Kuniyuki Iwashima a5ee448d38 sysctl: Fix data races in proc_doulongvec_minmax(). ...

[ Upstream commit c31bcc8fb8 ]

A sysctl variable is accessed concurrently, and there is always a chance
of data-race.  So, all readers and writers need some basic protection to
avoid load/store-tearing.

This patch changes proc_doulongvec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side.  For now,
proc_doulongvec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-07-21 21:20:07 +02:00

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bpf

bpf: Fix insufficient bounds propagation from adjust_scalar_min_max_vals

2022-07-12 16:32:17 +02:00

cgroup

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2022-07-21 21:20:00 +02:00

configs

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debug

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dma

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entry

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events

perf: Fix sys_perf_event_open() race against self

2022-05-25 09:17:55 +02:00

gcov

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irq

random: remove unused irq_flags argument from add_interrupt_randomness()

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livepatch

livepatch: Fix build failure on 32 bits processors

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locking

locking/lockdep: Iterate lock_classes directly when reading lockdep files

2022-04-08 14:40:32 +02:00

power

PM: suspend: fix return value of __setup handler

2022-04-08 14:40:01 +02:00

printk

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rcu

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sched

sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq

2022-06-09 10:21:02 +02:00

time

fix race between exit_itimers() and /proc/pid/timers

2022-07-21 21:19:59 +02:00

trace

tracing/histograms: Fix memory leak problem

2022-07-21 21:19:59 +02:00

.gitignore

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acct.c

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async.c

Revert "module, async: async_synchronize_full() on module init iff async is used"

2022-02-23 12:01:00 +01:00

audit_fsnotify.c

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audit_tree.c

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audit_watch.c

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audit.c

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2022-02-08 18:30:34 +01:00

audit.h

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auditfilter.c

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auditsc.c

audit: log AUDIT_TIME_* records only from rules

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backtracetest.c

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bounds.c

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capability.c

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compat.c

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configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

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2022-05-30 09:33:36 +02:00

crash_core.c

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crash_dump.c

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cred.c

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delayacct.c

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dma.c

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exec_domain.c

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exit.c

fix race between exit_itimers() and /proc/pid/timers

2022-07-21 21:19:59 +02:00

extable.c

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fail_function.c

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fork.c

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freezer.c

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futex.c

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gen_kheaders.sh

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groups.c

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hung_task.c

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iomem.c

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irq_work.c

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jump_label.c

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kallsyms.c

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kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kcov.c

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kexec_core.c

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kexec_elf.c

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kexec_file.c

kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]

2022-06-09 10:21:26 +02:00

kexec_internal.h

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kexec.c

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kheaders.c

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kmod.c

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kprobes.c

kprobes: Limit max data_size of the kretprobe instances

2021-12-08 09:03:20 +01:00

ksysfs.c

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kthread.c

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latencytop.c

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Makefile

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module_signature.c

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module_signing.c

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module-internal.h

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module.c

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2022-05-25 09:18:02 +02:00

notifier.c

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nsproxy.c

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padata.c

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panic.c

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params.c

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pid_namespace.c

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pid.c

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profile.c

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ptrace.c

ptrace: Reimplement PTRACE_KILL by always sending SIGKILL

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range.c

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reboot.c

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regset.c

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relay.c

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resource.c

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rseq.c

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scftorture.c

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scs.c

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seccomp.c

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signal.c

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smp.c

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smpboot.c

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smpboot.h

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softirq.c

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stackleak.c

gcc-plugins/stackleak: Use noinstr in favor of notrace

2022-02-23 12:01:00 +01:00

stacktrace.c

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static_call.c

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stop_machine.c

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sys_ni.c

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sys.c

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sysctl-test.c

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sysctl.c

sysctl: Fix data races in proc_doulongvec_minmax().

2022-07-21 21:20:07 +02:00

task_work.c

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taskstats.c

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test_kprobes.c

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torture.c

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tracepoint.c

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tsacct.c

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ucount.c

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uid16.c

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uid16.h

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umh.c

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up.c

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user_namespace.c

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user-return-notifier.c

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user.c

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usermode_driver.c

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utsname_sysctl.c

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utsname.c

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watch_queue.c

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watchdog_hld.c

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watchdog.c

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workqueue_internal.h

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workqueue.c

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