Daniel Borkmann 5d66fa7d9e bpf: fix direct packet access for flow dissector progs ... Commit d58e468b11 ("flow_dissector: implements flow dissector BPF hook") added direct packet access for skbs in may_access_direct_pkt_data() function where this enables read and write access to the skb->data. This is buggy because without a prologue generator such as bpf_unclone_prologue() we would allow for writing into cloned skbs. Original intention might have been to only allow read access where this is not needed (similar as the flow_dissector_func_proto() indicates which enables only bpf_skb_load_bytes() as well), therefore this patch fixes it to restrict to read-only. Fixes: d58e468b11 ("flow_dissector: implements flow dissector BPF hook") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: Petar Penkov <ppenkov@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-10-25 17:02:06 -07:00
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bpf	bpf: fix direct packet access for flow dissector progs	2018-10-25 17:02:06 -07:00
cgroup	for-4.20/block-20181021	2018-10-22 17:46:08 +01:00
configs
debug
dma	dma-direct: respect DMA_ATTR_NO_WARN	2018-10-09 15:08:46 +02:00
events	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2018-10-24 11:22:39 +01:00
gcov
irq
livepatch
locking	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-10-23 13:08:53 +01:00
power	Merge branches 'acpi-pm' and 'pm-sleep'	2018-10-18 12:27:30 +02:00
printk
rcu
sched	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-10-23 17:05:28 +01:00
time	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2018-10-24 11:22:39 +01:00
trace	for-4.20/block-20181021	2018-10-22 17:46:08 +01:00
.gitignore
acct.c
async.c
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c	Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-10-23 18:43:04 +01:00
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c
freezer.c
futex_compat.c
futex.c	futex: Replace spin_is_locked() with lockdep	2018-10-09 13:19:28 +02:00
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c	Merge branch 'x86/build' into locking/core, to pick up dependent patches and unify jump-label work	2018-10-16 17:30:11 +02:00
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c	kexec: Allocate decrypted control pages for kdump if SME is enabled	2018-10-06 12:01:51 +02:00
kexec_file.c
kexec_internal.h
kexec.c
kmod.c
kprobes.c
ksysfs.c
kthread.c
latencytop.c
Makefile
memremap.c
module_signing.c
module-internal.h
module.c	jump_table: Move entries into ro_after_init region	2018-09-27 17:56:49 +02:00
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c
pid.c
profile.c
ptrace.c	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2018-10-24 11:22:39 +01:00
range.c
reboot.c
relay.c
resource.c	resource: Clean it up a bit	2018-10-09 17:25:58 +02:00
rseq.c
seccomp.c	Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-10-24 11:49:35 +01:00
signal.c	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2018-10-24 11:22:39 +01:00
smp.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c
sysctl_binary.c
sysctl.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Fix tracepoint array element size mismatch	2018-10-17 15:35:29 -04:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	umh: Add command line to user mode helpers	2018-10-22 19:37:36 -07:00
up.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
user_namespace.c
user-return-notifier.c
user.c
utsname_sysctl.c
utsname.c
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c