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linux/kernel
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Douglas Anderson faa07c6be6 kgdb: Prevent infinite recursive entries to the debugger 
[ Upstream commit 3ca676e4ca ]

If we detect that we recursively entered the debugger we should hack
our I/O ops to NULL so that the panic() in the next line won't
actually cause another recursion into the debugger.  The first line of
kgdb_panic() will check this and return.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20200507130644.v4.6.I89de39f68736c9de610e6f241e68d8dbc44bc266@changeid
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-15 17:33:17 +09:00
..
bpf
bpf: Explicitly memset the bpf_attr structure
2023-05-15 17:12:39 +09:00
configs
ANDROID: add script to fetch android kernel config fragments
2017-10-03 17:19:26 +00:00
debug
kgdb: Prevent infinite recursive entries to the debugger
2023-05-15 17:33:17 +09:00
events
perf: Add cond_resched() to task_function_call()
2023-05-15 17:33:04 +09:00
gcov
kernel/gcov/fs.c: gcov_seq_next() should increase position index
2023-05-15 17:22:39 +09:00
irq
genirq/generic_pending: Do not lose pending affinity update
2023-05-15 17:30:43 +09:00
livepatch
livepatch/module: make TAINT_LIVEPATCH module-specific
2016-08-26 14:42:08 +02:00
locking
locktorture: Print ratio of acquisitions, not failures
2023-05-15 17:16:22 +09:00
power
PM: hibernate: Freeze kernel threads in software_resume()
2023-05-15 17:24:42 +09:00
printk
printk: fix integer overflow in setup_log_buf()
2023-05-15 15:17:10 +09:00
rcu
rcuperf: Fix cleanup path for invalid perf_type strings
2023-05-15 13:36:07 +09:00
sched
sched/fair: Don't NUMA balance for kthreads
2023-05-15 17:32:04 +09:00
time
ptp: fix the race between the release of ptp_clock and cdev
2023-05-15 17:27:24 +09:00
trace
blktrace: fix dereference after null check
2023-05-15 17:27:18 +09:00
.gitignore
…
acct.c
kernel/acct.c: fix the acct->needcheck check in check_free_space()
2018-01-10 09:29:51 +01:00
async.c
kernel/async.c: revert "async: simplify lowest_in_progress()"
2018-02-17 13:21:18 +01:00
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
audit_get_nd(): don't unlock parent too early
2023-05-15 16:08:52 +09:00
audit.c
audit: check the length of userspace generated audit records
2023-05-15 17:23:39 +09:00
audit.h
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-07-29 17:54:17 -07:00
auditfilter.c
audit: fix error handling in audit_data_to_entry()
2023-05-15 17:01:41 +09:00
auditsc.c
audit: print empty EXECVE args
2023-05-15 15:18:40 +09:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2023-05-15 09:22:43 +09:00
capability.c
ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
2017-01-06 10:40:13 +01:00
cfi.c
cfi: print target address on failure
2018-05-01 16:49:34 +00:00
cgroup_freezer.c
…
cgroup_pids.c
cgroup: pids: use atomic64_t for pids->limit
2023-05-15 16:16:25 +09:00
cgroup.c
cgroup: memcg: net: do not associate sock with unrelated cgroup
2023-05-15 17:09:20 +09:00
compat.c
19af5c5 dtv_demod: add AGC control for board t309 [1/1]
2019-05-06 21:14:10 +08:00
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
x86/speculation: Remove redundant arch_smt_update() invocation
2023-05-15 17:14:41 +09:00
cpuset.c
Merge 4.9.55 into android-4.9
2017-10-12 22:31:24 +02:00
crash_dump.c
…
cred.c
memcg: account security cred as well to kmemcg
2023-05-15 16:30:24 +09:00
delayacct.c
…
dma.c
…
elfcore.c
kernel/elfcore.c: include proper prototypes
2023-05-15 14:48:01 +09:00
exec_domain.c
…
exit.c
kernel/exit.c: release ptraced tasks before zap_pid_ns_processes
2023-05-15 11:16:37 +09:00
extable.c
kernel/extable.c: mark core_kernel_text notrace
2017-07-21 07:42:21 +02:00
fork.c
kernel/sysctl.c: do not override max_threads provided by userspace
2023-05-15 14:49:35 +09:00
freezer.c
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex_compat.c
…
futex.c
futex: Unbreak futex hashing
2023-05-15 17:11:11 +09:00
groups.c
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
hung_task.c
kernel: hung_task.c: disable on suspend
2023-05-15 12:23:14 +09:00
irq_work.c
…
jump_label.c
jump_label: Invoke jump_label_test() via early_initcall()
