Quentin Perret 2bb3e44126 FROMLIST: sched: Fix out-of-bound access in uclamp ... Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can lead to an off-by-one error in some configurations. For instance, with 20 buckets, the bucket size will be 1024/20=51. A task with a clamp of 1024 will be mapped to bucket id 1024/51=20. Sadly, correct indexes are in range [0,19], hence leading to an out of bound memory access. Clamp the bucket id to fix the issue. Bug: 186415778 Fixes: 69842cba9a ("sched/uclamp: Add CPU's clamp buckets refcounting") Suggested-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Quentin Perret <qperret@google.com> Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Link: https://lore.kernel.org/r/20210430151412.160913-1-qperret@google.com Change-Id: Ibc28662de5554f80f97533b60e747f8a6e871c56		2021-05-04 09:07:38 +00:00
..
bpf	Merge 5.10.33 into android12-5.10	2021-04-29 13:57:47 +02:00
cgroup	ANDROID: cgroup: Add vendor hook for cpuset.	2021-04-21 13:31:39 -07:00
configs
debug	kgdb: fix to kill breakpoints on initmem after boot	2021-03-04 11:38:46 +01:00
dma	FROMLIST: mm: cma: introduce gfp flag in cma_alloc instead of no_warn	2021-01-25 12:21:02 -08:00
entry	x86/entry: Move nmi entry/exit into common code	2021-03-17 17:06:36 +01:00
events	This is the 5.10.24 stable release	2021-03-19 09:42:56 +01:00
gcov	gcov: re-fix clang-11+ support	2021-04-14 08:41:58 +02:00
irq	Merge 5.10.26 into android12-5.10-lts	2021-03-25 17:15:27 +01:00
kcsan	kcsan: Rewrite kcsan_prandom_u32_max() without prandom_u32_state()	2021-03-04 11:37:37 +01:00
livepatch
locking	Merge 5.10.33 into android12-5.10	2021-04-29 13:57:47 +02:00
power	Merge 5.10.27 into android12-5.10	2021-04-02 15:25:50 +02:00
printk	ANDROID: logbuf: vendor hook for logbuf dump on oops	2021-04-15 20:02:45 +00:00
rcu	FROMGIT: rcu/tree: Add a trace event for RCU CPU stall warnings	2021-03-11 21:06:44 +09:00
sched	FROMLIST: sched: Fix out-of-bound access in uclamp	2021-05-04 09:07:38 +00:00
time	FROMGIT: tick/broadcast: Allow late registered device to enter oneshot mode	2021-04-23 16:25:34 +00:00
trace	Merge 5.10.31 into android12-5.10	2021-04-16 16:01:44 +02:00
.gitignore	FROMGIT: kbuild: update config_data.gz only when the content of .config is changed	2021-04-29 08:45:48 +00:00
acct.c
async.c
audit_fsnotify.c	fsnotify: generalize handle_inode_event()	2020-12-30 11:54:18 +01:00
audit_tree.c	fsnotify: generalize handle_inode_event()	2020-12-30 11:54:18 +01:00
audit_watch.c	fsnotify: generalize handle_inode_event()	2020-12-30 11:54:18 +01:00
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cfi.c	ANDROID: cfi: switch to synchronize_rcu_expedited()	2021-02-16 18:09:38 +00:00
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c	ANDROID: cpu/hotplug: failure to offline 2nd to last cpu	2021-03-11 21:32:28 +00:00
crash_core.c
crash_dump.c
cred.c	ANDROID: kernel: Add vendor hook in creds	2021-03-15 15:37:57 +00:00
delayacct.c
dma.c
exec_domain.c
exit.c	ANDROID: vendor_hooks: Add hooks for memory when debug	2021-03-19 04:54:07 +00:00
extable.c
fail_function.c
fork.c	ANDROID: sched: Add vendor hooks for sched.	2021-04-23 18:42:38 -07:00
freezer.c	Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"	2021-04-07 15:00:14 +02:00
futex.c	ANDROID: mm: page_pinner: use put_user_page at get_futex_key	2021-04-30 09:13:34 -07:00
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c	static_call: Fix static_call_update() sanity check	2021-03-25 09:04:18 +01:00
kallsyms.c	ANDROID: kallsyms: cfi: strip hashes from static functions	2021-01-14 16:31:46 +00:00
kcmp.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:46:24 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c	kernel: kexec: remove the lock operation of system_transition_mutex	2021-02-03 23:28:37 +01:00
kexec_elf.c
kexec_file.c	ima: Free IMA measurement buffer after kexec syscall	2021-03-04 11:37:50 +01:00
kexec_internal.h
kexec.c
kheaders.c
kmod.c
kprobes.c	kprobes: Fix to delay the kprobes jump optimization	2021-03-04 11:38:35 +01:00
ksysfs.c
kthread.c	Merge 5.10.14 into android12-5.10	2021-02-08 20:05:12 -08:00
latencytop.c
Makefile	FROMGIT: kbuild: update config_data.gz only when the content of .config is changed	2021-04-29 08:45:48 +00:00
module_signature.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
module_signing.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
module-internal.h
module.c	Merge 5.10.26 into android12-5.10-lts	2021-03-25 17:15:27 +01:00
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c
pid.c	Merge 5.10.6 into android12-5.10	2021-01-13 10:28:55 +01:00
profile.c
ptrace.c
range.c
reboot.c
regset.c
relay.c
resource.c
rseq.c
scftorture.c
scs.c	UPSTREAM: scs: switch to vmapped shadow stacks	2021-01-07 17:56:54 -08:00
seccomp.c	Merge 5.10.20 into android12-5.10	2021-03-07 12:33:33 +01:00
signal.c	ANDROID: Add vendor hooks to signal.	2021-04-09 02:30:55 +00:00
smp.c	ANDROID: smp: fix preprocessor conditional warning	2021-04-14 18:33:17 +00:00
smpboot.c	kthread: Extract KTHREAD_IS_PER_CPU	2021-02-07 15:37:17 +01:00
smpboot.h
softirq.c
stackleak.c
stacktrace.c	ANDROID: stacktrace: export stack_trace_save_tsk/regs	2021-04-13 13:18:04 +00:00
static_call.c	static_call: Align static_call_is_init() patching condition	2021-04-07 15:00:06 +02:00
stop_machine.c
sys_ni.c
sys.c	ANDROID: Add vendor hooks when syscall prctl finished	2021-03-08 16:18:51 +00:00
sysctl-test.c
sysctl.c	This is the 5.10.24 stable release	2021-03-19 09:42:56 +01:00
task_work.c	FROMGIT: kasan: record task_work_add() call stack	2021-03-24 15:09:18 -07:00
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	ANDROID: vendor_hooks: Allow multiple attachments to restricted hooks	2021-03-31 09:08:06 +00:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c
user-return-notifier.c
user.c	ANDROID: export find_user() & free_uid()for GKI purpose.	2021-04-23 03:37:41 +00:00
usermode_driver.c	bpf: Fix umd memory leak in copy_process()	2021-03-30 14:32:03 +02:00
utsname_sysctl.c
utsname.c
watch_queue.c
watchdog_hld.c
watchdog.c	ANDROID: softlockup: add vendor hook for a softlockup task	2021-02-04 23:55:45 +00:00
workqueue_internal.h
workqueue.c	Merge 5.10.30 into android12-5.10	2021-04-15 14:23:41 +02:00