android_kernel_motorola_sm6375/kernel
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Chen Zhongjin 248fa44cde perf: Fix possible memleak in pmu_dev_alloc()
[ Upstream commit e8d7a90c08ce963c592fb49845f2ccc606a2ac21 ]

In pmu_dev_alloc(), when dev_set_name() failed, it will goto free_dev
and call put_device(pmu->dev) to release it.
However pmu->dev->release is assigned after this, which makes warning
and memleak.
Call dev_set_name() after pmu->dev->release = pmu_dev_release to fix it.

  Device '(null)' does not have a release() function...
  WARNING: CPU: 2 PID: 441 at drivers/base/core.c:2332 device_release+0x1b9/0x240
  ...
  Call Trace:
    <TASK>
    kobject_put+0x17f/0x460
    put_device+0x20/0x30
    pmu_dev_alloc+0x152/0x400
    perf_pmu_register+0x96b/0xee0
    ...
  kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
  unreferenced object 0xffff888014759000 (size 2048):
    comm "modprobe", pid 441, jiffies 4294931444 (age 38.332s)
    backtrace:
      [<0000000005aed3b4>] kmalloc_trace+0x27/0x110
      [<000000006b38f9b8>] pmu_dev_alloc+0x50/0x400
      [<00000000735f17be>] perf_pmu_register+0x96b/0xee0
      [<00000000e38477f1>] 0xffffffffc0ad8603
      [<000000004e162216>] do_one_initcall+0xd0/0x4e0
      ...

