Fedor Pchelkin 54a66f249c dma-mapping: benchmark: fix up kthread-related error handling ...

[ Upstream commit bb9025f443 ]

kthread creation failure is invalidly handled inside do_map_benchmark().
The put_task_struct() calls on the error path are supposed to balance the
get_task_struct() calls which only happen after all the kthreads are
successfully created. Rollback using kthread_stop() for already created
kthreads in case of such failure.

In normal situation call kthread_stop_put() to gracefully stop kthreads
and put their task refcounts. This should be done for all started
kthreads.

Found by Linux Verification Center (linuxtesting.org).

Fixes: 65789daa80 ("dma-mapping: add benchmark support for streaming DMA APIs")
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-06-12 11:39:46 +02:00

..

bpf

bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE

2024-05-30 09:44:28 +02:00

cgroup

sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level

2024-05-30 09:45:03 +02:00

configs

configs/hardening: Disable CONFIG_UBSAN_SIGNED_WRAP

2024-04-15 11:08:24 -07:00

debug

kdb: Fix a potential buffer overflow in kdb_local()

2024-01-17 17:19:06 +00:00

dma

dma-mapping: benchmark: fix up kthread-related error handling

2024-06-12 11:39:46 +02:00

entry

entry: Respect changes to system call number by trace_sys_enter()

2024-03-12 13:23:32 +01:00

events

Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-03-14 17:43:30 -07:00

futex

futex: Prevent the reuse of stale pi_state

2024-01-19 12:58:17 +01:00

gcov

gcov: annotate struct gcov_iterator with __counted_by

2023-10-18 14:43:22 -07:00

irq

genirq: Introduce IRQF_COND_ONESHOT and use it in pinctrl-amd

2024-03-25 23:45:21 +01:00

kcsan

mm: delete checks for xor_unlock_is_negative_byte()

2023-10-18 14:34:17 -07:00

livepatch

livepatch: Fix missing newline character in klp_resolve_symbols()

2023-09-20 11:24:18 +02:00

locking

locking/rtmutex: Use try_cmpxchg_relaxed() in mark_rt_mutex_waiters()

2024-03-01 13:02:05 +01:00

module

Merge tag 'v6.9-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2024-03-25 10:48:23 -07:00

power

PM: s2idle: Make sure CPUs will wakeup directly on resume

2024-04-08 15:36:54 +02:00

printk

Merge tag 'printk-for-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2024-03-26 09:25:57 -07:00

rcu

rcu: Fix buffer overflow in print_cpu_stall_info()

2024-05-30 09:44:06 +02:00

sched

sched/core: Fix incorrect initialization of the 'burst' parameter in cpu_max_write()

2024-05-30 09:45:03 +02:00

time

timers/migration: Prevent out of bounds access on failure

2024-05-08 11:19:43 +02:00

trace

tracing/probes: fix error check in parse_btf_field()

2024-06-12 11:39:45 +02:00

.gitignore

…

acct.c

fs: rename __mnt_{want,drop}_write*() helpers

2023-09-11 15:05:50 +02:00

async.c

async: Use a dedicated unbound workqueue with raised min_active

2024-02-09 11:13:59 -10:00

audit_fsnotify.c

audit: fix potential double free on error path from fsnotify_add_inode_mark

2022-08-22 18:50:06 -04:00

audit_tree.c

Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-11-02 20:53:31 -10:00

audit_watch.c

audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()

2023-11-14 17:34:27 -05:00

audit.c

audit: use KMEM_CACHE() instead of kmem_cache_create()

2024-01-25 10:12:22 -05:00

audit.h

audit: correct audit_filter_inodes() definition

2023-07-21 12:17:25 -04:00

auditfilter.c

audit: remove unnecessary assignment in audit_dupe_lsm_field()

2024-01-25 09:59:27 -05:00

auditsc.c

audit,io_uring: io_uring openat triggers audit reference count underflow

2023-10-13 18:34:46 +02:00

backtracetest.c

backtracetest: Convert from tasklet to BH workqueue

2024-02-05 13:22:34 -10:00

bounds.c

bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS

2024-04-29 08:29:29 -07:00

capability.c

lsm: constify the 'target' parameter in security_capget()

2023-08-08 16:48:47 -04:00

cfi.c

cfi: Switch to -fsanitize=kcfi

2022-09-26 10:13:13 -07:00

compat.c

sched_getaffinity: don't assume 'cpumask_size()' is fully initialized

2023-03-14 19:32:38 -07:00

configs.c

…

context_tracking.c

context_tracking: Fix kerneldoc headers for __ct_user_{enter,exit}()

2024-02-14 07:53:50 -08:00

cpu_pm.c

cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()

