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6ee98ffeea
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Thomas Gleixner 6ee98ffeea x86/ftrace: Make sure that ftrace trampolines are not RWX 
ftrace use module_alloc() to allocate trampoline pages. The mapping of
module_alloc() is RWX, which makes sense as the memory is written to right
after allocation. But nothing makes these pages RO after writing to them.

Add proper set_memory_rw/ro() calls to protect the trampolines after
modification.

Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1705251056410.1862@nanos

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-05-26 22:37:02 -04:00
..
boot x86/mm: Add support for gbpages to kernel_ident_mapping_init() 2017-05-08 08:28:40 +02:00
configs Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-01 20:51:12 -07:00
crypto crypto: glue_helper - remove the le128_gf128mul_x_ble function 2017-04-05 21:58:37 +08:00
entry perf/core improvements and fixes: 2017-05-03 19:28:27 +02:00
events perf/core improvements and fixes: 2017-05-03 19:28:27 +02:00
hyperv char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
ia32 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
include x86: fix 32-bit case of __get_user_asm_u64() 2017-05-21 18:26:54 -07:00
kernel x86/ftrace: Make sure that ftrace trampolines are not RWX 2017-05-26 22:37:02 -04:00
kvm KVM: x86: prevent uninitialized variable warning in check_svme() 2017-05-19 19:59:28 +02:00
lguest Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-01 20:51:12 -07:00
lib x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility 2017-05-05 08:31:05 +02:00
math-emu
mm x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range() 2017-05-26 22:37:01 -04:00
net x86: use set_memory.h header 2017-05-08 17:15:13 -07:00
oprofile
pci pci-v4.12-changes 2017-05-08 19:03:25 -07:00
platform x86: use set_memory.h header 2017-05-08 17:15:13 -07:00
power x86/mm: Add support for gbpages to kernel_ident_mapping_init() 2017-05-08 08:28:40 +02:00
purgatory kasan: do not sanitize kexec purgatory 2017-03-31 17:13:30 -07:00
ras RAS: Add a Corrected Errors Collector 2017-03-28 08:54:48 +02:00
realmode x86: use set_memory.h header 2017-05-08 17:15:13 -07:00
tools
um Merge branch 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2017-05-13 10:20:02 -07:00
video
xen xen: make xen_flush_tlb_all() static 2017-05-19 08:04:25 +02:00
.gitignore
Kbuild Drivers: hv vmbus: Move Hypercall page setup out of common code 2017-01-19 11:42:07 +01:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching 2017-05-02 18:24:16 -07:00
Kconfig.cpu
Kconfig.debug usb/early: Add driver for xhci debug capability 2017-03-21 12:30:05 +01:00
Makefile x86/build: Don't add -maccumulate-outgoing-args w/o compiler support 2017-05-09 08:16:45 +02:00
Makefile_32.cpu x86/build: Mostly disable '-maccumulate-outgoing-args' 2017-03-30 11:53:04 +02:00
Makefile.um