Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Krzesimir Nowak e2f7fc0ac6 bpf: fix undefined behavior in narrow load handling ... Commit 31fd85816d ("bpf: permits narrower load from bpf program context fields") made the verifier add AND instructions to clear the unwanted bits with a mask when doing a narrow load. The mask is computed with (1 << size * 8) - 1 where "size" is the size of the narrow load. When doing a 4 byte load of a an 8 byte field the verifier shifts the literal 1 by 32 places to the left. This results in an overflow of a signed integer, which is an undefined behavior. Typically, the computed mask was zero, so the result of the narrow load ended up being zero too. Cast the literal to long long to avoid overflows. Note that narrow load of the 4 byte fields does not have the undefined behavior, because the load size can only be either 1 or 2 bytes, so shifting 1 by 8 or 16 places will not overflow it. And reading 4 bytes would not be a narrow load of a 4 bytes field. Fixes: 31fd85816d ("bpf: permits narrower load from bpf program context fields") Reviewed-by: Alban Crequy <alban@kinvolk.io> Reviewed-by: Iago López Galeiras <iago@kinvolk.io> Signed-off-by: Krzesimir Nowak <krzesimir@kinvolk.io> Cc: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2019-05-13 02:05:50 +02:00
..
bpf	bpf: fix undefined behavior in narrow load handling	2019-05-13 02:05:50 +02:00
cgroup	Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2019-05-09 13:52:12 -07:00
configs
debug	kdb: use bool for binary state indicators	2018-12-30 08:31:52 +00:00
dma	DMA mapping updates for 5.2	2019-05-09 08:40:55 -07:00
events	Printk changes for 5.2	2019-05-07 09:18:12 -07:00
gcov	kernel/gcov/gcc_3_4.c: use struct_size() in kzalloc()	2019-03-07 18:32:02 -08:00
irq	Driver core/kobject patches for 5.2-rc1	2019-05-07 13:01:40 -07:00
livepatch	Driver core/kobject patches for 5.2-rc1	2019-05-07 13:01:40 -07:00
locking	Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())	2019-05-06 16:57:52 -07:00
power	Power management updates for 5.2-rc1	2019-05-06 19:40:31 -07:00
printk	fbdev changes for v5.1:	2019-03-15 14:22:59 -07:00
rcu	Printk changes for 5.2	2019-05-07 09:18:12 -07:00
sched	Driver core/kobject patches for 5.2-rc1	2019-05-07 13:01:40 -07:00
time	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-05-07 22:03:58 -07:00
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-05-07 22:03:58 -07:00
.gitignore	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
acct.c	acct_on(): don't mess with freeze protection	2019-04-04 21:04:13 -04:00
async.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
audit.c	audit: connect LOGIN record to its syscall record	2019-03-20 20:57:48 -04:00
audit.h	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
audit_fsnotify.c	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
audit_tree.c	fsnotify: switch send_to_group() and ->handle_event to const struct qstr *	2019-04-26 13:51:03 -04:00
audit_watch.c	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
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
capability.c	LSM: add SafeSetID module that gates setid calls	2019-01-25 11:22:43 -08:00
compat.c	time: make adjtime compat handling available for 32 bit	2019-02-07 00:13:27 +01:00
configs.c	kernel/configs: use .incbin directive to embed config_data.gz	2019-03-07 18:32:02 -08:00
context_tracking.c
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
cpu_pm.c
crash_core.c	kexec: export PG_offline to VMCOREINFO	2019-03-05 21:07:14 -08:00
crash_dump.c
cred.c	SELinux: Remove cred security blob poisoning	2019-01-08 13:18:44 -08:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	Merge branch 'for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2019-03-07 10:11:41 -08:00
extable.c
fail_function.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
fork.c	Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2019-05-09 13:52:12 -07:00
freezer.c
