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Bui Quang Minh 7661073517 bpf: Check for integer overflow when using roundup_pow_of_two() 
[ Upstream commit 6183f4d3a0 ]

On 32-bit architecture, roundup_pow_of_two() can return 0 when the argument
has upper most bit set due to resulting 1UL << 32. Add a check for this case.

Fixes: d5a3b1f691 ("bpf: introduce BPF_MAP_TYPE_STACK_TRACE")
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127063653.3576-1-minhquangbui99@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-23 14:00:32 +01:00
..
bpf
bpf: Check for integer overflow when using roundup_pow_of_two()
2021-02-23 14:00:32 +01:00
cgroup
cgroup: add missing skcd->no_refcnt check in cgroup_sk_clone()
2020-08-21 09:48:02 +02:00
configs
…
debug
kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
2020-11-05 11:06:55 +01:00
events
perf/core: Fix race in the perf_mmap_close() function
2020-11-18 18:28:02 +01:00
gcov
gcov: add support for GCC 10.1
2020-09-23 10:46:32 +02:00
irq
genirq/irqdomain: Don't try to free an interrupt that has no mapping
2020-12-29 13:46:56 +01:00
livepatch
livepatch: Nullify obj->mod in klp_module_coming()'s error path
2019-10-07 18:55:09 +02:00
locking
rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
2021-01-30 13:31:16 +01:00
power
PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
2020-10-29 09:07:16 +01:00
printk
printk: handle blank console arguments passed in.
2020-10-01 13:12:45 +02:00
rcu
rcuperf: Fix cleanup path for invalid perf_type strings
2019-05-31 06:47:33 -07:00
sched
sched: Reenable interrupts in do_sched_yield()
2020-12-29 13:46:51 +01:00
time
random32: make prandom_u32() output unpredictable
2020-11-18 18:28:00 +01:00
trace
tracing: Check length before giving out the filter buffer
2021-02-23 14:00:31 +01:00
.gitignore
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acct.c
…
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:12:33 +02:00
audit.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-20 10:25:10 +02:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2020-06-20 10:25:10 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-20 10:25:10 +02:00
auditsc.c
audit: print empty EXECVE args
2019-12-01 09:14:03 +01:00
backtracetest.c
…
bounds.c
…
capability.c
…
compat.c
make 'user_access_begin()' do 'access_ok()'
2020-06-20 10:24:58 +02:00
configs.c
…
context_tracking.c
…
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-20 10:25:19 +02:00
cpu.c
kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling
2020-12-29 13:46:47 +01:00
crash_core.c
…
crash_dump.c
…
cred.c
memcg: account security cred as well to kmemcg
2020-01-09 10:17:54 +01:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
don't dump the threads that had been already exiting when zapped.
2020-11-18 18:27:58 +01:00
extable.c
…
fork.c
fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
2020-11-10 10:29:06 +01:00
freezer.c
…
futex.c
futex: Handle faults correctly for PI futexes
2021-01-30 13:31:16 +01:00
groups.c
…
hung_task.c
kernel: hung_task.c: disable on suspend
2019-04-20 09:15:05 +02:00
irq_work.c
…
jump_label.c
…
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
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.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
…
kexec.c
…
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-24 08:00:44 +02:00
kprobes.c
kretprobe: Avoid re-registration of the same kretprobe earlier
2021-02-10 09:12:09 +01:00
ksysfs.c
…
kthread.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 14:47:41 +01:00
latencytop.c
…
Makefile
elfcore: fix building with clang
2021-02-10 09:12:08 +01:00
memremap.c
mm, devm_memremap_pages: kill mapping "System RAM" support
2019-01-13 10:01:02 +01:00
module_signing.c
…
module-internal.h
…
module.c
module: delay kobject uevent until after module init call
2021-01-09 13:37:39 +01:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-04-02 16:34:20 +02:00
nsproxy.c
…
padata.c
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2020-05-27 16:43:05 +02:00
panic.c
panic: ensure preemption is disabled during panic()
2019-10-17 13:43:19 -07:00
params.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
pid.c
…
profile.c
…
ptrace.c
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:20:32 +01:00
range.c
…
reboot.c
reboot: fix overflow parsing reboot cpu number
2020-11-18 18:28:02 +01:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:29:54 +02:00
resource.c
…
seccomp.c
…
signal.c
signal: Extend exec_id to 64bits
2020-04-24 08:00:38 +02:00
smp.c
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
2019-02-12 19:46:13 +01:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 14:47:41 +01:00
smpboot.h
…
softirq.c
…
stacktrace.c
…
stop_machine.c
…
sys_ni.c
…
sys.c
kernel/sys.c: avoid copying possible padding bytes in copy_to_user
2020-10-01 13:12:30 +02:00
sysctl_binary.c
…
sysctl.c
kernel: sysctl: make drop_caches write-only
2020-01-04 13:59:57 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:17:53 +01:00
test_kprobes.c
…
torture.c
…
tracepoint.c
…
tsacct.c
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ucount.c
…
uid16.c
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-14 09:51:10 +02:00
up.c
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user_namespace.c
…
user-return-notifier.c
…
user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
…
watchdog.c
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-28 16:36:05 +01:00
workqueue_internal.h
…
workqueue.c
workqueue: Kick a worker based on the actual activation of delayed works
2021-01-12 20:09:05 +01:00