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Greg Kroah-Hartman 7855a721d9 bpf: Explicitly memset some bpf info structures declared on the stack 
commit 5c6f25887963f15492b604dd25cb149c501bbabf upstream.

Trying to initialize a structure with "= {};" will not always clean out
all padding locations in a structure. So be explicit and call memset to
initialize everything for a number of bpf information structures that
are then copied from userspace, sometimes from smaller memory locations
than the size of the structure.

Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200320162258.GA794295@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-02 16:34:37 +02:00
..
bpf bpf: Explicitly memset some bpf info structures declared on the stack 2020-04-02 16:34:37 +02:00
cgroup cgroup1: don't call release_agent when it is "" 2020-04-02 16:34:27 +02:00
configs
debug kdb: do a sanity check on the cpu in kdb_per_cpu() 2020-01-27 14:46:34 +01:00
events perf/core: Fix mlock accounting in perf_mmap() 2020-02-14 16:32:20 -05:00
gcov License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq genirq: Fix reference leaks on irq affinity notifiers 2020-04-02 16:34:31 +02:00
livepatch livepatch: Nullify obj->mod in klp_module_coming()'s error path 2019-10-07 18:55:09 +02:00
locking locking/spinlock/debug: Fix various data races 2020-01-12 12:11:49 +01:00
power PM / hibernate: memory_bm_find_bit(): Tighten node optimisation 2020-01-09 10:17:53 +01:00
printk printk: fix integer overflow in setup_log_buf() 2019-12-01 09:13:17 +01:00
rcu rcuperf: Fix cleanup path for invalid perf_type strings 2019-05-31 06:47:33 -07:00
sched sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision 2019-12-17 20:38:43 +01:00
time clocksource: Prevent double add_timer_on() for watchdog_timer 2020-02-14 16:32:20 -05:00
trace tracing: Disable trace_printk() on post poned tests 2020-03-11 18:02:50 +01:00
.gitignore
acct.c kernel/acct.c: fix the acct->needcheck check in check_free_space() 2018-01-10 09:31:17 +01:00
async.c kernel/async.c: revert "async: simplify lowest_in_progress()" 2018-02-16 20:23:05 +01:00
audit.c audit: always check the netlink payload length in audit_receive_msg() 2020-03-11 18:02:55 +01:00
audit.h ipc: mqueue: Replace timespec with timespec64 2017-09-03 20:21:24 -04:00
audit_fsnotify.c
audit_tree.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
audit_watch.c audit_get_nd(): don't unlock parent too early 2019-12-17 20:37:27 +01:00
auditfilter.c audit: fix error handling in audit_data_to_entry() 2020-03-11 18:02:48 +01:00
auditsc.c audit: print empty EXECVE args 2019-12-01 09:14:03 +01:00
backtracetest.c
bounds.c kbuild: fix kernel/bounds.c 'W=1' warning 2018-11-13 11:15:08 -08:00
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 compat: fix 4-byte infoleak via uninitialized struct field 2018-05-16 10:10:26 +02:00
configs.c
context_tracking.c
cpu.c cpu/hotplug, stop_machine: Fix stop_machine vs hotplug order 2020-02-28 16:35:55 +01:00
cpu_pm.c
crash_core.c kdump: write correct address of mem_section into vmcoreinfo 2018-01-17 09:45:27 +01:00
crash_dump.c
cred.c memcg: account security cred as well to kmemcg 2020-01-09 10:17:54 +01:00
delayacct.c delayacct: Use raw_spinlocks 2018-08-03 07:50:38 +02:00
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 kernel/elfcore.c: include proper prototypes 2019-10-11 18:18:42 +02:00
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 exit: panic before exit_mm() on global init exit 2020-01-09 10:17:56 +01:00
extable.c extable: Enable RCU if it is not watching in kernel_text_address() 2017-09-23 16:50:20 -04:00
fork.c futex: Split futex_mm_release() for exit/exec 2019-12-05 15:38:26 +01:00
freezer.c
futex.c futex: Unbreak futex hashing 2020-04-02 16:34:21 +02:00
groups.c kernel: make groups_sort calling a responsibility group_info allocators 2017-12-20 10:10:18 +01:00
