Hou Tao bda6fe3ea8 bpf: Acquire map uref in .init_seq_private for hash map iterator ... commit ef1e93d2ee upstream. bpf_iter_attach_map() acquires a map uref, and the uref may be released before or in the middle of iterating map elements. For example, the uref could be released in bpf_iter_detach_map() as part of bpf_link_release(), or could be released in bpf_map_put_with_uref() as part of bpf_map_release(). So acquiring an extra map uref in bpf_iter_init_hash_map() and releasing it in bpf_iter_fini_hash_map(). Fixes: d6c4503cc2 ("bpf: Implement bpf iterator for hash maps") Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20220810080538.1845898-3-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-08-25 11:37:55 +02:00
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bpf	bpf: Acquire map uref in .init_seq_private for hash map iterator	2022-08-25 11:37:55 +02:00
cgroup	sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed	2022-08-21 15:16:12 +02:00
configs
debug	lockdown: also lock down previous kgdb use	2022-05-30 09:33:22 +02:00
dma	dma-direct: don't over-decrypt memory	2022-06-22 14:13:20 +02:00
entry
events	perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()	2022-07-29 17:19:11 +02:00
gcov
irq	genirq: GENERIC_IRQ_IPI depends on SMP	2022-08-21 15:15:28 +02:00
kcsan
livepatch
locking	locking/lockdep: Fix lockdep_init_map_*() confusion	2022-08-21 15:15:33 +02:00
power	PM: hibernate: defer device probing when resuming from hibernation	2022-08-21 15:15:31 +02:00
printk
rcu	rcu: Make TASKS_RUDE_RCU select IRQ_WORK	2022-06-09 10:20:51 +02:00
sched	sched/fair: Fix fault in reweight_entity	2022-08-21 15:16:26 +02:00
time	timekeeping: contribute wall clock to rng on time change	2022-08-21 15:16:20 +02:00
trace	tracing: Have filter accept "common_cpu" to be consistent	2022-08-25 11:37:51 +02:00
.gitignore
acct.c
async.c
audit.c
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
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	2022-05-30 09:33:36 +02:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c	fix race between exit_itimers() and /proc/pid/timers	2022-07-21 21:19:59 +02:00
extable.c
fail_function.c
fork.c
freezer.c
futex.c
gen_kheaders.sh
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.c
kexec_core.c
kexec_elf.c
kexec_file.c	ima: force signature verification when CONFIG_KEXEC_SIG is configured	2022-07-21 21:20:11 +02:00
kexec_internal.h
kheaders.c
kmod.c
kprobes.c	kprobes: Forbid probing on trampoline and BPF code areas	2022-08-21 15:16:11 +02:00
ksysfs.c
kthread.c
latencytop.c
Makefile
module-internal.h
module.c	module: check for exit sections in layout_sections() instead of module_init_section()	2022-05-25 09:18:02 +02:00
module_signature.c
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c
profile.c	profiling: fix shift too large makes kernel panic	2022-08-21 15:16:05 +02:00
ptrace.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-06-09 10:20:49 +02:00
range.c
reboot.c
regset.c
relay.c
resource.c
rseq.c
scftorture.c	scftorture: Fix distribution of short handler delays	2022-06-09 10:21:01 +02:00
scs.c
seccomp.c
signal.c	signal handling: don't use BUG_ON() for debugging	2022-07-21 21:20:18 +02:00
smp.c
smpboot.c
smpboot.h
softirq.c
stackleak.c
stacktrace.c
static_call.c
stop_machine.c
sys.c
sys_ni.c
sysctl-test.c
sysctl.c	mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE	2022-07-21 21:20:13 +02:00
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user-return-notifier.c
user.c
user_namespace.c
usermode_driver.c
utsname.c
utsname_sysctl.c
watch_queue.c	watch_queue: Fix missing locking in add_watch_to_object()	2022-08-03 12:00:44 +02:00
watchdog.c
watchdog_hld.c
workqueue.c
workqueue_internal.h