Shreyas Joshi c6a9585611 printk: handle blank console arguments passed in. ... [ Upstream commit 48021f98130880dd74286459a1ef48b5e9bc374f ] If uboot passes a blank string to console_setup then it results in a trashed memory. Ultimately, the kernel crashes during freeing up the memory. This fix checks if there is a blank parameter being passed to console_setup from uboot. In case it detects that the console parameter is blank then it doesn't setup the serial device and it gracefully exits. Link: https://lore.kernel.org/r/20200522065306.83-1-shreyas.joshi@biamp.com Signed-off-by: Shreyas Joshi <shreyas.joshi@biamp.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> [pmladek@suse.com: Better format the commit message and code, remove unnecessary brackets.] Signed-off-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-01 13:14:45 +02:00
..
bpf	bpf: Remove recursion prevention from rcu free callback	2020-10-01 13:14:34 +02:00
cgroup	cgroup: add missing skcd->no_refcnt check in cgroup_sk_clone()	2020-08-19 08:14:47 +02:00
configs
debug	kgdb: Avoid suspicious RCU usage warning	2020-07-09 09:37:10 +02:00
dma	dma-debug: add a schedule point in debug_dma_dump_mappings()	2020-01-04 19:12:43 +01:00
events	uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression	2020-07-29 10:16:47 +02:00
gcov	gcov: add support for GCC 10.1	2020-09-17 13:45:31 +02:00
irq	genirq/matrix: Deal with the sillyness of for_each_cpu() on UP	2020-09-03 11:24:29 +02:00
livepatch	livepatch: Nullify obj->mod in klp_module_coming()'s error path	2019-10-07 18:57:10 +02:00
locking	locking/lockdep: Fix overflow in presentation of average lock-time	2020-09-03 11:24:21 +02:00
power	PM: hibernate: Freeze kernel threads in software_resume()	2020-05-06 08:13:28 +02:00
printk	printk: handle blank console arguments passed in.	2020-10-01 13:14:45 +02:00
rcu	rcu: Avoid data-race in rcu_gp_fqs_check_wake()	2020-02-11 04:33:55 -08:00
sched	sched: correct SD_flags returned by tl->sd_flags()	2020-08-19 08:14:47 +02:00
time	timekeeping: Prevent 32bit truncation in scale64_check_overflow()	2020-10-01 13:14:36 +02:00
trace	tracing: Use address-of operator on section symbols	2020-10-01 13:14:38 +02:00
.gitignore
acct.c
async.c
audit.c	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:05:13 +02:00
audit.h	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:05:13 +02:00
audit_fsnotify.c
audit_tree.c	audit: Embed key into chunk	2019-12-13 08:51:11 +01:00
audit_watch.c	audit: CONFIG_CHANGE don't log internal bookkeeping as an event	2020-10-01 13:14:33 +02:00
auditfilter.c	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:05:13 +02:00
auditsc.c	audit: print empty EXECVE args	2019-12-01 09:17:17 +01:00
backtracetest.c
bounds.c
capability.c	LSM: generalize flag passing to security_capable	2020-01-23 08:21:29 +01:00
compat.c	make 'user_access_begin()' do 'access_ok()'	2020-06-22 09:04:58 +02:00
configs.c
context_tracking.c
cpu.c	sched/core: Fix illegal RCU from offline CPUs	2020-06-22 09:05:14 +02:00
cpu_pm.c	kernel/cpu_pm: Fix uninitted local in cpu_pm	2020-06-22 09:05:28 +02:00
crash_core.c
crash_dump.c
cred.c	memcg: account security cred as well to kmemcg	2020-01-09 10:19:00 +01:00
delayacct.c
dma.c
elfcore.c	kernel/elfcore.c: include proper prototypes	2019-10-11 18:21:23 +02:00
exec_domain.c
exit.c	exit: Move preemption fixup up, move blocking operations down	2020-06-22 09:05:14 +02:00
extable.c
fail_function.c
fork.c	fork,memcg: alloc_thread_stack_node needs to set tsk->stack	2020-01-27 14:50:58 +01:00
freezer.c
futex.c	futex: Unbreak futex hashing	2020-03-25 08:06:14 +01:00
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c	kallsyms: Refactor kallsyms_show_value() to take cred	2020-07-16 08:17:26 +02:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c	kexec: Allocate decrypted control pages for kdump if SME is enabled	2019-11-24 08:20:29 +01:00
kexec_file.c
kexec_internal.h
kmod.c	kmod: make request_module() return an error when autoloading is disabled	2020-04-17 10:48:52 +02:00
kprobes.c	kprobes: fix kill kprobe which has been marked as gone	2020-09-26 18:01:28 +02:00
ksysfs.c
kthread.c	kthread: Do not preempt current task if it is going to call schedule()	2020-08-26 10:31:00 +02:00
latencytop.c
Makefile	y2038: futex: Move compat implementation into futex.c	2019-12-01 09:17:38 +01:00
memremap.c	mm/memory_hotplug: shrink zones when offlining memory	2020-01-29 16:43:27 +01:00
module-internal.h
module.c	module: Correctly truncate sysfs sections output	2020-08-21 11:05:34 +02:00
module_signing.c
notifier.c	x86/mm: split vmalloc_sync_all()	2020-03-25 08:06:13 +01:00
nsproxy.c
padata.c	padata: purge get_cpu and reorder_via_wq from padata_do_serial	2020-05-27 17:37:36 +02:00
panic.c	kernel/panic.c: do not append newline to the stack protector panic string	2019-12-01 09:17:10 +01:00
params.c
pid.c
pid_namespace.c	signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig	2019-07-26 09:14:01 +02:00
profile.c
ptrace.c	ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()	2020-01-23 08:21:29 +01:00
range.c
reboot.c
relay.c	kernel/relay.c: fix memleak on destroy relay channel	2020-08-26 10:30:59 +02:00
resource.c	resource: fix locking in find_next_iomem_res()	2019-09-16 08:22:20 +02:00
rseq.c
seccomp.c	LSM: generalize flag passing to security_capable	2020-01-23 08:21:29 +01:00
signal.c	signal: Extend exec_id to 64bits	2020-04-17 10:48:47 +02:00
smp.c
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c
sys.c	kernel/sys.c: avoid copying possible padding bytes in copy_to_user	2020-10-01 13:14:29 +02:00
sys_ni.c
sysctl.c	kernel: sysctl: make drop_caches write-only	2020-01-04 19:13:17 +01:00
sysctl_binary.c
task_work.c
taskstats.c	taskstats: fix data-race	2020-01-09 10:18:59 +01:00
test_kprobes.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	coredump: fix crash when umh is disabled	2020-05-14 07:57:21 +02:00
up.c
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c	watchdog/softlockup: Enforce that timestamp is valid on boot	2020-02-24 08:34:49 +01:00
watchdog_hld.c
workqueue.c	workqueue: don't use wq_select_unbound_cpu() for bound works	2020-03-18 07:14:20 +01:00
workqueue_internal.h