linux-stable/kernel
Yang Jihong e61e5ab5c5 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 11:15:52 +01:00
..
bpf bpf: Resolve fext program type when checking map compatibility 2023-01-07 11:15:47 +01:00
cgroup memcg: fix possible use-after-free in memcg_write_event_control() 2022-12-14 11:40:52 +01:00
configs xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
debug Modules updates for v5.19-rc1 2022-05-26 17:13:43 -07:00
dma dma-mapping: mark dma_supported static 2022-09-07 10:38:28 +02:00
entry context_tracking: Take NMI eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
events perf/core: Call LSM hook after copying perf_event_attr 2023-01-07 11:15:50 +01:00
futex futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error 2023-01-04 11:26:28 +01:00
gcov gcov: add support for checksum field 2022-12-31 13:26:53 +01:00
irq genirq/irqdesc: Don't try to remove non-existing sysfs files 2022-12-31 13:25:45 +01:00
kcsan kcsan: Instrument memcpy/memset/memmove with newer Clang 2023-01-04 11:26:32 +01:00
livepatch livepatch: fix race between fork and KLP transition 2022-10-21 12:37:51 +02:00
locking rtmutex: Add acquire semantics for rtmutex lock acquisition slow path 2023-01-04 11:26:28 +01:00
module module: Fix NULL vs IS_ERR checking for module_get_next_page 2022-12-31 13:25:57 +01:00
power PM: hibernate: Fix mistake in kerneldoc comment 2022-12-31 13:25:42 +01:00
printk printk: do not wait for consoles when suspended 2022-07-15 10:52:11 +02:00
rcu rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state() 2022-12-31 13:26:40 +01:00
sched sched/psi: Fix possible missing or delayed pending event 2022-12-31 13:25:42 +01:00
time time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64 2022-08-09 20:02:13 +02:00
trace tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line 2023-01-07 11:15:52 +01:00
.gitignore
acct.c acct: fix potential integer overflow in encode_comp_t() 2022-12-31 13:26:41 +01:00
async.c
audit.c audit: make is_audit_feature_set() static 2022-06-13 14:08:57 -04:00
audit.h
audit_fsnotify.c audit: fix potential double free on error path from fsnotify_add_inode_mark 2022-08-22 18:50:06 -04:00
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c audit: free audit_proctitle only on task exit 2022-10-21 12:38:04 +02:00
backtracetest.c
bounds.c
capability.c
cfi.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
compat.c
configs.c
context_tracking.c MAINTAINERS: Add Paul as context tracking maintainer 2022-07-05 13:33:00 -07:00
cpu.c cpu/hotplug: Do not bail-out in DYING/STARTING sections 2022-12-31 13:25:46 +01:00
cpu_pm.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
crash_core.c vmcoreinfo: add kallsyms_num_syms symbol 2022-08-28 14:02:44 -07:00
crash_dump.c
cred.c
delayacct.c delayacct: track delays from write-protect copy 2022-06-01 15:55:25 -07:00
dma.c
exec_domain.c
exit.c exit: Fix typo in comment: s/sub-theads/sub-threads 2022-08-03 10:44:54 +02:00
extable.c context_tracking: Take NMI eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
fail_function.c
fork.c seccomp: Move copy_seccomp() to no failure path. 2022-12-31 13:25:40 +01:00
freezer.c
gen_kheaders.sh kheaders: Have cpio unconditionally replace files 2022-05-08 03:16:59 +09:00
groups.c security: Add LSM hook to setgroups() syscall 2022-07-15 18:21:49 +00:00
hung_task.c kernel/hung_task: fix address space of proc_dohung_task_timeout_secs 2022-07-29 18:12:35 -07:00
iomem.c
irq_work.c