hung_task.c kernel: hung_task.c: disable on suspend 2019-04-20 09:15:05 +02:00
irq_work.c
jump_label.c sched/core: Fix cpu.max vs. cpuhotplug deadlock 2018-12-05 19:41:17 +01:00
kallsyms.c kallsyms: Don't let kallsyms_lookup_size_offset() fail on retrieving the first symbol 2019-09-21 07:15:38 +02:00
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: ensure irq code sees a valid area 2018-08-03 07:50:22 +02:00
kexec.c
kexec_core.c kexec: Allocate decrypted control pages for kdump if SME is enabled 2019-11-24 08:23:15 +01:00
kexec_file.c
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 kmod: move #ifdef CONFIG_MODULES wrapper to Makefile 2017-09-08 18:26:51 -07:00
kprobes.c kprobes: Fix optimize_kprobe()/unoptimize_kprobe() cancellation logic 2020-03-11 18:02:57 +01:00
ksysfs.c
kthread.c kthread, tracing: Don't expose half-written comm when creating kthreads 2018-08-03 07:50:21 +02:00
latencytop.c
Makefile y2038: futex: Move compat implementation into futex.c 2019-12-05 15:38:22 +01:00
memremap.c mm, devm_memremap_pages: kill mapping "System RAM" support 2019-01-13 10:01:02 +01:00
module-internal.h
module.c kernel/module: Fix memleak in module_add_modinfo_attrs() 2020-02-14 16:32:06 -05:00
module_signing.c
notifier.c x86/mm: split vmalloc_sync_all() 2020-04-02 16:34:20 +02:00
nsproxy.c
padata.c padata: Remove broken queue flushing 2020-02-28 16:35:53 +01:00
panic.c panic: ensure preemption is disabled during panic() 2019-10-17 13:43:19 -07:00
params.c kernel/params.c: improve STANDARD_PARAM_DEF readability 2017-10-03 17:54:26 -07:00
pid.c
pid_namespace.c signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig 2019-07-31 07:28:21 +02:00
profile.c
ptrace.c ptrace: reintroduce usage of subjective credentials in ptrace_has_cap() 2020-01-23 08:20:32 +01:00
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
relay.c relay: check return of create_buf_file() properly 2019-03-13 14:03:20 -07:00
resource.c resource: fix integer overflow at reallocation 2018-04-24 09:36:22 +02:00
seccomp.c seccomp: Move speculation migitation control to arch code 2018-05-22 18:54:04 +02:00
signal.c signal: avoid double atomic counter increments for user accounting 2020-03-20 10:54:25 +01:00
smp.c cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM 2019-02-12 19:46:13 +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 Mark HI and TASKLET softirq synchronous 2018-08-15 18:12:47 +02:00
stacktrace.c
stop_machine.c stop_machine: Atomically queue and wake stopper threads 2018-09-05 09:26:36 +02:00
sys.c kernel/sys.c: prctl: fix false positive in validate_prctl_map() 2019-06-15 11:54:52 +02:00
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: make drop_caches write-only 2020-01-04 13:59:57 +01:00
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 locking/barriers: Convert users of lockless_dereference() to READ_ONCE() 2017-12-25 14:26:21 +01:00
taskstats.c taskstats: fix data-race 2020-01-09 10:17:53 +01:00
test_kprobes.c
torture.c
tracepoint.c tracepoint: Do not warn on ENOMEM 2018-05-09 09:51:50 +02:00
tsacct.c
ucount.c
uid16.c kernel: make groups_sort calling a responsibility group_info allocators 2017-12-20 10:10:18 +01:00
umh.c kmod: split out umh code into its own file 2017-09-08 18:26:50 -07:00
up.c smp: Avoid using two cache lines for struct call_single_data 2017-08-29 15:14:38 +02:00
user-return-notifier.c
user.c
user_namespace.c userns: move user access out of the mutex 2018-09-09 19:56:00 +02:00
utsname.c
utsname_sysctl.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 19:56:00 +02:00
watchdog.c watchdog/softlockup: Enforce that timestamp is valid on boot 2020-02-28 16:36:05 +01:00
watchdog_hld.c watchdog: Mark watchdog touch functions as notrace 2018-09-05 09:26:42 +02:00
workqueue.c workqueue: don't use wq_select_unbound_cpu() for bound works 2020-03-20 10:54:16 +01:00
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