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Daniel Borkmann bb01a1bba5 bpf: Fix mask direction swap upon off reg sign change 
Masking direction as indicated via mask_to_left is considered to be
calculated once and then used to derive pointer limits. Thus, this
needs to be placed into bpf_sanitize_info instead so we can pass it
to sanitize_ptr_alu() call after the pointer move. Piotr noticed a
corner case where the off reg causes masking direction change which
then results in an incorrect final aux->alu_limit.

Fixes: 7fedb63a8307 ("bpf: Tighten speculative pointer arithmetic mask")
Reported-by: Piotr Krysiuk <piotras@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Piotr Krysiuk <piotras@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
2021-05-25 22:08:53 +02:00
..
bpf
bpf: Fix mask direction swap upon off reg sign change
2021-05-25 22:08:53 +02:00
cgroup
cgroup: rstat: punt root-level optimization to individual controllers
2021-04-30 11:20:37 -07:00
configs
drivers/char: remove /dev/kmem for good
2021-05-07 00:26:34 -07:00
debug
printk changes for 5.13
2021-04-27 18:09:44 -07:00
dma
Merge branch 'stable/for-linus-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
2021-05-04 10:58:49 -07:00
entry
A trivial cleanup of typo fixes.
2021-04-26 09:41:15 -07:00
events
ARM:
2021-05-01 10:14:08 -07:00
gcov
gcov: clang: drop support for clang-10 and older
2021-05-07 00:26:32 -07:00
irq
gpio updates for v5.13
2021-05-05 12:39:29 -07:00
kcsan
kcsan: Fix printk format string
2021-04-22 14:36:03 +02:00
livepatch
Livepatching changes for 5.13
2021-04-27 18:14:38 -07:00
locking
Locking changes for this cycle were:
2021-04-28 12:37:53 -07:00
power
PM: sleep: fix typos in comments
2021-04-08 19:37:21 +02:00
printk
kernel/printk.c: Fixed mundane typos
2021-03-30 15:34:17 +02:00
rcu
Merge branches 'bitmaprange.2021.03.08a', 'fixes.2021.03.15a', 'kvfree_rcu.2021.03.08a', 'mmdumpobj.2021.03.08a', 'nocb.2021.03.15a', 'poll.2021.03.24a', 'rt.2021.03.08a', 'tasks.2021.03.08a', 'torture.2021.03.08a' and 'torturescript.2021.03.22a' into HEAD
2021-03-24 17:20:18 -07:00
sched
Scheduler updates for this cycle are:
2021-04-28 13:33:57 -07:00
time
ARM:
2021-05-01 10:14:08 -07:00
trace
tracing: Fix probes written to the set_ftrace_filter file
2021-05-06 10:03:38 -07:00
.gitignore
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
acct.c
kernel/acct.c: use #elif instead of #end and #elif
2020-12-15 22:46:15 -08:00
async.c
kernel/async.c: remove async_unregister_domain()
2021-05-07 00:26:33 -07:00
audit_fsnotify.c
audit_alloc_mark(): don't open-code ERR_CAST()
2021-02-23 10:25:27 -05:00
audit_tree.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit_watch.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit.c
lsm: separate security_task_getsecid() into subjective and objective variants
2021-03-22 15:23:32 -04:00
audit.h
audit: avoid -Wempty-body warning
2021-03-24 12:11:48 -04:00
auditfilter.c
lsm: separate security_task_getsecid() into subjective and objective variants
2021-03-22 15:23:32 -04:00
auditsc.c
audit/stable-5.13 PR 20210426
2021-04-27 13:50:58 -07:00
backtracetest.c
…
bounds.c
…
capability.c
capability: handle idmapped mounts
2021-01-24 14:27:16 +01:00
cfi.c
add support for Clang CFI
2021-04-08 16:04:20 -07:00
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpumask/hotplug: Fix cpu_dying() state tracking
2021-04-21 13:55:43 +02:00
crash_core.c
kdump: append uts_namespace.name offset to VMCOREINFO
2020-12-15 22:46:18 -08:00
crash_dump.c
…
cred.c
kernel/cred.c: make init_groups static
2021-05-06 19:24:11 -07:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
do_wait: make PIDTYPE_PID case O(1) instead of O(n)
2021-05-06 19:24:13 -07:00
extable.c
…
fail_function.c
fault-injection: handle EI_ETYPE_TRUE
2020-12-15 22:46:19 -08:00
fork.c
kernel/fork.c: fix typos
2021-05-06 19:24:13 -07:00
freezer.c
Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"
2021-03-27 14:09:10 -06:00
futex.c
Linux 5.12-rc5
2021-03-29 15:56:48 +02:00
gen_kheaders.sh
kbuild: redo fake deps at include/config/*.h
2021-04-25 05:26:10 +09:00
groups.c
groups: simplify struct group_info allocation
2021-02-26 09:41:03 -08:00
hung_task.c
kernel/hung_task.c: make type annotations consistent
2020-11-02 12:14:19 -08:00
iomem.c
…
irq_work.c
irq_work: record irq_work_queue() call stack
2021-04-30 11:20:42 -07:00
jump_label.c
static_call: Fix static_call_update() sanity check
