linux-stable/kernel
Yang Jihong 61d589b402 tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line
commit c1ac03af6e upstream.

print_trace_line may overflow seq_file buffer. If the event is not
consumed, the while loop keeps peeking this event, causing a infinite loop.

Link: https://lkml.kernel.org/r/20221129113009.182425-1-yangjihong1@huawei.com

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 088b1e427d ("ftrace: pipe fixes")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-07 12:07:36 +01:00
..
bpf bpf: fix overflow in prog accounting 2022-08-25 11:09:24 +02:00
configs config: android: enable CONFIG_SECCOMP 2016-10-11 15:06:32 -07:00
debug kdb: Make memory allocations more robust 2021-03-03 17:44:31 +01:00
events perf: Fix possible memleak in pmu_dev_alloc() 2023-01-07 12:07:13 +01:00
gcov gcov: add support for checksum field 2023-01-07 12:07:34 +01:00
irq random: remove unused irq_flags argument from add_interrupt_randomness() 2022-06-25 11:45:04 +02:00
livepatch
locking locking/lockdep: Avoid RCU-induced noinstr fail 2021-11-26 11:48:27 +01:00
power PM: hibernate: Fix mistake in kerneldoc comment 2023-01-07 12:07:13 +01:00
printk printk: fix return value of printk.devkmsg __setup handler 2022-04-20 09:06:33 +02:00
rcu rcuperf: Fix cleanup path for invalid perf_type strings 2019-05-31 06:48:30 -07:00
sched sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa 2022-04-20 09:06:32 +02:00
time timekeeping: Add raw clock fallback for random_get_entropy() 2022-06-25 11:45:13 +02:00
trace tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line 2023-01-07 12:07:36 +01:00
.gitignore
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
Makefile elfcore: fix building with clang 2021-02-10 09:09:25 +01:00
acct.c acct: fix potential integer overflow in encode_comp_t() 2023-01-07 12:07:31 +01:00
async.c kernel/async.c: revert "async: simplify lowest_in_progress()" 2018-02-17 13:21:18 +01:00
audit.c audit: fix a net reference leak in audit_list_rules_send() 2021-04-07 12:05:41 +02:00
audit.h audit: fix a net reference leak in audit_list_rules_send() 2021-04-07 12:05:41 +02:00
audit_fsnotify.c
audit_tree.c
audit_watch.c audit: CONFIG_CHANGE don't log internal bookkeeping as an event 2020-10-01 20:40:07 +02:00
auditfilter.c audit: fix a net reference leak in audit_list_rules_send() 2021-04-07 12:05:41 +02:00
auditsc.c audit: print empty EXECVE args 2019-11-28 18:28:55 +01:00
backtracetest.c
bounds.c kbuild: fix kernel/bounds.c 'W=1' warning 2018-11-13 11:16:57 -08:00
capability.c ptrace: Capture the ptracer's creds not PT_PTRACE_CAP 2017-01-06 10:40:13 +01:00
cgroup.c cgroup-v1: Require capabilities to set release_agent 2022-02-11 08:41:17 +01:00
cgroup_freezer.c
cgroup_pids.c cgroup: pids: use atomic64_t for pids->limit 2019-12-21 10:42:02 +01:00
compat.c
configs.c
context_tracking.c
cpu.c random: clear fast pool, crng, and batches in cpuhp bring up 2022-06-25 11:45:10 +02:00
cpu_pm.c kernel/cpu_pm: Fix uninitted local in cpu_pm 2020-06-20 10:24:21 +02:00
cpuset.c sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs 2017-10-12 11:51:25 +02:00
crash_dump.c
cred.c memcg: account security cred as well to kmemcg 2020-01-12 11:24:13 +01:00
delayacct.c
dma.c
exec_domain.c
exit.c security,selinux,smack: kill security_task_wait hook 2022-07-29 17:05:44 +02:00
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 2021-09-22 11:43:08 +02:00
freezer.c
futex.c mm, futex: fix shared futex pgoff on shmem huge page 2021-07-11 12:46:40 +02:00
