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Peter Zijlstra 21b07a2e60 perf/core: Fix potential NULL deref 
commit a71ef31485bb51b846e8db8b3a35e432cc15afb5 upstream.

Smatch is awesome.

Fixes: 32671e3799ca ("perf: Disallow mis-matched inherited group reads")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-08 17:26:41 +01:00
..
bpf
bpf: Fix verifier log for async callback return values
2023-10-19 23:05:34 +02:00
cgroup
cgroup: Remove duplicates in cgroup v1 tasks file
2023-10-19 23:05:37 +02:00
configs
drivers/char: remove /dev/kmem for good
2021-05-07 00:26:34 -07:00
debug
lockdown: also lock down previous kgdb use
2022-05-25 09:57:37 +02:00
dma
dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock
2023-10-06 13:18:14 +02:00
entry
entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up
2023-03-30 12:47:51 +02:00
events
perf/core: Fix potential NULL deref
2023-11-08 17:26:41 +01:00
futex
futex: Resend potentially swallowed owner death notification
2022-12-31 13:14:04 +01:00
gcov
gcov: add support for checksum field
2022-12-31 13:14:47 +01:00
irq
irqdomain: Fix mapping-creation race
2023-03-17 08:48:58 +01:00
kcsan
kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
2023-07-23 13:47:12 +02:00
livepatch
livepatch: fix race between fork and KLP transition
2022-10-26 12:34:30 +02:00
locking
locking/rtmutex: Fix task->pi_waiters integrity
2023-08-03 10:22:45 +02:00
power
workqueue: Introduce show_one_worker_pool and show_one_workqueue.
2023-05-11 23:00:35 +09:00
printk
printk: Consolidate console deferred printing
2023-09-23 11:09:59 +02:00
rcu
rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()
2023-09-23 11:09:55 +02:00
sched
Revert "kernel/sched: Modify initial boot task idle setup"
2023-10-19 23:05:38 +02:00
time
timers/nohz: Last resort update jiffies on nohz_full IRQ entry
2023-08-16 18:22:04 +02:00
trace
tracing/kprobes: Fix the description of variable length arguments
2023-11-08 17:26:41 +01:00
.gitignore
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-12-31 13:14:40 +01:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 12:03:07 +01:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-31 17:16:33 +02:00
audit_tree.c
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-08-24 18:52:36 -04:00
audit_watch.c
…
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:34:03 +01:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:23:06 +02:00
auditfilter.c
lsm: separate security_task_getsecid() into subjective and objective variants
2021-03-22 15:23:32 -04:00
auditsc.c
audit: fix possible soft lockup in __audit_inode_child()
2023-09-19 12:22:39 +02:00
backtracetest.c
…
bounds.c
…
capability.c
…
cfi.c
cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle
2022-06-22 14:22:04 +02:00
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-04-05 11:24:53 +02:00
configs.c
…
context_tracking.c
…
cpu_pm.c
PM: cpu: Make notifier chain use a raw_spinlock_t
2021-08-16 18:55:32 +02:00
cpu.c
cpu/hotplug: Do not bail-out in DYING/STARTING sections
2022-12-31 13:14:04 +01:00
crash_core.c
kernel/crash_core: suppress unknown crashkernel parameter warning
2021-12-29 12:28:49 +01:00
crash_dump.c
…
cred.c
ucounts: Base set_cred_ucounts changes on the real user
2022-02-23 12:03:20 +01:00
delayacct.c
delayacct: Add sysctl to enable at runtime
2021-05-12 11:43:25 +02:00
dma.c
…
exec_domain.c
…
exit.c
exit: Use READ_ONCE() for all oops/warn limit reads
2023-02-01 08:27:22 +01:00
extable.c
…
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 13:57:38 +01:00
fork.c
kernel/fork: beware of __put_task_struct() calling context
2023-09-23 11:09:55 +02:00
freezer.c
sched: Add get_current_state()
2021-06-18 11:43:08 +02:00
gen_kheaders.sh
kbuild: clean up ${quiet} checks in shell scripts
2021-05-27 04:01:50 +09:00
groups.c
…
hung_task.c
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
iomem.c
…
irq_work.c
irq_work: Make irq_work_queue() NMI-safe again
2021-06-10 10:00:08 +02:00
jump_label.c
jump_label: Fix jump_label_text_reserved() vs __init
2021-07-05 10:46:20 +02:00
kallsyms.c
module: add printk formats to add module build ID to stacktraces
2021-07-08 11:48:22 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/rwlock: Provide RT variant
2021-08-17 17:50:51 +02:00
Kconfig.preempt
sched/core: Disable CONFIG_SCHED_CORE by default
2021-06-28 22:43:05 +02:00
kcov.c
…
kexec_core.c
kexec: fix a memory leak in crash_shrink_memory()
2023-07-23 13:46:52 +02:00
kexec_elf.c
…
kexec_file.c
kexec: support purgatories with .text.hot sections
2023-06-21 15:59:14 +02:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kexec.c
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kheaders.c
