Chen Zhongjin 2a49b025c3 kprobes: Forbid probing on trampoline and BPF code areas ... [ Upstream commit 28f6c37a2910f565b4f5960df52b2eccae28c891 ] kernel_text_address() treats ftrace_trampoline, kprobe_insn_slot and bpf_text_address as valid kprobe addresses - which is not ideal. These text areas are removable and changeable without any notification to kprobes, and probing on them can trigger unexpected behavior: https://lkml.org/lkml/2022/7/26/1148 Considering that jump_label and static_call text are already forbiden to probe, kernel_text_address() should be replaced with core_kernel_text() and is_module_text_address() to check other text areas which are unsafe to kprobe. [ mingo: Rewrote the changelog. ] Fixes: 5b485629ba ("kprobes, extable: Identify kprobes trampolines as kernel text area") Fixes: 74451e66d5 ("bpf: make jited programs visible in traces") Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20220801033719.228248-1-chenzhongjin@huawei.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-08-21 15:16:11 +02:00
..
bpf	bpf: Fix subprog names in stack traces.	2022-08-21 15:15:47 +02:00
cgroup	cgroup: Use separate src/dst nodes when preloading css_sets for migration	2022-07-21 21:20:00 +02:00
configs	…
debug	lockdown: also lock down previous kgdb use	2022-05-30 09:33:22 +02:00
dma	dma-direct: don't over-decrypt memory	2022-06-22 14:13:20 +02:00
entry	KVM: rseq: Update rseq when processing NOTIFY_RESUME on xfer to KVM guest	2021-10-06 15:55:49 +02:00
events	perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()	2022-07-29 17:19:11 +02:00
gcov	gcov: re-fix clang-11+ support	2021-04-14 08:41:58 +02:00
irq	genirq: GENERIC_IRQ_IPI depends on SMP	2022-08-21 15:15:28 +02:00
kcsan	kcsan: Fix debugfs initcall return type	2021-05-26 12:06:54 +02:00
livepatch	livepatch: Fix build failure on 32 bits processors	2022-04-08 14:40:15 +02:00
locking	locking/lockdep: Fix lockdep_init_map_*() confusion	2022-08-21 15:15:33 +02:00
power	PM: hibernate: defer device probing when resuming from hibernation	2022-08-21 15:15:31 +02:00
printk	printk: fix return value of printk.devkmsg __setup handler	2022-04-08 14:40:08 +02:00
rcu	rcu: Make TASKS_RUDE_RCU select IRQ_WORK	2022-06-09 10:20:51 +02:00
sched	nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt()	2022-08-21 15:15:36 +02:00
time	wireguard: ratelimiter: use hrtimer in selftest	2022-08-21 15:15:52 +02:00
trace	blktrace: Trace remapped requests correctly	2022-08-21 15:15:36 +02:00
.gitignore	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:47:37 +02:00
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:47:37 +02:00
acct.c	…
async.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2022-02-23 12:01:00 +01:00
audit.c	audit: improve audit queue handling when "audit=1" on cmdline	2022-02-08 18:30:34 +01:00
audit.h	audit: log AUDIT_TIME_* records only from rules	2022-04-08 14:40:00 +02:00
audit_fsnotify.c	…
audit_tree.c	audit: move put_tree() to avoid trim_trees refcount underflow and UAF	2021-09-03 10:09:31 +02:00
audit_watch.c	…
auditfilter.c	…
auditsc.c	audit: log AUDIT_TIME_* records only from rules	2022-04-08 14:40:00 +02:00
backtracetest.c	…
bounds.c	…
capability.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	random: clear fast pool, crng, and batches in cpuhp bring up	2022-05-30 09:33:36 +02:00
cpu_pm.c	PM: cpu: Make notifier chain use a raw_spinlock_t	2021-09-15 09:50:40 +02:00
crash_core.c	crash_core, vmcoreinfo: append 'SECTION_SIZE_BITS' to vmcoreinfo	2021-06-23 14:42:52 +02:00
crash_dump.c	…
cred.c	Revert "Add a reference to ucounts for each cred"	2021-09-08 08:49:00 +02:00
delayacct.c	…
dma.c	…
exec_domain.c	…
exit.c	fix race between exit_itimers() and /proc/pid/timers	2022-07-21 21:19:59 +02:00