2023-01-13 11:48:15 +01:00

cpu.c

cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n

2024-04-25 15:47:39 +02:00

crash_core.c

crash: split crash dumping code out from kexec_core.c

2024-02-23 17:48:22 -08:00

crash_reserve.c

crash: use macro to add crashk_res into iomem early for specific arch

2024-03-26 11:14:12 -07:00

cred.c

cred: Use KMEM_CACHE() instead of kmem_cache_create()

2024-02-23 17:33:31 -05:00

delayacct.c

delayacct: track delays from IRQ/SOFTIRQ

2023-04-18 16:39:34 -07:00

dma.c

…

elfcorehdr.c

crash: remove dependency of FA_DUMP on CRASH_DUMP

2024-02-23 17:48:22 -08:00

exec_domain.c

…

exit.c

Merge tag 'vfs-6.9.pidfd' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2024-03-11 10:21:06 -07:00

exit.h

exit: add internal include file with helpers

2023-09-21 12:03:50 -06:00

extable.c

context_tracking: Take NMI eqs entrypoints over RCU

2022-07-05 13:32:59 -07:00

fail_function.c

kernel/fail_function: fix memory leak with using debugfs_lookup()

2023-02-08 13:36:22 +01:00

fork.c

fork: defer linking file vma until vma is fully initialized

2024-04-16 15:39:51 -07:00

freezer.c

Merge tag 'v6.7-rc6' into sched/core, to pick up fixes

2023-12-23 15:52:13 +01:00

gen_kheaders.sh

Revert "kheaders: substituting --sort in archive creation"

2023-05-28 16:20:21 +09:00

groups.c

groups: Convert group_info.usage to refcount_t

2023-09-29 11:28:39 -07:00

hung_task.c

kernel/hung_task.c: export sysctl_hung_task_timeout_secs

2024-03-13 21:22:04 -04:00

iomem.c

kernel/iomem.c: remove __weak ioremap_cache helper

2023-08-21 13:37:28 -07:00

irq_work.c

trace: Add trace_ipi_send_cpu()

2023-03-24 11:01:29 +01:00

jump_label.c

jump_label: Prevent key->enabled int overflow

2022-12-01 15:53:05 -08:00

kallsyms_internal.h

kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]

2022-11-12 18:47:36 -08:00

kallsyms_selftest.c

mm/vmalloc: remove vmap_area_list

2024-02-23 17:48:19 -08:00

kallsyms_selftest.h

kallsyms: Add self-test facility

2022-11-15 00:42:02 -08:00

kallsyms.c

kallsyms: Change func signature for cleanup_symbol_name()

2023-08-25 15:00:36 -07:00

kcmp.c

file: convert to SLAB_TYPESAFE_BY_RCU

2023-10-19 11:02:48 +02:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.kexec

crash: clean up kdump related config items

2024-02-23 17:48:22 -08:00

Kconfig.locks

…

Kconfig.preempt

…

kcov.c

kcov: add prototypes for helper functions

2023-06-09 17:44:17 -07:00

kexec_core.c

Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-03-14 18:03:09 -07:00

kexec_elf.c

…

kexec_file.c

arm64, crash: wrap crash dumping code into crash related ifdefs

2024-02-23 17:48:23 -08:00

kexec_internal.h

crash: remove dependency of FA_DUMP on CRASH_DUMP

2024-02-23 17:48:22 -08:00

kexec.c

crash: split crash dumping code out from kexec_core.c

2024-02-23 17:48:22 -08:00

kheaders.c

kheaders: Use array declaration instead of char

2023-03-24 20:10:59 -07:00

kprobes.c

kprobes: Fix possible use-after-free issue on kprobe registration

2024-04-10 23:35:51 +09:00

ksyms_common.c

kallsyms: make kallsyms_show_value() as generic function

2023-06-08 12:27:20 -07:00

ksysfs.c

Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2024-03-21 13:34:15 -07:00

kthread.c

Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-11-02 20:53:31 -10:00

latencytop.c

latencytop: use the last element of latency_record of system

2022-09-11 21:55:12 -07:00

Makefile

crash: split crash dumping code out from kexec_core.c

2024-02-23 17:48:22 -08:00

module_signature.c

…

notifier.c

notifiers: add tracepoints to the notifiers infrastructure

2023-04-08 13:45:38 -07:00

nsproxy.c

pidfd: add pidfs

2024-03-01 12:23:37 +01:00

numa.c

kernel/numa.c: Move logging out of numa.h

2023-12-20 19:26:30 -05:00

padata.c

Author: Gang Li padata: dispatch works on

2024-03-06 13:04:17 -08:00

panic.c

Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-03-14 18:03:09 -07:00

params.c

params: Fix multi-line comment style

2023-12-01 09:51:44 -08:00

pid_namespace.c

wait: Remove uapi header file from main header file

2023-12-20 19:26:31 -05:00

pid_sysctl.h

memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy

2023-08-21 13:37:59 -07:00

pid.c

pidfs: remove config option

2024-03-13 12:53:53 -07:00

profile.c

profiling: Remove create_prof_cpu_mask().