2021-03-19 13:16:44 +01:00
kallsyms.c
kallsyms: strip ThinLTO hashes from static functions
2021-04-08 16:04:21 -07:00
kcmp.c
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
preempt: Introduce CONFIG_PREEMPT_DYNAMIC
2021-02-17 14:12:24 +01:00
kcov.c
kernel: make kcov_common_handle consider the current context
2020-11-02 18:00:20 -08:00
kexec_core.c
kexec: dump kmessage before machine_kexec
2021-05-07 00:26:32 -07:00
kexec_elf.c
…
kexec_file.c
kernel: kexec_file: fix error return code of kexec_calculate_store_digests()
2021-05-07 00:26:32 -07:00
kexec_internal.h
kexec: move machine_kexec_post_load() to public interface
2021-02-22 12:33:26 +00:00
kexec.c
…
kheaders.c
…
kmod.c
modules: add CONFIG_MODPROBE_PATH
2021-05-07 00:26:33 -07:00
kprobes.c
kprobes: Fix to delay the kprobes jump optimization
2021-02-19 14:57:12 -05:00
ksysfs.c
…
kthread.c
Scheduler updates for this cycle are:
2021-04-28 13:33:57 -07:00
latencytop.c
…
Makefile
kbuild: update config_data.gz only when the content of .config is changed
2021-05-02 00:43:35 +09:00
module_signature.c
module: harden ELF info handling
2021-01-19 10:24:45 +01:00
module_signing.c
module: harden ELF info handling
2021-01-19 10:24:45 +01:00
module-internal.h
…
module.c
Summary of modules changes for the 5.13 merge window:
2021-04-30 12:29:36 -07:00
notifier.c
…
nsproxy.c
fixes-v5.11
2020-12-14 16:40:27 -08:00
padata.c
…
panic.c
panic: don't dump stack twice on warn
2020-11-14 11:26:04 -08:00
params.c
Modules updates for v5.11
2020-12-17 13:01:31 -08:00
pid_namespace.c
fixes-v5.11
2020-12-14 16:40:27 -08:00
pid.c
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
profile.c
kernel: Initialize cpumask before parsing
2021-04-10 13:35:54 +02:00
ptrace.c
Linux 5.12-rc8
2021-04-20 10:13:58 +02:00
range.c
…
reboot.c
Revert "PM: ACPI: reboot: Use S5 for reboot"
2021-03-18 16:58:02 +01:00
regset.c
…
relay.c
relay: allow the use of const callback structs
2020-12-15 22:46:18 -08:00
resource_kunit.c
resource: provide meaningful MODULE_LICENSE() in test suite
2020-11-25 18:52:35 +01:00
resource.c
kernel/resource: fix locking in request_free_mem_region
2021-05-07 00:26:33 -07:00
rseq.c
rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()
2021-04-14 18:04:09 +02:00
scftorture.c
scftorture: Add debug output for wrong-CPU warning
2021-01-04 13:53:41 -08:00
scs.c
scs: switch to vmapped shadow stacks
2020-12-01 10:30:28 +00:00
seccomp.c
Merge branch 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-05-03 11:05:28 -07:00
signal.c
Scheduler updates for this cycle are:
2021-04-28 13:33:57 -07:00
smp.c
Merge branch 'locking/core' into x86/mm, to resolve conflict
2021-03-06 13:00:58 +01:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-01-22 15:09:42 +01:00
smpboot.h
…
softirq.c
RCU changes for this cycle were:
2021-04-28 12:00:13 -07:00
stackleak.c
…
stacktrace.c
…
static_call.c
static_call: Fix unused variable warn w/o MODULE
2021-04-09 13:22:12 +02:00
stop_machine.c
stop_machine: Add caller debug info to queue_stop_cpus_work
2021-03-23 16:01:58 +01:00
sys_ni.c
Add Landlock, a new LSM from Mickaël Salaün <mic@linux.microsoft.com>
2021-05-01 18:50:44 -07:00
sys.c
kernel/sys.c: fix typo
2021-05-07 00:26:34 -07:00
sysctl-test.c
…
sysctl.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2021-05-11 16:05:56 -07:00
task_work.c
kasan: record task_work_add() call stack
2021-04-30 11:20:42 -07:00
taskstats.c
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
test_kprobes.c
…
torture.c
torture: Replace torture_init_begin string with %s
2021-03-08 14:22:28 -08:00
tracepoint.c
tracepoints: Code clean up
2021-02-09 12:27:29 -05:00
tsacct.c
…
ucount.c
fanotify: configurable limits via sysfs
2021-03-16 16:49:31 +01:00
uid16.c
…
uid16.h
…
umh.c
kernel/umh.c: fix some spelling mistakes
2021-05-07 00:26:34 -07:00
up.c
kernel/up.c: fix typo
2021-05-07 00:26:34 -07:00
user_namespace.c
kernel/user_namespace.c: fix typos
2021-05-07 00:26:34 -07:00
user-return-notifier.c
…
user.c
…
usermode_driver.c
bpf: Fix umd memory leak in copy_process()
2021-03-19 22:23:19 +01:00
utsname_sysctl.c
…
utsname.c
…
watch_queue.c
watch_queue: rectify kernel-doc for init_watch()
2021-01-26 11:16:34 +00:00
watchdog_hld.c
…
watchdog.c
watchdog: cleanup handling of false positives
2021-04-30 11:20:36 -07:00
workqueue_internal.h
…
workqueue.c
CFI on arm64 series for v5.13-rc1
2021-04-27 10:16:46 -07:00