Linus Torvalds 3fdacf402b tracing: Fix the histogram logic from possibly crashing the kernel ... Working on the histogram code, I found that if you dereference a char pointer in a trace event that happens to point to user space, it can crash the kernel, as it does no checks of that pointer. I have code coming that will do this better, so just remove this ability to treat character pointers in trace events as stings in the histogram. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYPH9FRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qsyhAQDKiQzVJtjfsNbIWliDQOaUwJMO9tNl Qu5TUDmPbAA4fwD+MgYsnITPL+o/YcKQ+aMdj/wLLMKfIjhNkFY8wqdLvwg= =CN97 -----END PGP SIGNATURE----- Merge tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Fix the histogram logic from possibly crashing the kernel Working on the histogram code, I found that if you dereference a char pointer in a trace event that happens to point to user space, it can crash the kernel, as it does no checks of that pointer. I have code coming that will do this better, so just remove this ability to treat character pointers in trace events as stings in the histogram" * tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Do not reference char * as a string in histograms		2021-07-17 12:36:51 -07:00
..
bpf	bpf: Track subprog poke descriptors correctly and fix use-after-free	2021-07-09 12:08:27 +02:00
cgroup	fs: add vfs_parse_fs_param_source() helper	2021-07-14 09:19:06 -07:00
configs	drivers/char: remove /dev/kmem for good	2021-05-07 00:26:34 -07:00
debug	kernel: debug: Fix unreachable code in gdb_serial_stub()	2021-07-12 11:03:35 -05:00
dma	dma-mapping updates for Linux 5.14	2021-07-02 13:31:08 -07:00
entry	tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed	2021-05-31 10:14:49 +02:00
events	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
gcov	Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR	2021-06-22 11:07:18 -07:00
irq	irqchip fixes for 5.14, take #1	2021-07-09 15:35:13 +02:00
kcsan	Merge branch 'kcsan.2021.05.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu	2021-07-04 12:29:16 -07:00
livepatch	Livepatching changes for 5.13	2021-04-27 18:14:38 -07:00
locking	Locking fixes:	2021-07-11 11:06:09 -07:00
power	PM: hibernate: disable when there are active secretmem users	2021-07-08 11:48:21 -07:00
printk	printk changes for 5.14	2021-06-29 12:07:18 -07:00
rcu	rcu: Fix pr_info() formats and values in show_rcu_gp_kthreads()	2021-07-06 15:53:12 -07:00
sched	Three fixes:	2021-07-11 11:13:57 -07:00
time	Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu	2021-07-04 12:58:33 -07:00
trace	tracing: Fix the histogram logic from possibly crashing the kernel	2021-07-17 12:36:51 -07:00
.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	sched/core: Disable CONFIG_SCHED_CORE by default	2021-06-28 22:43:05 +02:00
Makefile	kbuild: update config_data.gz only when the content of .config is changed	2021-05-02 00:43:35 +09:00
acct.c	kernel/acct.c: use #elif instead of #end and #elif	2020-12-15 22:46:15 -08:00
async.c	kernel/async.c: remove async_unregister_domain()	2021-05-07 00:26:33 -07:00
audit.c	lsm: separate security_task_getsecid() into subjective and objective variants	2021-03-22 15:23:32 -04:00
audit.h	audit: remove trailing spaces and tabs	2021-06-10 20:59:05 -04:00
audit_fsnotify.c	audit_alloc_mark(): don't open-code ERR_CAST()	2021-02-23 10:25:27 -05:00
audit_tree.c	audit: Use list_move instead of list_del/list_add	2021-06-08 22:18:35 -04:00
audit_watch.c	fsnotify: generalize handle_inode_event()	2020-12-03 14:58:35 +01:00
auditfilter.c	lsm: separate security_task_getsecid() into subjective and objective variants	2021-03-22 15:23:32 -04:00
auditsc.c	audit: remove trailing spaces and tabs	2021-06-10 20:59:05 -04:00
backtracetest.c	…
bounds.c	…
capability.c	capability: handle idmapped mounts	2021-01-24 14:27:16 +01:00
cfi.c	add support for Clang CFI	2021-04-08 16:04:20 -07:00
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	A fix for the CPU hotplug and cpusets interaction:	2021-06-29 12:23:02 -07:00
cpu_pm.c	…
crash_core.c	kdump: use vmlinux_build_id to simplify	2021-07-08 11:48:22 -07:00
crash_dump.c	…
cred.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
delayacct.c	delayacct: Add sysctl to enable at runtime	2021-05-12 11:43:25 +02:00
dma.c	…
exec_domain.c	…
exit.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
extable.c	…
fail_function.c	fault-injection: handle EI_ETYPE_TRUE	2020-12-15 22:46:19 -08:00
fork.c	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
freezer.c	sched: Add get_current_state()	2021-06-18 11:43:08 +02:00
futex.c	Locking changes for this cycle:	2021-06-28 11:45:29 -07:00
gen_kheaders.sh	kbuild: clean up ${quiet} checks in shell scripts	2021-05-27 04:01:50 +09:00
