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linux-cix/kernel
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Lizhi Xu 03041e474a tracing: Prevent bad count for tracing_cpumask_write 
commit 98feccbf32cfdde8c722bc4587aaa60ee5ac33f0 upstream.

If a large count is provided, it will trigger a warning in bitmap_parse_user.
Also check zero for it.

Cc: stable@vger.kernel.org
Fixes: 9e01c1b74c ("cpumask: convert kernel trace functions")
Link: https://lore.kernel.org/20241216073238.2573704-1-lizhi.xu@windriver.com
Reported-by: syzbot+0aecfd34fb878546f3fd@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=0aecfd34fb878546f3fd
Tested-by: syzbot+0aecfd34fb878546f3fd@syzkaller.appspotmail.com
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-02 10:32:09 +01:00
..
bpf
bpf: sync_linked_regs() must preserve subreg_def
2024-12-19 18:11:35 +01:00
cgroup
cgroup/bpf: only cgroup v2 can be attached by bpf programs
2024-12-09 10:31:54 +01:00
configs
Merge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2023-09-05 11:01:47 -07:00
debug
kdb: Use the passed prompt in kdb_position_cursor()
2024-08-03 08:54:34 +02:00
dma
dma-debug: fix a possible deadlock on radix_lock
2024-12-14 20:00:06 +01:00
entry
entry: Respect changes to system call number by trace_sys_enter()
2024-04-03 15:28:50 +02:00
events
uprobes: fix kernel info leak via "[uprobes]" vma
2024-10-10 11:58:02 +02:00
futex
futex: Don't include process MM in futex key on no-MMU
2023-11-20 11:58:53 +01:00
gcov
gcov: add support for GCC 14
2024-06-27 13:49:13 +02:00
irq
genirq/cpuhotplug: Retry with cpu_online_mask when migration fails
2024-08-19 06:04:24 +02:00
kcsan
kcsan: Turn report_filterlist_lock into a raw_spinlock
2024-12-14 19:59:59 +01:00
livepatch
livepatch: Fix missing newline character in klp_resolve_symbols()
2023-11-20 11:59:25 +01:00
locking
lockdep: fix deadlock issue between lockdep and rcu
2024-10-04 16:30:02 +02:00
module
module: Fix KCOV-ignored file name
2024-10-04 16:30:03 +02:00
power
PM: s2idle: Make sure CPUs will wakeup directly on resume
2024-04-17 11:19:26 +02:00
printk
printk: For @suppress_panic_printk check for other CPU in panic
2024-04-13 13:07:29 +02:00
rcu
rcuscale: Do a proper cleanup if kfree_scale_init() fails
2024-12-09 10:31:50 +01:00
sched
sched/deadline: Fix warning in migrate_enable for boosted tasks
2024-12-14 20:00:20 +01:00
time
ntp: Remove invalid cast in time offset math
2024-12-14 19:59:44 +01:00
trace
tracing: Prevent bad count for tracing_cpumask_write
2025-01-02 10:32:09 +01:00
.gitignore
…
acct.c
Merge tag 'audit-pr-20230829' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2023-08-30 08:17:35 -07:00
async.c
async: Introduce async_schedule_dev_nocall()
2024-01-31 16:18:49 -08:00
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()
2023-11-28 17:19:56 +00:00
audit.c
audit: Send netlink ACK before setting connection in auditd_set
2024-02-05 20:14:14 +00:00
audit.h
audit: correct audit_filter_inodes() definition
2023-07-21 12:17:25 -04:00
auditfilter.c
ima: Avoid blocking in RCU read-side critical section
2024-07-11 12:49:18 +02:00
auditsc.c
audit,io_uring: io_uring openat triggers audit reference count underflow
2023-10-13 18:34:46 +02:00
backtracetest.c
…
bounds.c
bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
2024-05-02 16:32:50 +02:00
capability.c
lsm: constify the 'target' parameter in security_capget()
2023-08-08 16:48:47 -04:00
cfi.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu/SMT: Enable SMT only if a core is online
2024-08-29 17:33:30 +02:00
crash_core.c
mm: turn folio_test_hugetlb into a PageType
2024-05-02 16:32:47 +02:00
crash_dump.c
…
cred.c
cred: get rid of CONFIG_DEBUG_CREDENTIALS
2023-12-20 17:01:51 +01:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
mm: optimize the redundant loop of mm_update_owner_next()
2024-07-11 12:49:15 +02:00
extable.c
…
fail_function.c
…
fork.c
posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone
2024-11-14 13:19:37 +01:00
freezer.c
…
gen_kheaders.sh
kheaders: explicitly define file modes for archived headers
2024-06-21 14:38:40 +02:00
groups.c
…
hung_task.c
…
iomem.c
kernel/iomem.c: remove __weak ioremap_cache helper
2023-08-21 13:37:28 -07:00
irq_work.c
…
jump_label.c
jump_label: Fix static_key_slow_dec() yet again
2024-10-10 11:57:13 +02:00
kallsyms_internal.h
…
kallsyms_selftest.c
Merge tag 'modules-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
2023-08-29 17:32:32 -07:00
kallsyms_selftest.h
…
