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Daniel Jordan 625b940a28 padata: fix uninitialized return value in padata_replace() 
[ Upstream commit 41ccdbfd54 ]

According to Geert's report[0],

  kernel/padata.c: warning: 'err' may be used uninitialized in this
    function [-Wuninitialized]:  => 539:2

Warning is seen only with older compilers on certain archs.  The
runtime effect is potentially returning garbage down the stack when
padata's cpumasks are modified before any pcrypt requests have run.

Simplest fix is to initialize err to the success value.

[0] http://lkml.kernel.org/r/20200210135506.11536-1-geert@linux-m68k.org

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: bbefa1dd6a ("crypto: pcrypt - Avoid deadlock by using per-instance padata queues")
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-08 09:08:40 +02:00
..
bpf
bpf: Explicitly memset some bpf info structures declared on the stack
2020-04-02 15:11:01 +02:00
cgroup
cgroup1: don't call release_agent when it is ""
2020-04-01 11:01:51 +02:00
configs
…
debug
kgdb: don't use a notifier to enter kgdb at panic; call directly
2019-09-25 17:51:40 -07:00
dma
dma-direct: don't check swiotlb=force in dma_direct_map_resource
2020-01-26 10:01:08 +01:00
events
perf/core: Fix mlock accounting in perf_mmap()
2020-02-11 04:35:54 -08:00
gcov
Revert "um: Enable CONFIG_CONSTRUCTORS"
2020-02-01 09:34:53 +00:00
irq
genirq: Fix reference leaks on irq affinity notifiers
2020-04-01 11:02:04 +02:00
livepatch
…
locking
locking/lockdep: Fix lockdep_stats indentation problem
2020-03-05 16:43:51 +01:00
power
ACPI: PM: s2idle: Avoid possible race related to the EC GPE
2020-02-19 19:52:56 +01:00
printk
printk: fix exclusive_console replaying
2020-02-24 08:36:24 +01:00
rcu
rcu: Allow only one expedited GP to run concurrently with wakeups
2020-03-05 16:43:50 +01:00
sched
sched/fair: Optimize select_idle_cpu
2020-03-05 16:43:48 +01:00
time
lib/vdso: Update coarse timekeeper unconditionally
2020-03-05 16:43:49 +01:00
trace
tracing: Fix number printing bug in print_synth_event()
2020-03-21 08:11:49 +01:00
.gitignore
…
acct.c
…
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
audit_get_nd(): don't unlock parent too early
2019-11-10 11:56:55 -05:00
audit.c
audit: always check the netlink payload length in audit_receive_msg()
2020-03-05 16:43:42 +01:00
audit.h
…
auditfilter.c
audit: fix error handling in audit_data_to_entry()
2020-03-05 16:43:42 +01:00
auditsc.c
…
backtracetest.c
…
bounds.c
…
capability.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu/hotplug, stop_machine: Fix stop_machine vs hotplug order
2020-02-24 08:36:23 +01:00
crash_core.c
…
crash_dump.c
…
cred.c
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
delayacct.c
…
dma.c
…
elfcore.c
kernel/elfcore.c: include proper prototypes
2019-09-25 17:51:39 -07:00
exec_domain.c
…
exit.c
exit: panic before exit_mm() on global init exit
2020-01-09 10:20:01 +01:00
extable.c
…
fail_function.c
…
fork.c
mm: fork: fix kernel_stack memcg stats for various stack implementations
2020-04-01 11:02:03 +02:00
freezer.c
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex.c
futex: Unbreak futex hashing
2020-03-25 08:25:58 +01:00
gen_kheaders.sh
kheaders: substituting --sort in archive creation
2019-10-17 09:08:19 +09:00
groups.c
…
hung_task.c
…
iomem.c
…
irq_work.c
…
jump_label.c
…
kallsyms.c
…
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
…
kexec_core.c
kexec: bail out upon SIGKILL when allocating memory.
2019-09-25 17:51:40 -07:00
kexec_elf.c
…
kexec_file.c
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kmod.c
…
kprobes.c
kprobes: Fix optimize_kprobe()/unoptimize_kprobe() cancellation logic
2020-03-12 13:00:09 +01:00
ksysfs.c
…
kthread.c
kthread: make __kthread_queue_delayed_work static
2019-10-16 09:20:58 -07:00
latencytop.c
…
Makefile
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
2019-09-27 19:37:27 -07:00
module_signature.c
…
module_signing.c
…
module-internal.h
…
module.c
module: avoid setting info->name early in case we can fall back to info->mod->name
2020-02-24 08:36:54 +01:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-03-25 08:25:58 +01:00
nsproxy.c
…
padata.c
padata: fix uninitialized return value in padata_replace()
2020-04-08 09:08:40 +02:00
panic.c
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
params.c
…
pid_namespace.c
…
pid.c
…
profile.c
…
ptrace.c
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:22:36 +01:00
range.c
…
reboot.c
…
relay.c
…
resource.c
mm/memory_hotplug.c: use PFN_UP / PFN_DOWN in walk_system_ram_range()
2019-09-24 15:54:09 -07:00
rseq.c
…
seccomp.c
seccomp: Check that seccomp_notif is zeroed out by the user
2020-01-09 10:19:57 +01:00
signal.c
signal: avoid double atomic counter increments for user accounting
2020-03-21 08:11:53 +01:00
smp.c
…
smpboot.c
…
smpboot.h
…
softirq.c
…
stackleak.c
…
stacktrace.c
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine.c
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
sys_ni.c
…
sys.c
…
sysctl_binary.c
…
sysctl.c
kernel: sysctl: make drop_caches write-only
2020-01-04 19:18:32 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
test_kprobes.c
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torture.c
…
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
…
user-return-notifier.c
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user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
…
watchdog.c
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-24 08:36:52 +01:00
workqueue_internal.h
…
workqueue.c
workqueue: don't use wq_select_unbound_cpu() for bound works
2020-03-18 07:17:50 +01:00