Fixes: abe4340057 ("perf: Sysfs enumeration")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221111103653.91058-1-chenzhongjin@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:40:53 +01:00
..
bpf bpf: Ensure correct locking around vulnerable function find_vpid() 2022-10-26 13:22:24 +02:00
cgroup memcg: fix possible use-after-free in memcg_write_event_control() 2022-12-14 11:30:43 +01:00
configs
debug lockdown: also lock down previous kgdb use 2022-06-06 08:33:48 +02:00
dma dma-debug: make things less spammy under memory pressure 2022-06-22 14:11:19 +02:00
events perf: Fix possible memleak in pmu_dev_alloc() 2023-01-18 11:40:53 +01:00
gcov gcov: clang: fix the buffer overflow issue 2022-12-08 11:23:00 +01:00
irq genirq: Don't return error on missing optional irq_request_resources() 2022-08-25 11:17:29 +02:00
livepatch livepatch: fix race between fork and KLP transition 2022-10-26 13:22:18 +02:00
locking locking/lockdep: Avoid RCU-induced noinstr fail 2021-11-17 09:48:28 +01:00
power PM: hibernate: Fix mistake in kerneldoc comment 2023-01-18 11:40:53 +01:00
printk printk: fix return value of printk.devkmsg __setup handler 2022-04-15 14:18:08 +02:00
rcu rcu: Don't deboost before reporting expedited quiescent state 2022-03-28 08:46:48 +02:00
sched sched/deadline: Fix priority inheritance with multiple scheduling classes 2022-09-05 10:27:39 +02:00
time timekeeping: contribute wall clock to rng on time change 2022-08-25 11:18:15 +02:00
trace tracing/ring-buffer: Only do full wait when cpu != RING_BUFFER_ALL_CPUS 2023-01-18 11:40:46 +01:00
.gitignore kbuild: update config_data.gz only when the content of .config is changed 2021-05-11 14:04:16 +02:00
acct.c
async.c Revert "module, async: async_synchronize_full() on module init iff async is used" 2022-02-23 11:59:56 +01:00
audit.c audit: improve audit queue handling when "audit=1" on cmdline 2022-02-08 18:24:26 +01:00
audit.h audit: log AUDIT_TIME_* records only from rules 2022-04-15 14:18:04 +02:00
audit_fsnotify.c audit: fix potential double free on error path from fsnotify_add_inode_mark 2022-09-05 10:27:38 +02:00
audit_tree.c audit: move put_tree() to avoid trim_trees refcount underflow and UAF 2021-09-03 10:08:16 +02:00
audit_watch.c
auditfilter.c
auditsc.c audit: log AUDIT_TIME_* records only from rules 2022-04-15 14:18:04 +02:00
backtracetest.c
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu.c random: clear fast pool, crng, and batches in cpuhp bring up 2022-06-22 14:11:12 +02:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c don't dump the threads that had been already exiting when zapped. 2020-11-18 19:20:31 +01:00
extable.c
fail_function.c fail_function: Remove a redundant mutex unlock 2020-11-24 13:29:18 +01:00
fork.c copy_process(): Move fd_install() out of sighand->siglock critical section 2022-02-23 12:00:00 +01:00
freezer.c
futex.c mm, futex: fix shared futex pgoff on shmem huge page 2021-06-30 08:47:55 -04:00
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:44:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c kernel: kexec: remove the lock operation of system_transition_mutex 2021-02-03 23:25:56 +01:00
kexec_elf.c
kexec_file.c kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add] 2022-07-02 16:28:50 +02:00
kexec_internal.h
kheaders.c
kmod.c
kprobes.c kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case 2022-11-25 17:42:21 +01:00
ksysfs.c
kthread.c kthread: Fix PF_KTHREAD vs to_kthread() race 2021-09-12 08:56:39 +02:00
latencytop.c
Makefile kbuild: update config_data.gz only when the content of .config is changed 2021-05-11 14:04:16 +02:00
module-internal.h
module.c module/ftrace: handle patchable-function-entry 2022-02-23 11:59:56 +01:00
module_signature.c module: harden ELF info handling 2021-04-07 14:47:38 +02:00
module_signing.c module: harden ELF info handling 2021-04-07 14:47:38 +02:00
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c memcg: enable accounting for pids in nested pid namespaces 2021-09-22 12:26:37 +02:00
profile.c profiling: fix shift too large makes kernel panic 2022-08-25 11:18:02 +02:00
ptrace.c ptrace: Reimplement PTRACE_KILL by always sending SIGKILL 2022-06-14 18:11:24 +02:00
range.c
reboot.c reboot: fix overflow parsing reboot cpu number 2020-11-18 19:20:30 +01:00
relay.c
resource.c
rseq.c
seccomp.c seccomp: Invalidate seccomp mode to catch death failures 2022-02-16 12:52:53 +01:00
signal.c signal handling: don't use BUG_ON() for debugging 2022-07-21 20:59:27 +02:00
smp.c smp: Fix offline cpu check in flush_smp_call_function_queue() 2022-04-20 09:19:39 +02:00
smpboot.c kthread: Extract KTHREAD_IS_PER_CPU 2021-02-07 15:35:49 +01:00
smpboot.h
softirq.c
stackleak.c
stacktrace.c
stop_machine.c
sys.c prctl: allow to setup brk for et_dyn executables 2021-09-26 14:07:08 +02:00
sys_ni.c kernel/sys_ni: add compat entry for fadvise64_64 2022-09-05 10:27:38 +02:00
sysctl-test.c
sysctl.c proc: proc_skip_spaces() shouldn't think it is working on C strings 2022-12-08 11:23:06 +01:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing 2021-07-14 16:53:08 +02:00
tsacct.c taskstats: Cleanup the use of task->exit_code 2022-02-23 11:59:57 +01:00
ucount.c
uid16.c
uid16.h
umh.c usermodehelper: reset umask to default before executing user process 2020-10-14 10:32:58 +02:00
up.c smp: Fix smp_call_function_single_async prototype 2021-05-14 09:44:33 +02:00
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c watchdog: export lockup_detector_reconfigure 2022-08-25 11:18:37 +02:00
watchdog_hld.c
workqueue.c workqueue: don't skip lockdep work dependency in cancel_work_sync() 2022-09-28 11:04:09 +02:00
workqueue_internal.h