kallsyms.c
kallsyms: Change func signature for cleanup_symbol_name()
2023-08-25 15:00:36 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.kexec
kexec: select CRYPTO from KEXEC_FILE instead of depending on it
2024-01-05 15:19:41 +01:00
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: properly check for softirq context
2024-08-14 13:58:57 +02:00
kexec_core.c
kexec: do syscore_shutdown() in kernel_kexec
2024-01-31 16:18:56 -08:00
kexec_elf.c
…
kexec_file.c
kexec_file: fix elfcorehdr digest exclusion when CONFIG_CRASH_HOTPLUG=y
2024-09-12 11:11:27 +02:00
kexec_internal.h
…
kexec.c
kernel: kexec: copy user-array safely
2023-11-28 17:19:40 +00:00
kheaders.c
…
kprobes.c
kprobes: Fix to check symbol prefixes correctly
2024-08-14 13:58:51 +02:00
ksyms_common.c
…
ksysfs.c
crash: hotplug support for kexec_load()
2023-08-24 16:25:14 -07:00
kthread.c
kthread: unpark only parked kthread
2024-10-17 15:24:37 +02:00
latencytop.c
…
Makefile
kernel/numa.c: Move logging out of numa.h
2024-06-12 11:11:50 +02:00
module_signature.c
…
notifier.c
…
nsproxy.c
nsproxy: Convert nsproxy.count to refcount_t
2023-08-21 11:29:12 -07:00
numa.c
kernel/numa.c: Move logging out of numa.h
2024-06-12 11:11:50 +02:00
padata.c
padata: use integer wrap around to prevent deadlock on seq_nr overflow
2024-10-04 16:29:56 +02:00
panic.c
panic: Flush kernel log buffer at the end
2024-04-13 13:07:29 +02:00
params.c
kernel: params: Remove unnecessary ‘0’ values from err
2023-07-10 12:47:01 -07:00
pid_namespace.c
zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING
2024-06-21 14:38:50 +02:00
pid_sysctl.h
memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy
2023-08-21 13:37:59 -07:00
pid.c
pidfd: prevent a kernel-doc warning
2023-09-19 13:21:33 -07:00
profile.c
profiling: remove profile=sleep support
2024-08-14 13:58:47 +02:00
ptrace.c
…
range.c
…
reboot.c
kernel/reboot: emergency_restart: Set correct system_state
2023-11-28 17:20:04 +00:00
regset.c
…
relay.c
kernel: relay: remove unnecessary NULL values from relay_open_buf
2023-08-18 10:18:55 -07:00
resource_kunit.c
…
resource.c
resource: fix region_intersects() vs add_memory_driver_managed()
2024-10-10 11:57:50 +02:00
rseq.c
…
scftorture.c
scftorture: Pause testing after memory-allocation failure
2023-07-14 15:02:57 -07:00
scs.c
…
seccomp.c
seccomp: Add missing kerndoc notations
2023-08-17 12:32:15 -07:00
signal.c
posix-timers: Target group sigqueue to current task only if not exiting
2024-12-09 10:33:11 +01:00
smp.c
smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()
2024-09-12 11:11:37 +02:00
smpboot.c
kthread: add kthread_stop_put
2024-06-12 11:12:52 +02:00
smpboot.h
…
softirq.c
softirq: Fix suspicious RCU usage in __do_softirq()
2024-06-12 11:11:27 +02:00
stackleak.c
…
stacktrace.c
…
static_call_inline.c
x86/static-call: provide a way to do very early static-call updates
2024-12-19 18:11:36 +01:00
static_call.c
…
stop_machine.c
…
sys_ni.c
syscalls: fix compat_sys_io_pgetevents_time64 usage
2024-07-05 09:34:04 +02:00
sys.c
prctl: generalize PR_SET_MDWE support check to be per-arch
2024-04-03 15:28:54 +02:00
sysctl-test.c
…
sysctl.c
Merge tag 'v6.5-rc1-sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
2023-06-28 16:05:21 -07:00
task_work.c
task_work: make TWA_NMI_CURRENT handling conditional on IRQ_WORK
2024-11-01 01:58:34 +01:00
taskstats.c
…
torture.c
rcutorture: Fix stuttering races and other issues
2023-11-28 17:20:08 +00:00
tracepoint.c
…
tsacct.c
…
ucount.c
ucounts: fix counter leak in inc_rlimit_get_ucounts()
2024-11-14 13:19:40 +01:00
uid16.c
…
uid16.h
…
umh.c
sysctl: fix unused proc_cap_handler() function warning
2023-06-29 15:19:43 -07:00
up.c
…
user_namespace.c
…
user-return-notifier.c
…
user.c
…
usermode_driver.c
…
utsname_sysctl.c
…
utsname.c
…
vhost_task.c
vhost_task: Handle SIGKILL by flushing work and exiting
2024-07-11 12:49:10 +02:00
watch_queue.c
kernel: watch_queue: copy user-array safely
2023-11-28 17:19:40 +00:00
watchdog_buddy.c
watchdog/hardlockup: move SMP barriers from common code to buddy code
2023-06-19 16:25:28 -07:00
watchdog_perf.c
watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
2024-08-03 08:54:29 +02:00
watchdog.c
watchdog: move softlockup_panic back to early_param
2023-11-28 17:19:57 +00:00
workqueue_internal.h
workqueue: Drop the special locking rule for worker->flags and worker_pool->flags
2023-08-07 15:57:22 -10:00
workqueue.c
workqueue: Improve scalability of workqueue watchdog touch
2024-09-12 11:11:42 +02:00