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kallsyms.c Updates to various subsystems which I help look after. lib, ocfs2, 2022-08-07 10:03:24 -07:00
kallsyms_internal.h kallsyms: move declarations to internal header 2022-07-17 17:31:39 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c kcov: update pos before writing pc in trace function 2022-05-25 13:05:42 -07:00
kexec.c
kexec_core.c kexec: drop weak attribute from functions 2022-07-15 12:21:16 -04:00
kexec_elf.c
kexec_file.c Updates to various subsystems which I help look after. lib, ocfs2, 2022-08-07 10:03:24 -07:00
kexec_internal.h
kheaders.c
kmod.c
kprobes.c kprobes: kretprobe events missing on 2-core KVM guest 2023-01-04 11:26:27 +01:00
ksysfs.c
kthread.c kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal 2022-06-16 19:11:30 -07:00
latencytop.c
Makefile kernel: remove platform_has() infrastructure 2022-08-01 07:42:56 +02:00
module_signature.c
notifier.c notifier: Add blocking/atomic_notifier_chain_register_unique_prio() 2022-05-19 19:30:30 +02:00
nsproxy.c Revert "fs/exec: allow to unshare a time namespace on vfork+exec" 2022-09-13 10:38:43 -07:00
padata.c padata: Fix list iterator in padata_do_serial() 2022-12-31 13:26:20 +01:00
panic.c linux-kselftest-kunit-5.20-rc1 2022-08-02 19:34:45 -07:00
params.c
pid.c
pid_namespace.c
profile.c profile: setup_profiling_timer() is moslty not implemented 2022-07-29 18:12:36 -07:00
ptrace.c ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced() 2022-07-09 11:06:19 -07:00
range.c
reboot.c Merge branch 'rework/kthreads' into for-linus 2022-06-23 19:11:28 +02:00
regset.c
relay.c relay: fix type mismatch when allocating memory in relay_create_buf() 2022-12-31 13:25:47 +01:00
resource.c resource: Introduce alloc_free_mem_region() 2022-07-21 17:19:25 -07:00
resource_kunit.c
rseq.c rseq: Use pr_warn_once() when deprecated/unknown ABI flags are encountered 2022-11-26 09:27:55 +01:00
scftorture.c
scs.c
seccomp.c
signal.c signal handling: don't use BUG_ON() for debugging 2022-07-07 09:53:43 -07:00
smp.c locking/csd_lock: Change csdlock_debug from early_param to __setup 2022-07-19 11:40:00 -07:00
smpboot.c
smpboot.h
softirq.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
stackleak.c stackleak: add on/off stack variants 2022-05-08 01:33:09 -07:00
stacktrace.c
static_call.c
static_call_inline.c
stop_machine.c Scheduler changes in this cycle were: 2022-05-24 11:11:13 -07:00
sys.c
sys_ni.c kernel/sys_ni: add compat entry for fadvise64_64 2022-08-20 15:17:45 -07:00
sysctl-test.c
sysctl.c proc: proc_skip_spaces() shouldn't think it is working on C strings 2022-12-08 11:30:22 +01:00
task_work.c
taskstats.c
torture.c
tracepoint.c tracepoint: Allow trace events in modules with TAINT_TEST 2022-09-06 22:26:00 -04:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c kthread: Don't allocate kthread_struct for init and umh 2022-05-06 14:49:44 -05:00
up.c
user-return-notifier.c
user.c
user_namespace.c
usermode_driver.c blob_to_mnt(): kern_unmount() is needed to undo kern_mount() 2022-05-19 23:25:47 -04:00
utsname.c
utsname_sysctl.c
watch_queue.c This was a moderately busy cycle for documentation, but nothing all that 2022-08-02 19:24:24 -07:00
watchdog.c powerpc updates for 6.0 2022-08-06 16:38:17 -07:00
watchdog_hld.c Revert "printk: add functions to prefer direct printing" 2022-06-23 18:41:40 +02:00
workqueue.c workqueue: don't skip lockdep work dependency in cancel_work_sync() 2022-08-16 06:27:35 -10:00
workqueue_internal.h