Pengpeng HouandGreg Kroah-Hartman 3fa363a40d tracing/probe: reject non-closed empty immediate strings ...

[ Upstream commit 4346be6577 ]

parse_probe_arg() accepts quoted immediate strings and passes the body
after the opening quote to __parse_imm_string(). That helper currently
computes strlen(str) and immediately dereferences str[len - 1], which
underflows when the body is empty and not closed with double-quotation.

Reject empty non-closed immediate strings before checking for the closing quote.

Link: https://lore.kernel.org/all/20260401160315.88518-1-pengpeng@iscas.ac.cn/

Fixes: a42e3c4de9 ("tracing/probe: Add immediate string parameter support")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-06-01 17:35:02 +02:00

..

bpf

bpf: reject direct access to nullable PTR_TO_BUF pointers

2026-04-18 10:33:31 +02:00

cgroup

cgroup: fix race between task migration and iteration

2026-04-18 10:33:13 +02:00

configs

…

debug

kdb: Do not assume write() callback available

2025-03-13 12:50:45 +01:00

dma

dma/pool: distinguish between missing and exhausted atomic pools

2026-02-06 16:42:00 +01:00

entry

entry: Respect changes to system call number by trace_sys_enter()

2024-04-10 16:18:46 +02:00

events

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

2025-12-07 06:09:17 +09:00

futex

futex: Clear stale exiting pointer in futex_lock_pi() retry path

2026-04-18 10:33:28 +02:00

gcov

gcov: add support for GCC 15

2025-12-07 06:09:29 +09:00

irq

genirq/irq_sim: Initialize work context pointers properly

2026-02-06 16:42:05 +01:00

kcsan

kcsan: Turn report_filterlist_lock into a raw_spinlock

2024-12-14 19:51:35 +01:00

livepatch

livepatch: Match old_sympos 0 and 1 in klp_find_func()

2026-01-19 13:09:42 +01:00

locking

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

2026-01-19 13:09:19 +01:00

power

PM: sleep: console: Fix the black screen issue

2025-08-28 16:24:18 +02:00

printk

printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX

2025-03-13 12:50:17 +01:00

rcu

rcu: Protect ->defer_qs_iw_pending from data race

2025-08-28 16:24:20 +02:00

sched

sched: idle: Consolidate the handling of two special cases

2026-04-18 10:33:21 +02:00

time

alarmtimer: Fix argument order in alarm_timer_forward()

2026-04-18 10:33:27 +02:00

trace

tracing/probe: reject non-closed empty immediate strings

2026-06-01 17:35:02 +02:00

.gitignore

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acct.c

acct: block access to kernel internal filesystems

2025-03-13 12:50:54 +01:00

async.c

async: Introduce async_schedule_dev_nocall()

2024-02-23 08:54:25 +01:00

audit_fsnotify.c

fsnotify: make allow_dups a property of the group

2024-04-10 16:19:02 +02:00

audit_tree.c

fsnotify: pass flags argument to fsnotify_alloc_group()

2024-04-10 16:19:02 +02:00

audit_watch.c

fsnotify: pass flags argument to fsnotify_alloc_group()

2024-04-10 16:19:02 +02:00

audit.c

audit: Send netlink ACK before setting connection in auditd_set

2024-02-23 08:54:37 +01:00

audit.h

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auditfilter.c

ima: Avoid blocking in RCU read-side critical section

2024-07-18 13:07:34 +02:00

auditsc.c

audit: fix possible soft lockup in __audit_inode_child()

2023-09-19 12:22:39 +02:00

backtracetest.c

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bounds.c

bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS

2024-05-02 16:24:50 +02:00

capability.c

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cfi.c

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compat.c

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configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

hrtimers: Handle CPU state correctly on hotplug

2025-01-23 17:16:02 +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 15:17:37 +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