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 2019-04-20 09:07:52 +02:00
irq_work.c
jump_label.c jump_label: Invoke jump_label_test() via early_initcall() 2017-12-14 09:28:24 +01:00
kallsyms.c
kcmp.c
kcov.c kcov: ensure irq code sees a valid area 2018-08-03 07:55:12 +02:00
kexec.c
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] 2022-07-02 16:17:16 +02:00
kexec_internal.h
kmod.c usermodehelper: reset umask to default before executing user process 2020-10-14 09:48:14 +02:00
kprobes.c kprobes: don't call disarm_kprobe() for disabled kprobes 2022-09-05 10:23:58 +02:00
ksysfs.c
kthread.c kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() 2021-07-11 12:46:41 +02:00
latencytop.c
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 2019-01-13 10:03:51 +01:00
module-internal.h
module.c module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols 2021-03-03 17:44:44 +01:00
module_signing.c
notifier.c x86/mm: split vmalloc_sync_all() 2020-04-02 17:20:26 +02:00
nsproxy.c
padata.c padata: purge get_cpu and reorder_via_wq from padata_do_serial 2020-05-27 16:41:53 +02:00
panic.c panic: ensure preemption is disabled during panic() 2019-10-17 13:42:25 -07:00
params.c
pid.c pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid() 2018-04-13 19:47:53 +02:00
pid_namespace.c memcg: enable accounting for pids in nested pid namespaces 2021-09-22 11:43:08 +02:00
profile.c profiling: fix shift-out-of-bounds bugs 2021-09-26 13:36:18 +02:00
ptrace.c ptrace: Reimplement PTRACE_KILL by always sending SIGKILL 2022-06-14 16:52:28 +02:00
range.c
reboot.c reboot: fix overflow parsing reboot cpu number 2020-11-18 18:26:32 +01:00
relay.c kernel/relay.c: fix memleak on destroy relay channel 2020-08-26 10:29:03 +02:00
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 2021-03-03 17:44:43 +01:00
signal.c signal handling: don't use BUG_ON() for debugging 2022-07-21 20:40:32 +02:00
smp.c smp: Fix offline cpu check in flush_smp_call_function_queue() 2022-04-20 09:06:46 +02:00
smpboot.c kthread/smpboot: do not park in kthread_create_on_cpu() 2016-10-11 15:06:33 -07:00
smpboot.h
softirq.c Mark HI and TASKLET softirq synchronous 2018-08-15 18:14:42 +02:00
stacktrace.c stacktrace, lockdep: Fix address, newline ugliness 2017-02-14 15:25:42 -08:00
stop_machine.c stop_machine: Use raw spinlocks 2018-08-03 07:55:24 +02:00
sys.c prctl: allow to setup brk for et_dyn executables 2021-09-26 13:36:18 +02:00
sys_ni.c
sysctl.c proc: proc_skip_spaces() shouldn't think it is working on C strings 2022-12-08 11:15:42 +01:00
sysctl_binary.c
task_work.c
taskstats.c taskstats: fix data-race 2020-01-12 11:24:12 +01:00
test_kprobes.c
torture.c
tracepoint.c tracepoint: Do not fail unregistering a probe due to memory failure 2021-03-03 17:44:38 +01:00
tsacct.c taskstats: Cleanup the use of task->exit_code 2022-02-23 11:56:40 +01:00
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
user-return-notifier.c
user.c
user_namespace.c userns: move user access out of the mutex 2018-09-09 20:01:24 +02:00
utsname.c
utsname_sysctl.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 20:01:24 +02:00
watchdog.c kernel/watchdog: prevent false hardlockup on overloaded system 2017-06-17 06:41:57 +02:00
watchdog_hld.c kernel/watchdog: prevent false hardlockup on overloaded system 2017-06-17 06:41:57 +02:00
workqueue.c workqueue: make workqueue available early during boot 2022-06-25 11:45:09 +02:00
workqueue_internal.h workqueue: Fix NULL pointer dereference 2017-11-15 15:53:17 +01:00