Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Alexei Starovoitov c131187db2 bpf: fix branch pruning logic ... when the verifier detects that register contains a runtime constant and it's compared with another constant it will prune exploration of the branch that is guaranteed not to be taken at runtime. This is all correct, but malicious program may be constructed in such a way that it always has a constant comparison and the other branch is never taken under any conditions. In this case such path through the program will not be explored by the verifier. It won't be taken at run-time either, but since all instructions are JITed the malicious program may cause JITs to complain about using reserved fields, etc. To fix the issue we have to track the instructions explored by the verifier and sanitize instructions that are dead at run time with NOPs. We cannot reject such dead code, since llvm generates it for valid C code, since it doesn't do as much data flow analysis as the verifier does. Fixes: 17a5267067 ("bpf: verifier (add verifier core)") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2017-11-23 10:56:35 +01:00
..
bpf	bpf: fix branch pruning logic	2017-11-23 10:56:35 +01:00
cgroup	Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2017-11-15 14:29:44 -08:00
configs
debug
events	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
gcov	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
irq	arm64 updates for 4.15	2017-11-15 10:56:56 -08:00
livepatch	Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching	2017-11-15 10:21:58 -08:00
locking	kmemcheck: remove annotations	2017-11-15 18:21:04 -08:00
power	mm: remove __GFP_COLD	2017-11-15 18:21:06 -08:00
printk	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
rcu	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
sched	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
time	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
trace	bpf: change bpf_perf_event_output arg5 type to ARG_CONST_SIZE_OR_ZERO	2017-11-22 21:40:54 +01:00
.gitignore
acct.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
async.c
audit.c	Audit: remove unused audit_log_secctx function	2017-11-10 16:08:47 -05:00
audit.h	audit/stable-4.15 PR 20171113	2017-11-15 13:28:48 -08:00
audit_fsnotify.c
audit_tree.c	Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2017-11-14 14:08:20 -08:00
audit_watch.c
auditfilter.c	audit: filter PATH records keyed on filesystem magic	2017-11-10 16:08:56 -05:00
auditsc.c	audit/stable-4.15 PR 20171113	2017-11-15 13:28:48 -08:00
backtracetest.c
bounds.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
capability.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat.c
configs.c
context_tracking.c
cpu.c	cpu/hotplug: Reset node state after operation	2017-10-21 16:11:30 +02:00
cpu_pm.c
crash_core.c	kdump: print a message in case parse_crashkernel_mem resulted in zero bytes	2017-11-17 16:10:03 -08:00
crash_dump.c
cred.c
delayacct.c
dma.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
elfcore.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exec_domain.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exit.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
extable.c	kprobes, x86/alternatives: Use text_mutex to protect smp_alt_modules	2017-11-07 12:20:09 +01:00
fork.c	pid: remove pidhash	2017-11-17 16:10:04 -08:00
freezer.c
futex.c	Merge branch 'linus' into core/urgent, to pick up dependent commits	2017-11-04 08:53:04 +01:00
futex_compat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
groups.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hung_task.c
irq_work.c	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:33:11 -08:00
jump_label.c	locking/static_keys: Improve uninitialized key warning	2017-10-19 07:49:14 +02:00
kallsyms.c	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
kcmp.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: support comparison operands collection	2017-11-17 16:10:04 -08:00
kexec.c
kexec_core.c
kexec_file.c	resource: Provide resource struct in resource walk callback	2017-11-07 15:35:57 +01:00
kexec_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
kmod.c
kprobes.c	kprobes: Disable the jprobes APIs	2017-10-20 11:02:29 +02:00
ksysfs.c
kthread.c	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
latencytop.c
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
memremap.c	memremap: add scheduling point to devm_memremap_pages	2017-10-03 17:54:25 -07:00
module-internal.h
module.c	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
module_signing.c
notifier.c
nsproxy.c
padata.c	padata: ensure padata_do_serial() runs on the correct CPU	2017-10-07 12:10:32 +08:00
panic.c	kernel/panic.c: add TAINT_AUX	2017-11-17 16:10:04 -08:00
params.c	kernel/params.c: improve STANDARD_PARAM_DEF readability	2017-10-03 17:54:26 -07:00
pid.c	pid: remove pidhash	2017-11-17 16:10:04 -08:00
pid_namespace.c	pid: remove pidhash	2017-11-17 16:10:04 -08:00
profile.c
ptrace.c
range.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
reboot.c	kernel/reboot.c: add devm_register_reboot_notifier()	2017-11-17 16:10:04 -08:00
relay.c
resource.c	x86/mm, resource: Use PAGE_KERNEL protection for ioremap of memory pages	2017-11-07 15:35:58 +01:00
seccomp.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
signal.c	Merge branch 'akpm' (patches from Andrew)	2017-11-17 16:56:17 -08:00
smp.c	smp/core: Use lockdep to assert IRQs are disabled/enabled	2017-11-08 11:13:50 +01:00
smpboot.c	watchdog/core, powerpc: Lock cpus across reconfiguration	2017-10-04 10:53:54 +02:00
smpboot.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
softirq.c	kmemcheck: rip it out	2017-11-15 18:21:05 -08:00
stacktrace.c
stop_machine.c
sys.c	arm64 updates for 4.15	2017-11-15 10:56:56 -08:00
sys_ni.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sysctl.c	kernel/sysctl.c: code cleanups	2017-11-17 16:10:03 -08:00
sysctl_binary.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
task_work.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
taskstats.c
test_kprobes.c	kprobes: Disable the jprobes test code	2017-10-20 11:02:54 +02:00
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
umh.c	kernel/umh.c: optimize 'proc_cap_handler()'	2017-11-17 16:10:01 -08:00
up.c
user-return-notifier.c
user.c	userns: use union in {g,u}idmap struct	2017-10-31 17:22:58 -05:00
user_namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-11-16 12:20:15 -08:00
utsname.c
utsname_sysctl.c
watchdog.c	Merge branch 'linus' into sched/core, to pick up fixes	2017-11-08 10:17:15 +01:00
watchdog_hld.c	Merge branch 'linus' into core/urgent, to pick up dependent commits	2017-11-04 08:53:04 +01:00
workqueue.c	Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-11-15 14:15:21 -08:00
workqueue_internal.h	Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-11-06 12:26:49 -08:00