Shuai Xue
788c0b3442
perf/core: Bail out early if the request AUX area is out of bound ...
[ Upstream commit 54aee5f15b83437f23b2b2469bcf21bdd9823916 ]
When perf-record with a large AUX area, e.g 4GB, it fails with:
#perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1
failed to mmap with 12 (Cannot allocate memory)
and it reveals a WARNING with __alloc_pages():
------------[ cut here ]------------
WARNING: CPU: 44 PID: 17573 at mm/page_alloc.c:5568 __alloc_pages+0x1ec/0x248
Call trace:
__alloc_pages+0x1ec/0x248
__kmalloc_large_node+0xc0/0x1f8
__kmalloc_node+0x134/0x1e8
rb_alloc_aux+0xe0/0x298
perf_mmap+0x440/0x660
mmap_region+0x308/0x8a8
do_mmap+0x3c0/0x528
vm_mmap_pgoff+0xf4/0x1b8
ksys_mmap_pgoff+0x18c/0x218
__arm64_sys_mmap+0x38/0x58
invoke_syscall+0x50/0x128
el0_svc_common.constprop.0+0x58/0x188
do_el0_svc+0x34/0x50
el0_svc+0x34/0x108
el0t_64_sync_handler+0xb8/0xc0
el0t_64_sync+0x1a4/0x1a8
'rb->aux_pages' allocated by kcalloc() is a pointer array which is used to
maintains AUX trace pages. The allocated page for this array is physically
contiguous (and virtually contiguous) with an order of 0..MAX_ORDER. If the
size of pointer array crosses the limitation set by MAX_ORDER, it reveals a
WARNING.
So bail out early with -ENOMEM if the request AUX area is out of bound,
e.g.:
#perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1
failed to mmap with 12 (Cannot allocate memory)
Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-28 16:50:13 +00:00
bpf: Avoid deadlock when using queue and stack maps from NMI
2023-10-10 21:46:36 +02:00
cgroup: Remove duplicates in cgroup v1 tasks file
2023-10-25 11:53:19 +02:00
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2023-04-20 12:07:32 +02:00
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
perf/core: Bail out early if the request AUX area is out of bound
2023-11-28 16:50:13 +00:00
gcov: add support for checksum field
2023-01-18 11:41:42 +01:00
genirq/matrix: Exclude managed interrupts in irq_matrix_allocated()
2023-11-20 10:30:08 +01:00
livepatch: fix race between fork and KLP transition
2022-10-26 13:22:18 +02:00
locking/ww_mutex/test: Fix potential workqueue corruption
2023-11-28 16:50:13 +00:00
PM: hibernate: Fix mistake in kerneldoc comment
2023-01-18 11:40:53 +01:00
printk: fix return value of printk.devkmsg __setup handler
2022-04-15 14:18:08 +02:00
rcu: Suppress smp_processor_id() complaint in synchronize_rcu_expedited_wait()
2023-03-11 16:43:54 +01:00
sched/fair: Don't balance task to its current running CPU
2023-07-27 08:37:42 +02:00
posix-timers: Ensure timer ID search-loop limit is valid
2023-07-27 08:37:42 +02:00
tracing: relax trace_event_eval_update() execution with cond_resched()
2023-10-25 11:53:23 +02:00
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
acct: fix potential integer overflow in encode_comp_t()
2023-01-18 11:41:34 +01:00
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
audit: log AUDIT_TIME_* records only from rules
2022-04-15 14:18:04 +02:00
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-09-05 10:27:38 +02:00
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-09-03 10:08:16 +02:00
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:17:32 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix possible soft lockup in __audit_inode_child()
2023-09-23 10:59:46 +02:00
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2023-04-20 12:07:32 +02:00
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-04-05 11:16:42 +02:00
random: clear fast pool, crng, and batches in cpuhp bring up
2022-06-22 14:11:12 +02:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
kernel/extable.c: use address-of operator on section symbols
2023-06-09 10:29:01 +02:00
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 16:44:15 +01:00
kernel/fork: beware of __put_task_struct() calling context
2023-09-23 11:00:03 +02:00
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:16:44 +02:00
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
kexec: fix a memory leak in crash_shrink_memory()
2023-07-27 08:37:10 +02:00
kexec: support purgatories with .text.hot sections
2023-06-21 15:44:10 +02:00
kheaders: Use array declaration instead of char
2023-05-17 11:35:33 +02:00
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
2023-03-11 16:44:02 +01:00
kthread: Fix PF_KTHREAD vs to_kthread() race
2021-09-12 08:56:39 +02:00
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules
2023-09-23 10:59:36 +02:00
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
2020-10-01 13:17:23 +02:00
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
exit: Use READ_ONCE() for all oops/warn limit reads
2023-02-06 07:52:50 +01:00
memcg: enable accounting for pids in nested pid namespaces
2021-09-22 12:26:37 +02:00
profiling: fix shift too large makes kernel panic
2022-08-25 11:18:02 +02:00
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-14 18:11:24 +02:00
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:20:30 +01:00
relayfs: fix out-of-bounds access in relay_file_read
2023-05-17 11:35:58 +02:00
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:52:53 +01:00
signal handling: don't use BUG_ON() for debugging
2022-07-21 20:59:27 +02:00
smp: Fix offline cpu check in flush_smp_call_function_queue()
2022-04-20 09:19:39 +02:00
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
prlimit: do_prlimit needs to have a speculation check
2023-01-24 07:17:59 +01:00
kernel/sys_ni: add compat entry for fadvise64_64
2022-09-05 10:27:38 +02:00
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
mm: allow a controlled amount of unfairness in the page lock
2023-08-30 16:27:26 +02:00
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
2021-07-14 16:53:08 +02:00
taskstats: Cleanup the use of task->exit_code
2022-02-23 11:59:57 +01:00
usermodehelper: reset umask to default before executing user process
2020-10-14 10:32:58 +02:00
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:44:33 +02:00
watchdog: export lockup_detector_reconfigure
2022-08-25 11:18:37 +02:00
watchdog/perf: more properly prevent false positives with turbo modes
2023-07-27 08:37:10 +02:00
workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()
2023-10-25 11:53:18 +02:00
788c0b3442