2024-04-27 11:17:48 -07:00

ptrace.c

ptrace_attach: shift send(SIGSTOP) into ptrace_set_stopped()

2024-02-22 15:38:52 -08:00

range.c

…

reboot.c

Merge tag 'thermal-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2024-01-09 16:20:17 -08:00

regset.c

…

relay.c

kernel: relay: remove relay_file_splice_read dead code, doesn't work

2023-12-29 12:22:27 -08:00

resource_kunit.c

…

resource.c

Merge tag 'mm-nonmm-stable-2024-01-09-10-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-01-09 11:46:20 -08:00

rseq.c

rseq: Extend struct rseq with per-memory-map concurrency ID

2022-12-27 12:52:12 +01:00

scftorture.c

scftorture: Pause testing after memory-allocation failure

2023-07-14 15:02:57 -07:00

scs.c

scs: add support for dynamic shadow call stacks

2022-11-09 18:06:35 +00:00

seccomp.c

file: remove __receive_fd()

2023-12-12 14:24:14 +01:00

signal.c

Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-03-14 18:03:09 -07:00

smp.c

Merge tag 'csd-lock.2023.10.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

2023-10-30 17:56:53 -10:00

smpboot.c

kthread: add kthread_stop_put

2023-10-04 10:41:57 -07:00

smpboot.h

…

softirq.c

softirq: Fix suspicious RCU usage in __do_softirq()

2024-04-29 05:03:51 +02:00

stackleak.c

stackleak: allow to specify arch specific stackleak poison function

2023-04-20 11:36:35 +02:00

stacktrace.c

stacktrace: fix kernel-doc typo

2023-12-29 12:22:29 -08:00

static_call_inline.c

static_call: Add call depth tracking support

2022-10-17 16:41:16 +02:00

static_call.c

…

stop_machine.c

…

sys_ni.c

Merge tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

2024-01-09 12:57:46 -08:00

sys.c

prctl: generalize PR_SET_MDWE support check to be per-arch

2024-03-26 11:07:22 -07:00

sysctl-test.c

kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}

2022-09-08 16:56:45 -07:00

sysctl.c

tracing: Support to dump instance traces by ftrace_dump_on_oops

2024-03-18 10:33:06 -04:00

task_work.c

task_work: add kerneldoc annotation for 'data' argument

2023-09-19 13:21:32 -07:00

taskstats.c

taskstats: fill_stats_for_tgid: use for_each_thread()

2023-10-04 10:41:57 -07:00

torture.c

torture: Print out torture module parameters

2023-09-24 17:24:01 +02:00

tracepoint.c

tracepoint: Allow livepatch module add trace event

2023-02-18 14:34:36 -05:00

tsacct.c

…

ucount.c

sysctl: Add size to register_sysctl

2023-08-15 15:26:17 -07:00

uid16.c

…

uid16.h

…

umh.c

sysctl: fix unused proc_cap_handler() function warning

2023-06-29 15:19:43 -07:00

up.c

smp: Change function signatures to use call_single_data_t

2023-09-13 14:59:24 +02:00

user_namespace.c

user_namespace: remove unnecessary NULL values from kbuf

2024-02-22 15:38:52 -08:00

user-return-notifier.c

…

user.c

binfmt_misc: enable sandboxed mounts

2023-10-11 08:46:01 -07:00

usermode_driver.c

…

utsname_sysctl.c

utsname: simplify one-level sysctl registration for uts_kern_table

2023-04-13 11:49:35 -07:00

utsname.c

…

vhost_task.c

vhost: Fix worker hangs due to missed wake up calls

2023-06-08 15:43:09 -04:00

vmcore_info.c

mm: turn folio_test_hugetlb into a PageType

2024-04-24 19:34:26 -07:00

watch_queue.c

watch_queue: fix kcalloc() arguments order

2023-12-21 13:17:54 +01:00

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: add a weak function for an arch to detect if perf can use NMIs

2023-06-09 17:44:21 -07:00

watchdog.c

watchdog/core: remove sysctl handlers from public header

2024-03-12 13:09:23 -07:00

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: Fix divide error in wq_update_node_max_active()

2024-04-24 07:23:06 -10:00