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Zheng Yejian 7259ce8311 acct: fix potential integer overflow in encode_comp_t() 
[ Upstream commit c5f31c655b ]

The integer overflow is descripted with following codes:
  > 317 static comp_t encode_comp_t(u64 value)
  > 318 {
  > 319         int exp, rnd;
    ......
  > 341         exp <<= MANTSIZE;
  > 342         exp += value;
  > 343         return exp;
  > 344 }

Currently comp_t is defined as type of '__u16', but the variable 'exp' is
type of 'int', so overflow would happen when variable 'exp' in line 343 is
greater than 65535.

Link: https://lkml.kernel.org/r/20210515140631.369106-3-zhengyejian1@huawei.com
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zhang Jinhao <zhangjinhao2@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-13 14:13:58 +09:00
..
bpf
bpf: fix overflow in prog accounting
2023-06-13 14:13:21 +09:00
configs
ANDROID: add script to fetch android kernel config fragments
2017-10-03 17:19:26 +00:00
debug
kdb: Make memory allocations more robust
2023-05-16 10:36:43 +09:00
events
perf: Fix possible memleak in pmu_dev_alloc()
2023-06-13 14:13:51 +09:00
gcov
gcov: support GCC 12.1 and newer compilers
2023-06-13 14:13:37 +09:00
irq
random: remove unused irq_flags argument from add_interrupt_randomness()
2023-06-13 14:13:04 +09:00
livepatch
livepatch/module: make TAINT_LIVEPATCH module-specific
2016-08-26 14:42:08 +02:00
locking
locking/lockdep: Avoid RCU-induced noinstr fail
2023-05-16 12:14:03 +09:00
power
PM: hibernate: Fix mistake in kerneldoc comment
2023-06-13 14:13:51 +09:00
printk
printk: fix return value of printk.devkmsg __setup handler
2023-06-13 14:12:35 +09:00
rcu
rcuperf: Fix cleanup path for invalid perf_type strings
2023-05-15 13:36:07 +09:00
sched
sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
2023-06-13 14:12:35 +09:00
time
timekeeping: Add raw clock fallback for random_get_entropy()
2023-06-13 14:13:09 +09:00
trace
blktrace: Fix output non-blktrace event when blk_classic option enabled
2023-06-13 14:13:54 +09:00
.gitignore
certs: add .gitignore to stop git nagging about x509_certificate_list
2015-10-21 15:18:35 +01:00
acct.c
acct: fix potential integer overflow in encode_comp_t()
2023-06-13 14:13:58 +09:00
async.c
kernel/async.c: revert "async: simplify lowest_in_progress()"
2018-02-17 13:21:18 +01:00
audit_fsnotify.c
wrappers for ->i_mutex access
2016-01-22 18:04:28 -05:00
audit_tree.c
audit: cleanup prune_tree_thread
2016-04-04 09:46:47 -04:00
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2023-05-16 09:15:30 +09:00
audit.c
audit: fix a net reference leak in audit_list_rules_send()
2023-05-16 10:50:19 +09:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2023-05-16 10:50:19 +09:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2023-05-16 10:50:19 +09:00
auditsc.c
audit: print empty EXECVE args
2023-05-15 15:18:40 +09:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2023-05-15 09:22:43 +09:00
capability.c
ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
2017-01-06 10:40:13 +01:00
cfi.c
cfi: print target address on failure
2018-05-01 16:49:34 +00:00
cgroup_freezer.c
cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends
2015-12-03 10:24:08 -05:00
cgroup_pids.c
cgroup: pids: use atomic64_t for pids->limit
2023-05-15 16:16:25 +09:00
cgroup.c
cgroup-v1: Require capabilities to set release_agent
2023-05-16 12:41:24 +09:00
compat.c
19af5c5 dtv_demod: add AGC control for board t309 [1/1]
2019-05-06 21:14:10 +08:00
configs.c
…
context_tracking.c
context_tracking: Switch to new static_branch API
2015-11-24 09:56:43 +01:00
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2023-05-15 17:34:36 +09:00
cpu.c
random: clear fast pool, crng, and batches in cpuhp bring up
2023-06-13 14:13:07 +09:00
cpuset.c
Merge 4.9.55 into android-4.9
2017-10-12 22:31:24 +02:00
crash_dump.c
…
cred.c
memcg: account security cred as well to kmemcg
2023-05-15 16:30:24 +09:00
delayacct.c
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
dma.c
…
exec_domain.c
Remove rest of exec domains.
2015-04-12 21:03:31 +02:00
exit.c
security,selinux,smack: kill security_task_wait hook
2023-06-13 14:13:18 +09:00
extable.c
kernel/extable.c: mark core_kernel_text notrace
2017-07-21 07:42:21 +02:00
fork.c
mm/hugetlb: initialize hugetlb_usage in mm_init
2023-05-16 11:46:31 +09:00
freezer.c
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex.c
mm, futex: fix shared futex pgoff on shmem huge page
2023-05-16 11:16:33 +09:00
groups.c
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
hung_task.c
kernel: hung_task.c: disable on suspend
2023-05-15 12:23:14 +09:00
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
jump_label.c
jump_label: Invoke jump_label_test() via early_initcall()
2017-12-14 09:28:24 +01:00
kallsyms.c
rodata: optimize memory usage of rodata section [4/5]
2023-04-21 13:52:34 +09:00
