Masami Hiramatsu (Google) b154ce6905 tracing: Do not call map->ops->elt_free() if elt_alloc() fails ...

commit 8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03 upstream.

In paths where tracing_map_elt_alloc() failed to allocate objects,
the map->ops->elt_alloc() call was never successful. In this case,
map->ops->elt_free() should not be called.

Link: https://sashiko.dev/#/patchset/20260520223101.34710-1-rosenp%40gmail.com

Cc: stable@vger.kernel.org
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Rosen Penev <rosenp@gmail.com>
Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: 2734b62952 ("tracing: Add per-element variable support to tracing_map")
Link: https://patch.msgid.link/177933895460.108746.5396070821443932634.stgit@devnote2
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>

2026-06-29 10:46:12 +02:00

..

bpf

bpf: Fix regsafe() for pointers to packet

2026-05-07 10:55:23 +02:00

cgroup

cgroup/rdma: fix integer overflow in rdmacg_try_charge()

2026-06-29 10:46:07 +02:00

configs

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debug

kdb: Use the passed prompt in kdb_position_cursor()

2024-08-19 05:32:06 +02:00

dma

dma: fix call order in dmam_free_coherent

2024-08-19 05:32:06 +02:00

events

uprobe: Do not emulate/sstep original instruction when ip is changed

2025-12-22 04:34:05 +01:00

gcov

gcov: add support for GCC 15

2025-12-22 04:34:09 +01:00

irq

genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline

2024-06-16 13:23:38 +02:00

livepatch

livepatch: fix race between fork and KLP transition

2022-10-26 13:19:23 +02:00

locking

locking/spinlock/debug: Fix data-race in do_raw_write_lock

2026-01-26 16:51:54 +08:00

power

PM: sleep: console: Fix the black screen issue

2025-09-16 13:55:14 +02:00

printk

printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX

2025-04-03 10:09:48 +02:00

rcu

rcutorture: Fix rcu_torture_one_read() pipe_count overflow comment

2024-07-05 09:00:26 +02:00

sched

sched: idle: Make skipping governor callbacks more consistent

2026-05-07 10:55:15 +02:00

time

alarmtimer: Fix argument order in alarm_timer_forward()

2026-05-07 10:55:21 +02:00

trace

tracing: Do not call map->ops->elt_free() if elt_alloc() fails

2026-06-29 10:46:12 +02:00

.gitignore

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acct.c

acct: perform last write from workqueue

2025-04-04 11:11:29 +02:00

async.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

audit_fsnotify.c

audit: fix potential double free on error path from fsnotify_add_inode_mark

2022-09-05 10:26:28 +02:00

audit_tree.c

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audit_watch.c

audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()

2023-11-28 16:46:34 +00:00

audit.c

audit: enforce AUDIT_LOCKED for AUDIT_TRIM and AUDIT_MAKE_EQUIV

2026-06-29 10:46:10 +02:00

audit.h

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auditfilter.c

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auditsc.c

audit: fix incorrect inheritable capability in CAPSET records

2026-06-29 10:46:10 +02:00

backtracetest.c

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bounds.c

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capability.c

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compat.c

sched_getaffinity: don't assume 'cpumask_size()' is fully initialized

2023-04-05 11:15:39 +02:00

configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

hrtimers: Push pending hrtimers away from outgoing CPU earlier

2023-12-13 17:42:15 +01:00

crash_core.c

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crash_dump.c

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cred.c

cred: switch to using atomic_long_t

2023-12-20 15:38:01 +01:00

delayacct.c

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dma.c

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exec_domain.c

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exit.c

ptrace: slightly saner 'get_dumpable()' logic

2026-05-28 15:32:29 +08:00

extable.c

kernel/extable.c: use address-of operator on section symbols

2023-06-09 10:24:02 +02:00

fail_function.c

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fork.c

unshare: fix unshare_fs() handling

2026-05-07 10:55:14 +02:00

freezer.c

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futex.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

groups.c

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hung_task.c

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iomem.c

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irq_work.c

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jump_label.c

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kallsyms.c

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kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kcov.c

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kexec_core.c

kexec: fix a memory leak in crash_shrink_memory()

2023-08-11 11:45:06 +02:00

kexec_file.c

kexec: derive purgatory entry from symbol

2026-04-12 13:56:51 +08:00

kexec_internal.h

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kexec.c

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kmod.c

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kprobes.c

kprobes: Fix possible use-after-free issue on kprobe registration

2024-05-02 16:17:09 +02:00

ksysfs.c

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kthread.c

kthread: fix task state in kthread worker if being frozen

2024-11-08 16:19:06 +01:00

latencytop.c

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Makefile

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memremap.c

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module_signing.c

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module-internal.h

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module.c

modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules

2023-09-23 10:47:56 +02:00

notifier.c

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nsproxy.c

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padata.c

padata: fix sysfs store callback check

2025-04-03 10:09:44 +02:00

panic.c

exit: Use READ_ONCE() for all oops/warn limit reads

2023-02-06 07:49:46 +01:00

params.c

module: ensure that kobject_put() is safe for module type kobjects

2025-07-17 10:07:54 +02:00

pid_namespace.c

memcg: enable accounting for pids in nested pid namespaces

2021-09-22 11:48:09 +02:00

pid.c

pid: Add a judgment for ns null in pid_nr_ns

2025-11-17 10:36:42 +01:00

profile.c

profiling: fix shift too large makes kernel panic

2022-08-25 11:15:20 +02:00

ptrace.c

ptrace: slightly saner 'get_dumpable()' logic

2026-05-28 15:32:29 +08:00

range.c

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reboot.c

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relay.c

relayfs: fix out-of-bounds access in relay_file_read

2023-05-17 11:13:23 +02:00

resource.c

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rseq.c

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seccomp.c

seccomp: Invalidate seccomp mode to catch death failures

2022-02-16 12:51:47 +01:00

signal.c

signal: Replace BUG_ON()s

2024-11-08 16:19:12 +01:00

smp.c

smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()

2024-09-12 11:02:53 +02:00

smpboot.c

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smpboot.h

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softirq.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

kernel/sys_ni: add compat entry for fadvise64_64

2022-09-05 10:26:28 +02:00

sys.c

Revert "y2038: rusage: use __kernel_old_timeval"

2024-05-02 16:17:14 +02:00

sysctl_binary.c

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sysctl.c

sysctl: fix uninitialized variable in proc_do_large_bitmap

2026-05-07 10:55:21 +02:00

task_work.c

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taskstats.c

taskstats: set version in TGID exit notifications

2026-06-29 10:45:54 +02:00

test_kprobes.c

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torture.c

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tracepoint.c

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tsacct.c

taskstats: Cleanup the use of task->exit_code

2022-02-23 11:58:39 +01:00

ucount.c

ucount: check for CAP_SYS_RESOURCE using ns_capable_noaudit()

2026-04-09 14:44:45 +08:00

uid16.c

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uid16.h

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umh.c

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up.c

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user_namespace.c

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user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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watchdog_hld.c

watchdog/perf: properly initialize the turbo mode timestamp and rearm counter

2024-08-19 05:32:05 +02:00

watchdog.c

watchdog: export lockup_detector_reconfigure

2022-08-25 11:15:46 +02:00

workqueue_internal.h

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workqueue.c

workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()

2023-10-25 11:16:26 +02:00