Yang Yingliang 2eef1399a8 modules: fix BUG when load module with rodata=n ... When loading a module with rodata=n, it causes an executing NX-protected page BUG. [ 32.379191] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) [ 32.382917] BUG: unable to handle page fault for address: ffffffffc0005000 [ 32.385947] #PF: supervisor instruction fetch in kernel mode [ 32.387662] #PF: error_code(0x0011) - permissions violation [ 32.389352] PGD 240c067 P4D 240c067 PUD 240e067 PMD 421a52067 PTE 8000000421a53063 [ 32.391396] Oops: 0011 [#1] SMP PTI [ 32.392478] CPU: 7 PID: 2697 Comm: insmod Tainted: G O 5.2.0-rc5+ #202 [ 32.394588] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [ 32.398157] RIP: 0010:ko_test_init+0x0/0x1000 [ko_test] [ 32.399662] Code: Bad RIP value. [ 32.400621] RSP: 0018:ffffc900029f3ca8 EFLAGS: 00010246 [ 32.402171] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 32.404332] RDX: 00000000000004c7 RSI: 0000000000000cc0 RDI: ffffffffc0005000 [ 32.406347] RBP: ffffffffc0005000 R08: ffff88842fbebc40 R09: ffffffff810ede4a [ 32.408392] R10: ffffea00108e3480 R11: 0000000000000000 R12: ffff88842bee21a0 [ 32.410472] R13: 0000000000000001 R14: 0000000000000001 R15: ffffc900029f3e78 [ 32.412609] FS: 00007fb4f0c0a700(0000) GS:ffff88842fbc0000(0000) knlGS:0000000000000000 [ 32.414722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.416290] CR2: ffffffffc0004fd6 CR3: 0000000421a90004 CR4: 0000000000020ee0 [ 32.418471] Call Trace: [ 32.419136] do_one_initcall+0x41/0x1df [ 32.420199] ? _cond_resched+0x10/0x40 [ 32.421433] ? kmem_cache_alloc_trace+0x36/0x160 [ 32.422827] do_init_module+0x56/0x1f7 [ 32.423946] load_module+0x1e67/0x2580 [ 32.424947] ? __alloc_pages_nodemask+0x150/0x2c0 [ 32.426413] ? map_vm_area+0x2d/0x40 [ 32.427530] ? __vmalloc_node_range+0x1ef/0x260 [ 32.428850] ? __do_sys_init_module+0x135/0x170 [ 32.430060] ? _cond_resched+0x10/0x40 [ 32.431249] __do_sys_init_module+0x135/0x170 [ 32.432547] do_syscall_64+0x43/0x120 [ 32.433853] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Because if rodata=n, set_memory_x() can't be called, fix this by calling set_memory_x in complete_formation(); Fixes: f2c65fb322 ("x86/modules: Avoid breaking W^X while loading modules") Suggested-by: Jian Cheng <cj.chengjian@huawei.com> Reviewed-by: Nadav Amit <namit@vmware.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>		2019-06-24 12:11:41 +02:00
..
bpf	SPDX update for 5.2-rc2, round 1	2019-05-21 12:33:38 -07:00
cgroup	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
configs
debug	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
dma	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
events	mm/mmu_notifier: use correct mmu_notifier events for each invalidation	2019-05-14 09:47:49 -07:00
gcov	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
irq	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
livepatch	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
locking	locking/lock_events: Use this_cpu_add() when necessary	2019-05-24 14:17:18 -07:00
power	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
printk	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
rcu	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
sched	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
time	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
trace	Make the GCC 9 warning for sub struct memset go away.	2019-05-26 13:49:40 -07:00
.gitignore	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
acct.c	acct_on(): don't mess with freeze protection	2019-04-04 21:04:13 -04:00
async.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
audit_fsnotify.c	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
audit_tree.c	fsnotify: switch send_to_group() and ->handle_event to const struct qstr *	2019-04-26 13:51:03 -04:00
audit_watch.c	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
audit.c	audit: connect LOGIN record to its syscall record	2019-03-20 20:57:48 -04:00
audit.h	audit_compare_dname_path(): switch to const struct qstr *	2019-04-28 20:33:43 -04:00
auditfilter.c	Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-05-07 20:03:32 -07:00
auditsc.c	Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-05-07 20:03:32 -07:00
backtracetest.c	backtrace-test: Simplify stack trace handling	2019-04-29 12:37:47 +02:00
bounds.c
capability.c	LSM: add SafeSetID module that gates setid calls	2019-01-25 11:22:43 -08:00
compat.c	kernel/compat.c: mark expected switch fall-throughs	2019-05-15 08:16:14 -07:00
configs.c	kernel/configs: use .incbin directive to embed config_data.gz	2019-03-07 18:32:02 -08:00
context_tracking.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
cpu_pm.c
cpu.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-05-06 14:50:46 -07:00
crash_core.c	kexec: export PG_offline to VMCOREINFO	2019-03-05 21:07:14 -08:00
crash_dump.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
