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b10bca0bc6
linux/arch/arm/kernel
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Will Deacon b10bca0bc6 ARM: 7595/1: syscall: rework ordering in syscall_trace_exit 
syscall_trace_exit is currently doing things back-to-front; invoking
the audit hook *after* signalling the debugger, which presents an
opportunity for the registers to be re-written by userspace in order to
bypass auditing constaints.

This patch fixes the ordering by moving the audit code first and the
tracehook code last. On the face of it, it looks like
current_thread_info()->syscall may be incorrect for the sys_exit
tracepoint, but that's actually not an issue because it will have been
set during syscall entry and cannot have changed since then.

Reported-by: Andrew Gabbasov <Andrew_Gabbasov@mentor.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11 00:18:26 +00:00
..
.gitignore
arch_timer.c ARM: 7538/1: delay: add registration mechanism for delay timer sources 2012-09-26 22:57:52 +01:00
armksyms.c Merge branches 'audit', 'delay', 'fixes', 'misc' and 'sta2x11' into for-linus 2012-07-27 23:06:32 +01:00
arthur.c
asm-offsets.c ARM: Don't unconditionally bloat thread_info 2012-08-29 11:18:17 +01:00
atags_compat.c ARM: 7505/1: split out ATAGS parsing 2012-09-03 22:55:56 +01:00
atags_parse.c ARM: 7505/1: split out ATAGS parsing 2012-09-03 22:55:56 +01:00
atags_proc.c ARM: 7505/1: split out ATAGS parsing 2012-09-03 22:55:56 +01:00
atags.h ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected 2012-09-03 22:56:15 +01:00
bios32.c ARM: soc: general cleanups 2012-10-01 18:19:05 -07:00
calls.S Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-10-10 12:02:25 +09:00
cpuidle.c cpuidle: Add common time keeping and irq enabling 2012-03-21 01:59:40 -04:00
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
debug.S ARM: move debug macros to common location 2012-09-14 09:22:00 -05:00
devtree.c arm: convert core files from module.h to export.h 2011-10-31 19:30:49 -04:00
dma-isa.c
dma.c locking, ARM: Annotate low level hw locks as raw 2011-09-13 11:12:14 +02:00
early_printk.c
elf.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
entry-armv.S ARM: Fix undefined instruction exception handling 2012-07-31 12:04:30 +01:00
entry-common.S ARM: 7595/1: syscall: rework ordering in syscall_trace_exit 2012-12-11 00:18:26 +00:00
entry-header.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
etm.c arm: fix implicit module.h users by adding it to arch/arm as required. 2011-10-31 19:30:50 -04:00
fiq.c ARM: fiq: change FIQ_START to a variable 2012-07-01 21:59:19 +08:00
fiqasm.S ARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2 2011-05-26 10:31:06 +01:00
ftrace.c ARM: 7468/1: ftrace: Trace function entry before updating index 2012-07-31 10:30:42 +01:00
head-common.S arm/dt: Make __vet_atags also accept a dtb image 2011-05-11 15:12:32 +02:00
head-nommu.S ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 2012-12-07 11:48:57 +00:00
head.S Merge branch 'fixes' into for-linus 2012-10-11 10:55:04 +01:00
hw_breakpoint.c ARM: 7497/1: hw_breakpoint: allow single-byte watchpoints on all addresses 2012-08-25 09:15:23 +01:00
hyp-stub.S ARM: virt: arch_timers: enable access to physical timers 2012-09-19 08:32:54 +01:00
insn.c ARM: fix missing bug.h include in arch/arm/kernel/insn.c 2012-03-30 11:51:46 +01:00
insn.h ARM: 7334/1: add jump label support 2012-03-24 09:38:56 +00:00
io.c arm: convert core files from module.h to export.h 2011-10-31 19:30:49 -04:00
irq.c ARM: at91: aic can use fast eoi handler type 2012-07-02 14:26:57 +02:00
isa.c
iwmmxt.S ARM: pxa: fix logic error in PJ4 iWMMXt handling 2011-08-11 10:10:26 +08:00
jump_label.c ARM: 7334/1: add jump label support 2012-03-24 09:38:56 +00:00
kgdb.c kgdb,arm: fix register dump 2010-10-29 13:14:40 -05:00
kprobes-arm.c ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below 2011-11-30 23:54:54 +00:00
kprobes-common.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
kprobes-test-arm.c ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6 2012-07-05 12:57:16 +01:00
kprobes-test-thumb.c ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels 2011-11-26 21:58:53 +00:00