2017-12-14 09:28:24 +01:00
kallsyms.c
rodata: optimize memory usage of rodata section [4/5]
2023-04-21 13:52:34 +09:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: ensure irq code sees a valid area
2023-05-12 16:39:07 +09:00
kexec_core.c
objtool, x86: Add several functions and files to the objtool whitelist
2018-06-05 10:28:57 +02:00
kexec_file.c
kexec: fix double-free when failing to relocate the purgatory
2016-09-01 17:52:01 -07:00
kexec_internal.h
…
kexec.c
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2023-05-15 17:14:56 +09:00
kprobes.c
kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
2023-05-15 15:08:53 +09:00
ksysfs.c
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
kthread.c
kthread, tracing: Don't expose half-written comm when creating kthreads
2023-05-12 16:38:55 +09:00
latencytop.c
…
Makefile
x86/uaccess, kcov: Disable stack protector
2023-05-15 13:48:54 +09:00
membarrier.c
Fix: Disable sys_membarrier when nohz_full is enabled
2017-03-12 06:41:45 +01:00
memremap.c
mm, devm_memremap_pages: kill mapping "System RAM" support
2023-05-15 10:54:41 +09:00
module_signing.c
…
module-internal.h
…
module.c
kernel/module.c: wakeup processes in module_wq on module unload
2023-05-15 16:17:28 +09:00
notifier.c
x86/mm: split vmalloc_sync_all()
2023-05-15 17:11:06 +09:00
nsproxy.c
…
padata.c
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2023-05-15 17:28:50 +09:00
panic.c
panic: ensure preemption is disabled during panic()
2023-05-15 14:48:19 +09:00
params.c
…
pid_namespace.c
signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
2023-05-15 13:59:49 +09:00
pid.c
pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()
2018-04-13 19:47:53 +02:00
profile.c
profile: Convert to hotplug state machine
2016-07-15 10:41:42 +02:00
ptrace.c
ptrace: Fix ->ptracer_cred handling for PTRACE_TRACEME
2023-05-15 13:57:11 +09:00
range.c
…
reboot.c
…
relay.c
kernel/relay.c: handle alloc_percpu returning NULL in relay_open
2023-05-15 17:31:10 +09:00
resource.c
resource: fix integer overflow at reallocation
2018-04-24 09:34:09 +02:00
seccomp.c
seccomp: Move speculation migitation control to arch code
2018-05-22 16:58:02 +02:00
signal.c
signal: Extend exec_id to 64bits
2023-05-15 17:14:27 +09:00
smp.c
cpu/hotplug: Fix SMT supported evaluation
2023-05-12 16:55:46 +09:00
smpboot.c
kthread/smpboot: do not park in kthread_create_on_cpu()
2016-10-11 15:06:33 -07:00
smpboot.h
…
softirq.c
Mark HI and TASKLET softirq synchronous
2023-05-12 16:46:40 +09:00
stacktrace.c
stacktrace, lockdep: Fix address, newline ugliness
2017-02-14 15:25:42 -08:00
stop_machine.c
stop_machine: Use raw spinlocks
2023-05-12 16:43:35 +09:00
sys_ni.c
x86/pkeys: Fix pkeys build breakage for some non-x86 arches
2016-09-13 14:41:36 +02:00
sys.c
kernel/sys.c: prctl: fix false positive in validate_prctl_map()
2023-05-15 13:47:18 +09:00
sysctl_binary.c
…
sysctl.c
kernel: sysctl: make drop_caches write-only
2023-05-15 16:21:29 +09:00
task_work.c
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats.c
taskstats: fix data-race
2023-05-15 16:30:15 +09:00
test_kprobes.c
…
torture.c
torture: Convert torture_shutdown() to hrtimer
2016-08-22 10:01:49 -07:00
tracepoint.c
tracepoint: Do not warn on ENOMEM
2018-05-09 09:50:20 +02:00
tsacct.c
…
ucount.c
kernel/ucount.c: mark user_header with kmemleak_ignore()
2017-06-17 06:41:51 +02:00
uid16.c
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
up.c
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
user_namespace.c
userns: move user access out of the mutex
2023-05-12 17:24:22 +09:00
user-return-notifier.c
…
user.c
ANDROID: proc: Add /proc/uid directory
2018-04-03 11:15:30 -07:00
utsname_sysctl.c
sys: don't hold uts_sem while accessing userspace memory
2023-05-12 17:24:20 +09:00
utsname.c
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
watchdog_hld.c
debug: hard lockup detect
2018-05-09 19:39:28 -07:00
watchdog.c
debug: hard lockup detect
2018-05-09 19:39:28 -07:00
workqueue_internal.h
workqueue: Fix NULL pointer dereference
2017-11-15 15:53:17 +01:00
workqueue.c
workqueue: don't use wq_select_unbound_cpu() for bound works
2023-05-15 17:09:24 +09:00