Jessica Yu 5bcbbadf6a module: exclude SHN_UNDEF symbols from kallsyms api ... [ Upstream commit 9f2d1e68cf ] Livepatch modules are special in that we preserve their entire symbol tables in order to be able to apply relocations after module load. The unwanted side effect of this is that undefined (SHN_UNDEF) symbols of livepatch modules are accessible via the kallsyms api and this can confuse symbol resolution in livepatch (klp_find_object_symbol()) and cause subtle bugs in livepatch. Have the module kallsyms api skip over SHN_UNDEF symbols. These symbols are usually not available for normal modules anyway as we cut down their symbol tables to just the core (non-undefined) symbols, so this should really just affect livepatch modules. Note that this patch doesn't affect the display of undefined symbols in /proc/kallsyms. Reported-by: Josh Poimboeuf <jpoimboe@redhat.com> Tested-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-10-03 17:00:53 -07:00
..
bpf	bpf: hash map: decrement counter on error	2018-08-24 13:09:12 +02:00
cgroup	cgroup: fix rule checking for threaded mode switching	2018-03-28 18:24:37 +02:00
configs
debug	kdb: make "mdr" command repeat	2018-05-30 07:52:41 +02:00
events	perf/core: Force USER_DS when recording user stack data	2018-09-26 08:38:08 +02:00
gcov	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
irq	genirq: Make force irq threading setup more robust	2018-08-09 12:16:38 +02:00
livepatch	livepatch: Validate module/old func name length	2018-09-09 19:55:58 +02:00
locking	locking/rtmutex: Allow specifying a subclass for nested locking	2018-09-05 09:26:29 +02:00
power	PM / sleep: wakeup: Fix build error caused by missing SRCU support	2018-09-09 19:55:58 +02:00
printk	printk/tracing: Do not trace printk_nmi_enter()	2018-09-09 19:55:57 +02:00
rcu	rcu: Call touch_nmi_watchdog() while printing stall warnings	2018-05-30 07:52:39 +02:00
sched	sched/fair: Fix vruntime_normalized() for remote non-migration wakeup	2018-09-29 03:06:07 -07:00
time	posix-timers: Sanitize overrun handling	2018-10-03 17:00:50 -07:00
trace	ring-buffer: Allow for rescheduling when removing pages	2018-09-29 03:06:04 -07:00
.gitignore
acct.c	kernel/acct.c: fix the acct->needcheck check in check_free_space()	2018-01-10 09:31:17 +01:00
async.c	kernel/async.c: revert "async: simplify lowest_in_progress()"	2018-02-16 20:23:05 +01:00
audit.c	audit: return on memory error to avoid null pointer dereference	2018-05-30 07:52:39 +02:00
audit.h
audit_fsnotify.c
audit_tree.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
audit_watch.c	audit: fix use-after-free in audit_add_watch	2018-09-26 08:38:09 +02:00
auditfilter.c	audit: allow not equal op for audit by executable	2018-08-03 07:50:39 +02:00
auditsc.c	audit: fix potential null dereference 'context->module.name'	2018-08-06 16:20:49 +02:00
backtracetest.c
bounds.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
capability.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat.c	compat: fix 4-byte infoleak via uninitialized struct field	2018-05-16 10:10:26 +02:00
configs.c
context_tracking.c
cpu.c	cpu/hotplug: Prevent state corruption on error rollback	2018-09-19 22:43:36 +02:00
cpu_pm.c
crash_core.c	kdump: write correct address of mem_section into vmcoreinfo	2018-01-17 09:45:27 +01:00
crash_dump.c
cred.c
delayacct.c	delayacct: Use raw_spinlocks	2018-08-03 07:50:38 +02:00
dma.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
elfcore.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exec_domain.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exit.c	kernel/exit.c: export abort() to modules	2018-02-13 10:19:49 +01:00
extable.c
fork.c	fork: don't copy inconsistent signal handler state to child	2018-09-15 09:45:27 +02:00
freezer.c
futex.c	futex: Fix OWNER_DEAD fixup	2018-02-03 17:38:47 +01:00
futex_compat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
groups.c	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-20 10:10:18 +01:00
hung_task.c	kernel/hung_task.c: show all hung tasks before panic	2018-08-03 07:50:23 +02:00
irq_work.c
jump_label.c	jump_label: Invoke jump_label_test() via early_initcall()	2017-12-14 09:53:13 +01:00
kallsyms.c
kcmp.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: ensure irq code sees a valid area	2018-08-03 07:50:22 +02:00
kexec.c
kexec_core.c
kexec_file.c
kexec_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
kmod.c
kprobes.c	kprobes: Make list and blacklist root user read only	2018-09-05 09:26:41 +02:00
ksysfs.c
kthread.c	kthread, tracing: Don't expose half-written comm when creating kthreads	2018-08-03 07:50:21 +02:00
latencytop.c
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
memremap.c	mm: Fix devm_memremap_pages() collision handling	2018-09-15 09:45:35 +02:00
module-internal.h
module.c	module: exclude SHN_UNDEF symbols from kallsyms api	2018-10-03 17:00:53 -07:00
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c
profile.c
ptrace.c
range.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
reboot.c
relay.c	kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE	2018-05-30 07:52:00 +02:00
resource.c	resource: fix integer overflow at reallocation	2018-04-24 09:36:22 +02:00
seccomp.c	seccomp: Move speculation migitation control to arch code	2018-05-22 18:54:04 +02:00
signal.c	sched/core: Introduce set_special_state()	2018-06-21 04:02:54 +09:00
smp.c	cpu/hotplug: Fix SMT supported evaluation	2018-08-15 18:13:00 +02:00
smpboot.c
smpboot.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
softirq.c	Mark HI and TASKLET softirq synchronous	2018-08-15 18:12:47 +02:00
stacktrace.c
stop_machine.c	stop_machine: Atomically queue and wake stopper threads	2018-09-05 09:26:36 +02:00
sys.c	sys: don't hold uts_sem while accessing userspace memory	2018-09-09 19:56:00 +02:00
sys_ni.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sysctl.c	kmemcheck: rip it out	2018-02-22 15:42:24 +01:00
sysctl_binary.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
task_work.c	locking/barriers: Convert users of lockless_dereference() to READ_ONCE()	2017-12-25 14:26:21 +01:00
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Do not warn on ENOMEM	2018-05-09 09:51:50 +02:00
tsacct.c
ucount.c
uid16.c	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-20 10:10:18 +01:00
umh.c
up.c
user-return-notifier.c
user.c
user_namespace.c	userns: move user access out of the mutex	2018-09-09 19:56:00 +02:00
utsname.c
utsname_sysctl.c	sys: don't hold uts_sem while accessing userspace memory	2018-09-09 19:56:00 +02:00
watchdog.c	watchdog: Mark watchdog touch functions as notrace	2018-09-05 09:26:42 +02:00
watchdog_hld.c	watchdog: Mark watchdog touch functions as notrace	2018-09-05 09:26:42 +02:00
workqueue.c	watchdog: Mark watchdog touch functions as notrace	2018-09-05 09:26:42 +02:00
workqueue_internal.h	Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-11-06 12:26:49 -08:00