groups.c	groups: simplify struct group_info allocation	2021-02-26 09:41:03 -08:00
hung_task.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
iomem.c	…
irq_work.c	irq_work: Make irq_work_queue() NMI-safe again	2021-06-10 10:00:08 +02:00
jump_label.c	jump_label: Fix jump_label_text_reserved() vs __init	2021-07-05 10:46:20 +02:00
kallsyms.c	module: add printk formats to add module build ID to stacktraces	2021-07-08 11:48:22 -07:00
kcmp.c	Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2020-12-15 19:36:48 -08:00
kcov.c	kernel: make kcov_common_handle consider the current context	2020-11-02 18:00:20 -08:00
kexec.c	…
kexec_core.c	kernel.h: split out panic and oops helpers	2021-07-01 11:06:04 -07:00
kexec_elf.c	…
kexec_file.c	kernel: kexec_file: fix error return code of kexec_calculate_store_digests()	2021-05-07 00:26:32 -07:00
kexec_internal.h	kexec: move machine_kexec_post_load() to public interface	2021-02-22 12:33:26 +00:00
kheaders.c	…
kmod.c	modules: add CONFIG_MODPROBE_PATH	2021-05-07 00:26:33 -07:00
kprobes.c	Locking fixes:	2021-07-11 11:06:09 -07:00
ksysfs.c	…
kthread.c	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
latencytop.c	…
module-internal.h	…
module.c	module: add printk formats to add module build ID to stacktraces	2021-07-08 11:48:22 -07:00
module_signature.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
module_signing.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
notifier.c	…
nsproxy.c	fixes-v5.11	2020-12-14 16:40:27 -08:00
padata.c	…
panic.c	kernel.h: split out panic and oops helpers	2021-07-01 11:06:04 -07:00
params.c	Modules updates for v5.11	2020-12-17 13:01:31 -08:00
pid.c	Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2020-12-15 19:36:48 -08:00
pid_namespace.c	fixes-v5.11	2020-12-14 16:40:27 -08:00
profile.c	kernel: Initialize cpumask before parsing	2021-04-10 13:35:54 +02:00
ptrace.c	sched: Change task_struct::state	2021-06-18 11:43:09 +02:00
range.c	kernel.h: split out min()/max() et al. helpers	2020-10-16 11:11:19 -07:00
reboot.c	reboot: Add hardware protection power-off	2021-06-21 13:08:36 +01:00
regset.c	…
relay.c	relay: allow the use of const callback structs	2020-12-15 22:46:18 -08:00
resource.c	kernel/resource: fix return code check in __request_free_mem_region	2021-05-14 19:41:32 -07:00
resource_kunit.c	resource: provide meaningful MODULE_LICENSE() in test suite	2020-11-25 18:52:35 +01:00
rseq.c	rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()	2021-04-14 18:04:09 +02:00
scftorture.c	scftorture: Avoid false-positive warnings in scftorture_invoker()	2021-07-06 12:37:55 -07:00
scs.c	scs: switch to vmapped shadow stacks	2020-12-01 10:30:28 +00:00
seccomp.c	seccomp: Support atomic "addfd + send reply"	2021-06-28 12:49:52 -07:00
signal.c	Fix UCOUNT_RLIMIT_SIGPENDING counter leak	2021-07-08 11:43:24 -07:00
smp.c	smp: Fix smp_call_function_single_async prototype	2021-05-06 15:33:49 +02:00
smpboot.c	sched/core: Initialize the idle task with preemption disabled	2021-05-12 13:01:45 +02:00
smpboot.h	…
softirq.c	sched: Introduce task_is_running()	2021-06-18 11:43:07 +02:00
stackleak.c	…
stacktrace.c	…
static_call.c	static_call: Fix static_call_text_reserved() vs __init	2021-07-05 10:46:33 +02:00
stop_machine.c	stop_machine: Add caller debug info to queue_stop_cpus_work	2021-03-23 16:01:58 +01:00
sys.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
sys_ni.c	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
sysctl-test.c	kernel/sysctl-test: Remove some casts which are no-longer required	2021-06-23 16:41:24 -06:00
sysctl.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
task_work.c	kasan: record task_work_add() call stack	2021-04-30 11:20:42 -07:00
taskstats.c	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
test_kprobes.c	…
torture.c	torture: Replace torture_init_begin string with %s	2021-03-08 14:22:28 -08:00
tracepoint.c	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing	2021-06-29 11:51:25 -04:00
tsacct.c	…
ucount.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
uid16.c	…
uid16.h	…
umh.c	kernel/umh.c: fix some spelling mistakes	2021-05-07 00:26:34 -07:00
up.c	A set of locking related fixes and updates:	2021-05-09 13:07:03 -07:00
user-return-notifier.c	…
user.c	Reimplement RLIMIT_MEMLOCK on top of ucounts	2021-04-30 14:14:02 -05:00
user_namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
usermode_driver.c	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
utsname.c	…
utsname_sysctl.c	…
watch_queue.c	watch_queue: rectify kernel-doc for init_watch()	2021-01-26 11:16:34 +00:00
watchdog.c	kernel: watchdog: modify the explanation related to watchdog thread	2021-06-29 10:53:46 -07:00
watchdog_hld.c	…
workqueue.c	wq: handle VM suspension in stall detection	2021-05-20 12:58:30 -04:00
workqueue_internal.h	…