kprobes-test.c ARM: 7209/1: Use generic ARM instruction set condition code checks for kprobes. 2011-12-13 08:52:03 +00:00
kprobes-test.h ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels 2011-11-26 21:58:53 +00:00
kprobes-thumb.c ARM: 7423/1: kprobes: run t32_simulate_ldr_literal() without insn slot 2012-06-14 15:11:44 +01:00
kprobes.c Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-04-02 08:53:24 -07:00
kprobes.h ARM: kprobes: Add exports for test code 2011-09-20 18:17:43 +00:00
machine_kexec.c ARM: 7540/1: kexec: Check segment memory addresses 2012-09-26 22:58:39 +01:00
Makefile Merge branch 'fixes' into for-linus 2012-10-11 10:55:04 +01:00
module.c ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* 2011-08-23 15:30:33 +01:00
opcodes.c ARM: 7206/1: Add generic ARM instruction set condition code checks. 2011-12-13 08:52:02 +00:00
patch.c ARM: 7332/1: extract out code patch function from kprobes 2012-03-24 09:38:55 +00:00
patch.h ARM: 7332/1: extract out code patch function from kprobes 2012-03-24 09:38:55 +00:00
perf_event_cpu.c ARM: perf: move irq registration into pmu implementation 2012-08-23 11:35:52 +01:00
perf_event_v6.c ARM: perf: prepare for moving CPU PMU code into separate file 2012-08-23 11:35:52 +01:00
perf_event_v7.c ARM: perf: prepare for moving CPU PMU code into separate file 2012-08-23 11:35:52 +01:00
perf_event_xscale.c ARM: perf: prepare for moving CPU PMU code into separate file 2012-08-23 11:35:52 +01:00
perf_event.c ARM: perf: move irq registration into pmu implementation 2012-08-23 11:35:52 +01:00
pj4-cp0.c arm: remove several unnecessary module.h include instances 2011-10-31 19:30:48 -04:00
process.c ARM: 7574/1: kernel/process.c: include idmap.h instead of redeclaring setup_mm_for_reboot() 2012-11-13 11:47:41 +00:00
ptrace.c ARM: 7595/1: syscall: rework ordering in syscall_trace_exit 2012-12-11 00:18:26 +00:00
relocate_kernel.S ARM: 7065/1: kexec: ensure new kernel is entered in ARM state 2011-08-28 10:39:41 +01:00
return_address.c arm: convert core files from module.h to export.h 2011-10-31 19:30:49 -04:00
sched_clock.c Merge branches 'atags', 'cache-l2x0', 'clkdev', 'fixes', 'integrator', 'misc', 'opcodes' and 'syscall' into for-linus 2012-10-04 23:01:55 +01:00
setup.c Merge branch 'fixes' into for-linus 2012-10-11 10:55:04 +01:00
signal.c Uninclude linux/freezer.h 2012-10-01 09:58:18 -04:00
signal.h ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline"" 2012-07-28 11:11:51 +01:00
sleep.S Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
smp_scu.c ARM: 7347/1: SCU: use cpu_logical_map for per-CPU low power mode 2012-04-28 17:31:37 +01:00
smp_tlb.c smp: introduce a generic on_each_cpu_mask() function 2012-03-28 17:14:35 -07:00
smp_twd.c ARM: 7563/1: SMP_TWD: make setup()/stop() reentrant 2012-11-04 10:31:02 +00:00
smp.c ARM: 7571/1: SMP: add function arch_send_wakeup_ipi_mask() 2012-11-13 11:47:40 +00:00
stacktrace.c arm: convert core files from module.h to export.h 2011-10-31 19:30:49 -04:00
suspend.c ARM: kernel: update cpu_suspend code to use cache LoUIS operations 2012-09-25 11:20:26 +01:00
swp_emulate.c ARM: 7208/1: Add condition code checking to SWP emulation handler. 2011-12-13 08:52:03 +00:00
sys_arm.c arm: get rid of execve wrapper, switch to generic execve() implementation 2012-09-30 22:21:37 -04:00
sys_oabi-compat.c userns: Convert stat to return values mapped from kuids and kgids 2012-05-15 14:08:35 -07:00
tcm.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
tcm.h
thumbee.c ARM: 7385/1: ThumbEE: Use cpuid macros to read ID_PFR0 for ThumbEE 2012-04-25 19:49:26 +01:00
time.c ARM: use new LEDS CPU trigger stub to replace old one 2012-08-01 11:22:14 +08:00
topology.c ARM: 7482/1: topology: fix section mismatch warning for init_cpu_topology 2012-08-11 09:15:56 +01:00
traps.c ARM: 7526/1: traps: send SIGILL if get_user fails on undef handling path 2012-09-07 20:40:44 +01:00
unwind.c ARM: unwinder: fix bisection to find origin in .idx section 2011-12-15 14:02:19 -08:00
vmlinux.lds.S ARM: 7568/1: Sort exception table at compile time 2012-11-04 10:31:16 +00:00
xscale-cp0.c arm: remove several unnecessary module.h include instances 2011-10-31 19:30:48 -04:00