futex.c	locking/futex: Allow low-level atomic operations to return -EAGAIN	2019-04-26 13:57:31 +01:00
gen_ikh_data.sh	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
groups.c
hung_task.c	kernel/hung_task.c: Use continuously blocked time when reporting.	2019-03-07 18:31:59 -08:00
iomem.c	mm/resource: Use resource_overlaps() to simplify region_intersects()	2019-04-19 12:59:36 +02:00
irq_work.c	irq_work: Do not raise an IPI when queueing work on the local CPU	2019-04-18 14:07:52 +02:00
jump_label.c	locking/static_key: Don't take sleeping locks in __static_key_slow_dec_deferred()	2019-04-29 08:29:21 +02:00
kallsyms.c	bpf: Add module name [bpf] to ksymbols for bpf programs	2019-01-21 17:38:56 -03:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())	2019-05-06 16:57:52 -07:00
Kconfig.preempt
kcov.c	kcov: convert kcov.refcount to refcount_t	2019-03-07 18:32:02 -08:00
kexec.c
kexec_core.c	power/suspend: Add function to disable secondaries for suspend	2019-05-03 19:42:41 +02:00
kexec_file.c	crypto: shash - remove shash_desc::flags	2019-04-25 15:38:12 +08:00
kexec_internal.h
kheaders.c	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
kmod.c
kprobes.c	kprobes: Fix error check when reusing optimized probes	2019-04-16 09:38:16 +02:00
ksysfs.c
kthread.c	Merge branch 'akpm' (patches from Andrew)	2019-03-06 10:31:36 -08:00
latencytop.c	latency_top: Simplify stack trace handling	2019-04-29 12:37:48 +02:00
Makefile	Driver core/kobject patches for 5.2-rc1	2019-05-07 13:01:40 -07:00
memremap.c	mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm	2018-12-28 12:11:52 -08:00
module-internal.h
module.c	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-05-09 12:54:40 -07:00
module_signing.c
notifier.c
nsproxy.c
padata.c	padata: Replace padata_attr_type default_attrs field with groups	2019-04-25 22:06:11 +02:00
panic.c	s390: simplify disabled_wait	2019-05-02 13:54:11 +02:00
params.c
pid.c	Fix failure path in alloc_pid()	2018-12-28 12:42:30 -08:00
pid_namespace.c
profile.c
ptrace.c	ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK	2019-03-29 10:01:37 -07:00
range.c
reboot.c
relay.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-03-12 13:27:20 -07:00
resource.c	mm/resource: Use resource_overlaps() to simplify region_intersects()	2019-04-19 12:59:36 +02:00
rseq.c	rseq: Remove superfluous rseq_len from task_struct	2019-04-19 12:39:32 +02:00
seccomp.c	audit/stable-5.2 PR 20190507	2019-05-07 19:06:04 -07:00
signal.c	Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2019-05-09 13:52:12 -07:00
smp.c	cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM	2019-01-30 19:27:00 +01:00
smpboot.c
smpboot.h
softirq.c	softirq: Remove tasklet_hrtimer	2019-03-22 14:36:02 +01:00
stackleak.c
stacktrace.c	stacktrace: Provide common infrastructure	2019-04-29 12:37:57 +02:00
stop_machine.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
sys.c	Merge branch 'akpm' (patches from Andrew)	2019-03-07 19:25:37 -08:00
sys_ni.c	signal: support CLONE_PIDFD with pidfd_send_signal	2019-05-07 14:31:03 +02:00
sysctl.c	ipv6: Add rate limit mask for ICMPv6 messages	2019-04-18 16:58:37 -07:00
sysctl_binary.c	kernel/sysctl: add panic_print into sysctl	2019-01-04 13:13:47 -08:00
task_work.c
taskstats.c	genetlink: optionally validate strictly/dumps	2019-04-27 17:07:22 -04:00
test_kprobes.c
torture.c	torture: Don't try to offline the last CPU	2019-03-26 14:42:53 -07:00
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	umh: add exit routine for UMH process	2019-01-11 18:05:40 -08:00
up.c
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c	watchdog: Fix typo in comment	2019-04-18 14:05:51 +02:00
watchdog_hld.c	kernel/watchdog_hld.c: hard lockup message should end with a newline	2019-04-19 09:46:05 -07:00
workqueue.c	Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2019-05-09 13:48:52 -07:00
workqueue_internal.h	sched/core, workqueues: Distangle worker accounting from rq lock	2019-04-16 16:55:15 +02:00