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torvalds-linux/kernel
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Yonghong Song e1afb70252 bpf: check signal validity in nmi for bpf_send_signal() helper 
Commit 8b401f9ed244 ("bpf: implement bpf_send_signal() helper")
introduced bpf_send_signal() helper. If the context is nmi,
the sending signal work needs to be deferred to irq_work.
If the signal is invalid, the error will appear in irq_work
and it won't be propagated to user.

This patch did an early check in the helper itself to notify
user invalid signal, as suggested by Daniel.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-28 10:51:33 +02:00
..
bpf
bpf: verifier: randomize high 32-bit when BPF_F_TEST_RND_HI32 is set
2019-05-24 18:58:37 -07:00
cgroup
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configs
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debug
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dma
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2019-05-21 10:50:46 +02:00
events
mm/mmu_notifier: use correct mmu_notifier events for each invalidation
2019-05-14 09:47:49 -07:00
gcov
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irq
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2019-05-21 10:50:46 +02:00
livepatch
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2019-05-21 11:28:45 +02:00
locking
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2019-05-21 11:28:40 +02:00
power
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printk
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rcu
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sched
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time
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2019-05-21 10:50:46 +02:00
trace
bpf: check signal validity in nmi for bpf_send_signal() helper
2019-05-28 10:51:33 +02:00
.gitignore
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
acct.c
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async.c
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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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audit.h
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auditfilter.c
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:03:32 -07:00
auditsc.c
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:03:32 -07:00
backtracetest.c
backtrace-test: Simplify stack trace handling
2019-04-29 12:37:47 +02:00
bounds.c
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capability.c
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compat.c
kernel/compat.c: mark expected switch fall-throughs
2019-05-15 08:16:14 -07:00
configs.c
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context_tracking.c
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2019-05-21 10:50:45 +02:00
cpu_pm.c
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cpu.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 14:50:46 -07:00
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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2019-05-21 11:52:39 +02:00
dma.c
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elfcore.c
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exec_domain.c
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exit.c
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extable.c
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fail_function.c
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fork.c
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2019-05-21 10:50:45 +02:00
freezer.c
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2019-05-21 10:50:45 +02:00
futex.c
mm/gup: change GUP fast to use flags rather than a write 'bool'
2019-05-14 09:47:46 -07:00
gen_ikh_data.sh
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
groups.c
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hung_task.c
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2019-05-21 10:50:45 +02:00
iomem.c
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irq_work.c
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2019-05-21 10:50:45 +02:00
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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2019-05-21 10:50:46 +02:00
kcov.c
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kexec_core.c
power/suspend: Add function to disable secondaries for suspend
2019-05-03 19:42:41 +02:00
kexec_file.c
mm: memblock: make keeping memblock memory opt-in rather than opt-out
2019-05-14 09:47:50 -07:00
kexec_internal.h
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kexec.c
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kheaders.c
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
kmod.c
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kprobes.c
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ksysfs.c
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kthread.c
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2019-05-21 10:50:45 +02:00
latencytop.c
kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing
2019-05-14 19:52:49 -07:00
Makefile
kernel/Makefile: don't assume that kernel/gen_ikh_data.sh is executable
2019-05-14 19:52:47 -07:00
memremap.c
kernel/memremap.c: remove the unused device_private_entry_fault() export
2019-05-14 09:47:51 -07:00
module_signing.c
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module-internal.h
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module.c
Modules updates for v5.2
2019-05-14 10:55:54 -07:00
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
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range.c
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reboot.c
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relay.c
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resource.c
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rseq.c
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seccomp.c
audit/stable-5.2 PR 20190507
2019-05-07 19:06:04 -07:00
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
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stacktrace.c
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2019-05-21 10:50:45 +02:00
stop_machine.c
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sys_ni.c
signal: support CLONE_PIDFD with pidfd_send_signal
2019-05-07 14:31:03 +02:00
sys.c
kernel/sys.c: prctl: fix false positive in validate_prctl_map()
2019-05-14 09:47:44 -07:00
sysctl_binary.c
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sysctl.c
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task_work.c
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taskstats.c
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test_kprobes.c
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2019-05-21 11:52:39 +02:00
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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utsname_sysctl.c
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utsname.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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