2026-05-15 14:48:45 +02:00

extable.c

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fail_function.c

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fork.c

unshare: fix unshare_fs() handling

2026-04-18 10:33:11 +02:00

freezer.c

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gen_kheaders.sh

kheaders: Ignore silly-rename files

2025-01-23 17:16:00 +01:00

groups.c

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hung_task.c

hung_task: move hung_task sysctl interface to hung_task.c

2025-03-13 12:49:50 +01:00

iomem.c

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irq_work.c

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jump_label.c

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kallsyms.c

kallsyms: Make kallsyms_on_each_symbol generally available

2023-12-13 18:36:45 +01:00

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

kcov: mark in_softirq_really() as __always_inline

2025-01-09 13:28:50 +01:00

kexec_core.c

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kexec_elf.c

kexec: initialize ELF lowest address to ULONG_MAX

2025-04-10 14:32:01 +02:00

kexec_file.c

kexec: derive purgatory entry from symbol

2026-03-04 07:20:32 -05:00

kexec_internal.h

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kexec.c

kernel: kexec: copy user-array safely

2023-11-28 16:56:16 +00:00

kheaders.c

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kmod.c

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kprobes.c

kprobes: Fix to check symbol prefixes correctly

2024-08-19 05:45:42 +02:00

ksysfs.c

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kthread.c

kthread: unpark only parked kthread

2024-10-17 15:12:00 +02:00

latencytop.c

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Makefile

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module_signature.c

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module_signing.c

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module-internal.h

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module.c

module: Fix kernel panic when a symbol st_shndx is out of bounds

2026-04-18 10:33:23 +02:00

notifier.c

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nsproxy.c

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padata.c

padata: Reset next CPU when reorder sequence wraps around

2025-10-29 14:03:14 +01:00

panic.c

panic: Flush kernel log buffer at the end

2024-04-13 13:01:43 +02:00

params.c

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

2025-05-18 08:20:37 +02:00

pid_namespace.c

zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING

2024-07-05 09:14:24 +02:00

pid.c

pid: Add a judgment for ns null in pid_nr_ns

2025-10-19 16:21:54 +02:00

profile.c

profiling: remove profile=sleep support

2024-08-19 05:45:39 +02:00

ptrace.c

ptrace: slightly saner 'get_dumpable()' logic

2026-05-15 14:48:45 +02:00

range.c

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reboot.c

kernel/reboot: emergency_restart: Set correct system_state

2023-11-28 16:56:31 +00:00

regset.c

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relay.c

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resource_kunit.c

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resource.c

resource: fix region_intersects() vs add_memory_driver_managed()

2024-10-17 15:11:59 +02:00

rseq.c

rseq: Fix segfault on registration when rseq_cs is non-zero

2025-07-17 18:30:55 +02:00

scftorture.c

scftorture: Forgive memory-allocation failure if KASAN

2023-09-23 11:09:55 +02:00

scs.c

scs: fix a wrong parameter in __scs_magic

2026-01-19 13:09:52 +01:00

seccomp.c

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signal.c

signal: Replace BUG_ON()s

2024-10-17 15:11:27 +02:00

smp.c

smp: Fix up and expand the smp_call_function_many() kerneldoc

2025-10-19 16:21:31 +02:00

smpboot.c

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smpboot.h

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softirq.c

lockdep: Fix wait context check on softirq for PREEMPT_RT

2025-06-04 14:37:55 +02:00

stackleak.c

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stacktrace.c

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static_call_inline.c

x86/static-call: provide a way to do very early static-call updates

2024-12-19 18:07:22 +01:00

static_call.c

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stop_machine.c

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sys_ni.c

syscalls: fix compat_sys_io_pgetevents_time64 usage

2024-07-05 09:14:50 +02:00

sys.c

getrusage: use sig->stats_lock rather than lock_task_sighand()

2024-03-15 10:48:22 -04:00

sysctl-test.c

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sysctl.c

sysctl: fix uninitialized variable in proc_do_large_bitmap

2026-04-18 10:33:27 +02:00

task_work.c

task_work: Introduce task_work_cancel() again

2024-08-19 05:45:13 +02:00

taskstats.c

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test_kprobes.c

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torture.c

torture: Fix hang during kthread shutdown phase

2023-08-30 16:18:19 +02:00

tracepoint.c

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tsacct.c

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ucount.c

ucount: check for CAP_SYS_RESOURCE using ns_capable_noaudit()

2026-03-04 07:19:35 -05:00

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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usermode_driver.c

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utsname_sysctl.c

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utsname.c

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watch_queue.c

watch_queue: fix pipe accounting mismatch

2025-04-10 14:31:57 +02:00

watchdog_hld.c

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

2024-08-19 05:45:20 +02:00

watchdog.c

watchdog: move softlockup_panic back to early_param

2023-11-28 16:56:28 +00:00

workqueue_internal.h

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workqueue.c

workqueue: Improve scalability of workqueue watchdog touch

2024-09-12 11:07:52 +02:00