kheaders: Use array declaration instead of char
2023-05-11 23:00:17 +09:00
kmod.c
modules: add CONFIG_MODPROBE_PATH
2021-05-07 00:26:33 -07:00
kprobes.c
kprobes: Prohibit probing on CFI preamble symbol
2023-09-19 12:22:28 +02:00
ksysfs.c
kexec: turn all kexec_mutex acquisitions into trylocks
2023-04-20 12:13:57 +02:00
kthread.c
kthread: add the helper function kthread_run_on_cpu()
2023-03-30 12:47:42 +02:00
latencytop.c
…
Makefile
futex: Move to kernel/futex/
2022-12-31 13:14:04 +01:00
module_signature.c
…
module_signing.c
…
module-internal.h
…
module.c
modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules
2023-09-06 21:28:38 +01:00
notifier.c
notifier: Remove atomic_notifier_call_chain_robust()
2021-08-16 18:55:32 +02:00
nsproxy.c
memcg: enable accounting for new namesapces and struct nsproxy
2021-09-03 09:58:12 -07:00
padata.c
padata: Fix list iterator in padata_do_serial()
2022-12-31 13:14:24 +01:00
panic.c
exit: Use READ_ONCE() for all oops/warn limit reads
2023-02-01 08:27:22 +01:00
params.c
params: lift param_set_uint_minmax to common code
2021-08-16 14:42:22 +02:00
pid_namespace.c
rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()
2023-03-10 09:39:09 +01:00
pid.c
kernel/pid.c: implement additional checks upon pidfd_create() parameters
2021-08-10 12:53:07 +02:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-17 14:24:04 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-09 10:22:29 +02:00
range.c
…
reboot.c
reboot: Add hardware protection power-off
2021-06-21 13:08:36 +01:00
regset.c
…
relay.c
relayfs: fix out-of-bounds access in relay_file_read
2023-05-11 23:00:18 +09:00
resource_kunit.c
…
resource.c
dax/kmem: Fix leak of memory-hotplug resources
2023-03-10 09:40:08 +01:00
rseq.c
rseq: Remove broken uapi field layout on 32-bit little endian
2022-04-08 14:23:10 +02:00
scftorture.c
scftorture: Forgive memory-allocation failure if KASAN
2023-09-23 11:09:55 +02:00
scs.c
scs: Release kasan vmalloc poison in scs_free process
2021-11-18 19:16:29 +01:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:56:38 +01:00
signal.c
signal handling: don't use BUG_ON() for debugging
2022-07-21 21:24:42 +02:00
smp.c
locking/csd_lock: Change csdlock_debug from early_param to __setup
2022-08-17 14:24:24 +02:00
smpboot.c
smpboot: Replace deprecated CPU-hotplug functions.
2021-08-10 14:57:42 +02:00
smpboot.h
…
softirq.c
timers/nohz: Last resort update jiffies on nohz_full IRQ entry
2023-08-16 18:22:04 +02:00
stackleak.c
gcc-plugins/stackleak: Use noinstr in favor of notrace
2022-02-23 12:03:07 +01:00
stacktrace.c
stacktrace: move filter_irq_stacks() to kernel/stacktrace.c
2022-04-13 20:59:28 +02:00
static_call_inline.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
static_call.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
stop_machine.c
stop_machine: Add caller debug info to queue_stop_cpus_work
2021-03-23 16:01:58 +01:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-31 17:16:33 +02:00
sys.c
kernel/sys.c: fix and improve control flow in __sys_setres[ug]id()
2023-04-26 13:51:52 +02:00
sysctl-test.c
kernel/sysctl-test: Remove some casts which are no-longer required
2021-06-23 16:41:24 -06:00
sysctl.c
kernel/panic: move panic sysctls to its own file
2023-02-01 08:27:20 +01:00
task_work.c
kasan: record task_work_add() call stack
2021-04-30 11:20:42 -07:00
taskstats.c
…
test_kprobes.c
…
torture.c
torture: Fix hang during kthread shutdown phase
2023-08-30 16:18:19 +02:00
tracepoint.c
tracepoint: Fix kerneldoc comments
2021-08-16 11:39:51 -04:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-01-27 11:05:35 +01:00
ucount.c
ucounts: Handle wrapping in is_ucounts_overlimit
2022-02-23 12:03:20 +01:00
uid16.c
…
uid16.h
…
umh.c
kernel/umh.c: fix some spelling mistakes
2021-05-07 00:26:34 -07:00
up.c
A set of locking related fixes and updates:
2021-05-09 13:07:03 -07:00
user_namespace.c
ucounts: Fix systemd LimitNPROC with private users regression
2022-03-08 19:12:42 +01:00
user-return-notifier.c
…
user.c
fs/epoll: use a per-cpu counter for user's watches count
2021-09-08 11:50:27 -07:00
usermode_driver.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
utsname_sysctl.c
…
utsname.c
…
watch_queue.c
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
2023-03-17 08:48:59 +01:00
watchdog_hld.c
watchdog/perf: more properly prevent false positives with turbo modes
2023-07-23 13:46:52 +02:00
watchdog.c
watchdog: export lockup_detector_reconfigure
2022-08-25 11:40:43 +02:00
workqueue_internal.h
workqueue: Assign a color to barrier work items
2021-08-17 07:49:10 -10:00
workqueue.c
workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()
2023-10-19 23:05:35 +02:00