extable.c	…
fail_function.c	…
fork.c	copy_process(): Move fd_install() out of sighand->siglock critical section	2022-02-23 12:01:08 +01:00
freezer.c	Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"	2021-04-07 15:00:14 +02:00
futex.c	mm, futex: fix shared futex pgoff on shmem huge page	2021-06-30 08:47:29 -04:00
gen_kheaders.sh	…
groups.c	…
hung_task.c	…
iomem.c	…
irq_work.c	…
jump_label.c	jump_label: Fix jump_label_text_reserved() vs __init	2021-07-20 16:05:58 +02:00
kallsyms.c	…
kcmp.c	…
kcov.c	…
kexec.c	…
kexec_core.c	…
kexec_elf.c	…
kexec_file.c	ima: force signature verification when CONFIG_KEXEC_SIG is configured	2022-07-21 21:20:11 +02:00
kexec_internal.h	…
kheaders.c	…
kmod.c	…
kprobes.c	kprobes: Forbid probing on trampoline and BPF code areas	2022-08-21 15:16:11 +02:00
ksysfs.c	…
kthread.c	kthread: Fix PF_KTHREAD vs to_kthread() race	2021-09-03 10:09:31 +02:00
latencytop.c	…
module-internal.h	…
module.c	module: check for exit sections in layout_sections() instead of module_init_section()	2022-05-25 09:18:02 +02:00
module_signature.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
module_signing.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
notifier.c	…
nsproxy.c	…
padata.c	…
panic.c	…
params.c	…
pid.c	…
pid_namespace.c	memcg: enable accounting for pids in nested pid namespaces	2021-09-18 13:40:36 +02:00
profile.c	profiling: fix shift too large makes kernel panic	2022-08-21 15:16:05 +02:00
ptrace.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-06-09 10:20:49 +02:00
range.c	…
reboot.c	…
regset.c	…
relay.c	…
resource.c	kernel/resource: make walk_mem_res() find all busy IORESOURCE_MEM resources	2021-05-19 10:13:09 +02:00
rseq.c	rseq: Remove broken uapi field layout on 32-bit little endian	2022-04-08 14:40:03 +02:00
scftorture.c	scftorture: Fix distribution of short handler delays	2022-06-09 10:21:01 +02:00
scs.c	…
seccomp.c	seccomp: Fix setting loaded filter count during TSYNC	2021-08-18 08:59:06 +02:00
signal.c	signal handling: don't use BUG_ON() for debugging	2022-07-21 21:20:18 +02:00
smp.c	smp: Fix offline cpu check in flush_smp_call_function_queue()	2022-04-20 09:23:29 +02:00
smpboot.c	sched/core: Initialize the idle task with preemption disabled	2021-07-14 16:55:50 +02:00
smpboot.h	…
softirq.c	…
stackleak.c	gcc-plugins/stackleak: Use noinstr in favor of notrace	2022-02-23 12:01:00 +01:00
stacktrace.c	…
static_call.c	static_call: Fix unused variable warn w/o MODULE	2021-09-08 08:49:00 +02:00
stop_machine.c	…
sys.c	prctl: allow to setup brk for et_dyn executables	2021-09-26 14:08:57 +02:00
sys_ni.c	…
sysctl-test.c	…
sysctl.c	mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE	2022-07-21 21:20:13 +02:00
task_work.c	…
taskstats.c	…
test_kprobes.c	…
torture.c	…
tracepoint.c	tracepoint: Use rcu get state and cond sync for static call updates	2021-09-03 10:09:30 +02:00
tsacct.c	taskstats: Cleanup the use of task->exit_code	2022-01-27 10:54:33 +01:00
ucount.c	Revert "Add a reference to ucounts for each cred"	2021-09-08 08:49:00 +02:00
uid16.c	…
uid16.h	…
umh.c	…
up.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:50:46 +02:00
user-return-notifier.c	…
user.c	…
user_namespace.c	Revert "Add a reference to ucounts for each cred"	2021-09-08 08:49:00 +02:00
usermode_driver.c	bpf: Fix umd memory leak in copy_process()	2021-03-30 14:32:03 +02:00
utsname.c	…
utsname_sysctl.c	…
watch_queue.c	watch_queue: Fix missing locking in add_watch_to_object()	2022-08-03 12:00:44 +02:00
watchdog.c	watchdog: fix barriers when printing backtraces from all CPUs	2021-05-19 10:13:00 +02:00
watchdog_hld.c	…
workqueue.c	workqueue: Fix unbind_workers() VS wq_worker_running() race	2022-01-16 09:14:22 +01:00
workqueue_internal.h	…