30 15:44:36 -07:00
static_call.c
…
stop_machine.c
stop-machine: Add comment for rcu_momentary_eqs()
2025-03-11 10:15:52 -07:00
sys_ni.c
Merge tag 'probes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2024-07-18 12:19:20 -07:00
sys.c
Merge tag 'timers-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-03-25 10:33:23 -07:00
sysctl-test.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
sysctl.c
Merge tag 's390-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2025-03-29 11:59:43 -07:00
task_work.c
kasan: make kasan_record_aux_stack_noalloc() the default behaviour
2025-01-13 22:40:36 -08:00
taskstats.c
fdget(), more trivial conversions
2024-11-03 01:28:06 -05:00
torture.c
torture: Add get_torture_init_jiffies() for test-start time
2025-02-05 07:14:24 -08:00
tracepoint.c
tracepoint: Print the function symbol when tracepoint_debug is set
2025-03-21 15:30:10 -04:00
tsacct.c
tsacct: replace strncpy() with strscpy()
2024-07-12 16:39:53 -07:00
ucount.c
ucount: use rcuref_t for reference counting
2025-03-16 22:30:50 -07:00
uid16.c
…
uid16.h
…
umh.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
up.c
…
user_namespace.c
uidgid: add map_id_range_up()
2025-02-12 12:12:27 +01:00
user-return-notifier.c
…
user.c
uidgid: make sure we fit into one cacheline
2024-09-12 12:16:09 +02:00
usermode_driver.c
…
utsname_sysctl.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
utsname.c
…
vhost_task.c
vhost_task: fix vhost_task_create() documentation
2025-04-18 10:08:11 -04:00
vmcore_info.c
mm: support only one page_type per page
2024-09-03 21:15:43 -07:00
watch_queue.c
Merge tag 'vfs-6.15-rc1.pipe' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-03-24 09:52:37 -07:00
watchdog_buddy.c
…
watchdog_perf.c
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
watchdog.c
Merge tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-03-25 10:54:15 -07:00
workqueue_internal.h
…
workqueue.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00