kcmp.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-01-20 17:09:18 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS
2015-05-12 09:46:00 +02:00
Kconfig.preempt
…
kcov.c
kcov: ensure irq code sees a valid area
2023-05-12 16:39:07 +09:00
kexec_core.c
objtool, x86: Add several functions and files to the objtool whitelist
2018-06-05 10:28:57 +02:00
kexec_file.c
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
2023-06-13 14:13:14 +09:00
kexec_internal.h
kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE
2016-01-20 17:09:18 -08:00
kexec.c
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
kmod.c
usermodehelper: reset umask to default before executing user process
2023-05-16 09:24:03 +09:00
kprobes.c
kprobes: don't call disarm_kprobe() for disabled kprobes
2023-06-13 14:13:25 +09:00
ksysfs.c
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
kthread.c
kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
2023-05-16 11:16:38 +09:00
latencytop.c
sched/debug: Make schedstats a runtime tunable that is disabled by default
2016-02-09 11:54:23 +01:00
Makefile
elfcore: fix building with clang
2023-05-16 10:34:10 +09:00
membarrier.c
Fix: Disable sys_membarrier when nohz_full is enabled
2017-03-12 06:41:45 +01:00
memremap.c
mm, devm_memremap_pages: kill mapping "System RAM" support
2023-05-15 10:54:41 +09:00
module_signing.c
KEYS: Move the point of trust determination to __key_link()
2016-04-11 22:43:43 +01:00
module-internal.h
…
module.c
module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols
2023-05-16 10:38:49 +09:00
notifier.c
x86/mm: split vmalloc_sync_all()
2023-05-15 17:11:06 +09:00
nsproxy.c
cgroup: introduce cgroup namespaces
2016-02-16 13:04:58 -05:00
padata.c
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2023-05-15 17:28:50 +09:00
panic.c
panic: ensure preemption is disabled during panic()
2023-05-15 14:48:19 +09:00
params.c
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2015-11-09 15:53:39 -08:00
pid_namespace.c
memcg: enable accounting for pids in nested pid namespaces
2023-05-16 11:46:33 +09:00
pid.c
UPSTREAM: locking/atomic, kref: Add KREF_INIT()
2023-05-16 10:25:44 +09:00
profile.c
profiling: fix shift-out-of-bounds bugs
2023-05-16 11:52:36 +09:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2023-06-13 14:12:51 +09:00
range.c
kernel: avoid overflow in cmp_range
2015-01-17 10:02:23 +13:00
reboot.c
reboot: fix overflow parsing reboot cpu number
2023-05-16 09:48:13 +09:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2023-05-16 08:54:40 +09:00
resource.c
resource: fix integer overflow at reallocation
2018-04-24 09:34:09 +02:00
seccomp.c
seccomp: Add missing return in non-void function
2023-05-16 10:38:38 +09:00
signal.c
signal handling: don't use BUG_ON() for debugging
2023-06-13 14:13:17 +09:00
smp.c
smp: Fix offline cpu check in flush_smp_call_function_queue()
2023-06-13 14:12:43 +09:00
smpboot.c
kthread/smpboot: do not park in kthread_create_on_cpu()
2016-10-11 15:06:33 -07:00
smpboot.h
cpu/hotplug: Create hotplug threads
2016-03-01 20:36:56 +01:00
softirq.c
Mark HI and TASKLET softirq synchronous
2023-05-12 16:46:40 +09:00
stacktrace.c
stacktrace, lockdep: Fix address, newline ugliness
2017-02-14 15:25:42 -08:00
stop_machine.c
stop_machine: Use raw spinlocks
2023-05-12 16:43:35 +09:00
sys_ni.c
x86/pkeys: Fix pkeys build breakage for some non-x86 arches
2016-09-13 14:41:36 +02:00
sys.c
prctl: allow to setup brk for et_dyn executables
2023-05-16 11:52:33 +09:00
sysctl_binary.c
kernel/sysctl_binary.c: use generic UUID library
2016-05-20 17:58:30 -07:00
sysctl.c
proc: proc_skip_spaces() shouldn't think it is working on C strings
2023-06-13 14:13:47 +09:00
task_work.c
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats.c
taskstats: fix data-race
2023-05-15 16:30:15 +09:00
test_kprobes.c
…
torture.c
torture: Convert torture_shutdown() to hrtimer
2016-08-22 10:01:49 -07:00
tracepoint.c
tracepoint: Do not fail unregistering a probe due to memory failure
2023-05-16 10:37:50 +09:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2023-05-16 12:43:04 +09:00
ucount.c
kernel/ucount.c: mark user_header with kmemleak_ignore()
2017-06-17 06:41:51 +02:00
uid16.c
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
up.c
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
user_namespace.c
userns: move user access out of the mutex
2023-05-12 17:24:22 +09:00
user-return-notifier.c
…
user.c
ANDROID: proc: Add /proc/uid directory
2018-04-03 11:15:30 -07:00
utsname_sysctl.c
sys: don't hold uts_sem while accessing userspace memory
2023-05-12 17:24:20 +09:00
utsname.c
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
watchdog_hld.c
debug: hard lockup detect
2018-05-09 19:39:28 -07:00
watchdog.c
debug: hard lockup detect
2018-05-09 19:39:28 -07:00
workqueue_internal.h
workqueue: Fix NULL pointer dereference
2017-11-15 15:53:17 +01:00
workqueue.c
workqueue: make workqueue available early during boot
2023-06-13 14:13:07 +09:00