cred.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
delayacct.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25	2019-05-21 11:52:39 +02:00
dma.c
elfcore.c
exec_domain.c
exit.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
extable.c
fail_function.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
fork.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
freezer.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
futex.c	mm/gup: change GUP fast to use flags rather than a write 'bool'	2019-05-14 09:47:46 -07:00
gen_ikh_data.sh	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
groups.c
hung_task.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
iomem.c	mm/resource: Use resource_overlaps() to simplify region_intersects()	2019-04-19 12:59:36 +02:00
irq_work.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
jump_label.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
kallsyms.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
kcmp.c
Kconfig.freezer	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.hz	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.locks	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.preempt	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
kcov.c	kcov: convert kcov.refcount to refcount_t	2019-03-07 18:32:02 -08:00
kexec_core.c	power/suspend: Add function to disable secondaries for suspend	2019-05-03 19:42:41 +02:00
kexec_file.c	mm: memblock: make keeping memblock memory opt-in rather than opt-out	2019-05-14 09:47:50 -07:00
kexec_internal.h
kexec.c
kheaders.c	Provide in-kernel headers to make extending kernel easier	2019-04-29 16:48:03 +02:00
kmod.c
kprobes.c	kprobes: Fix error check when reusing optimized probes	2019-04-16 09:38:16 +02:00
ksysfs.c
kthread.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
latencytop.c	kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing	2019-05-14 19:52:49 -07:00
Makefile	kernel/Makefile: don't assume that kernel/gen_ikh_data.sh is executable	2019-05-14 19:52:47 -07:00
memremap.c	kernel/memremap.c: remove the unused device_private_entry_fault() export	2019-05-14 09:47:51 -07:00
module_signing.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
module-internal.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
module.c	modules: fix BUG when load module with rodata=n	2019-06-24 12:11:41 +02:00
notifier.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
nsproxy.c
padata.c	padata: Replace padata_attr_type default_attrs field with groups	2019-04-25 22:06:11 +02:00
panic.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
params.c
pid_namespace.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
pid.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
profile.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
ptrace.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
range.c
reboot.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
relay.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-03-12 13:27:20 -07:00
resource.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
rseq.c	rseq: Remove superfluous rseq_len from task_struct	2019-04-19 12:39:32 +02:00
seccomp.c	audit/stable-5.2 PR 20190507	2019-05-07 19:06:04 -07:00
signal.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
smp.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
smpboot.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
smpboot.h
softirq.c	softirq: Remove tasklet_hrtimer	2019-03-22 14:36:02 +01:00
stackleak.c
stacktrace.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
stop_machine.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 38	2019-05-24 17:27:11 +02:00
sys_ni.c	signal: support CLONE_PIDFD with pidfd_send_signal	2019-05-07 14:31:03 +02:00
sys.c	kernel/sys.c: prctl: fix false positive in validate_prctl_map()	2019-05-14 09:47:44 -07:00
sysctl_binary.c	kernel/sysctl: add panic_print into sysctl	2019-01-04 13:13:47 -08:00
sysctl.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
task_work.c
taskstats.c	genetlink: optionally validate strictly/dumps	2019-04-27 17:07:22 -04:00
test_kprobes.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25	2019-05-21 11:52:39 +02:00
torture.c	torture: Don't try to offline the last CPU	2019-03-26 14:42:53 -07:00
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
up.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
user_namespace.c
user-return-notifier.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
user.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
utsname_sysctl.c
utsname.c
watchdog_hld.c	kernel/watchdog_hld.c: hard lockup message should end with a newline	2019-04-19 09:46:05 -07:00
watchdog.c	watchdog: Fix typo in comment	2019-04-18 14:05:51 +02:00
workqueue_internal.h	sched/core, workqueues: Distangle worker accounting from rq lock	2019-04-16 16:55:15 +02:00
workqueue.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00