kernel_optimize_test/kernel
Thomas Gleixner d88d59b64c core/entry: Respect syscall number rewrites
The transcript of the x86 entry code to the generic version failed to
reload the syscall number from ptregs after ptrace and seccomp have run,
which both can modify the syscall number in ptregs. It returns the original
syscall number instead which is obviously not the right thing to do.

Reload the syscall number to fix that.

Fixes: 142781e108 ("entry: Provide generic syscall entry functionality")
Reported-by: Kyle Huey <me@kylehuey.com> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Kyle Huey <me@kylehuey.com> 
Tested-by: Kees Cook <keescook@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/87blj6ifo8.fsf@nanos.tec.linutronix.de
2020-08-21 16:17:29 +02:00
..
bpf bpf: Delete repeated words in comments 2020-08-07 18:57:24 +02:00
cgroup for-5.9/block-20200802 2020-08-03 11:57:03 -07:00
configs
debug Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
dma Cleanup, SECCOMP_FILTER support, message printing fixes, and other 2020-08-15 18:50:32 -07:00
entry core/entry: Respect syscall number rewrites 2020-08-21 16:17:29 +02:00
events Misc fixes, an expansion of perf syscall access to CAP_PERFMON privileged tools, 2020-08-15 10:34:24 -07:00
gcov
irq genirq: Unlock irq descriptor after errors 2020-08-13 09:35:59 +02:00
kcsan Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core 2020-08-01 09:26:27 +02:00
livepatch
locking A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
power libnvdimm for 5.9 2020-08-11 10:59:19 -07:00
printk Printk changes for 5.9 2020-08-04 22:22:25 -07:00
rcu rcu: kasan: record and print call_rcu() call stack 2020-08-07 11:33:28 -07:00
sched Two fixes: fix a new tracepoint's output value, and fix the formatting of show-state syslog printouts. 2020-08-15 10:36:40 -07:00
time A set oftimekeeping/VDSO updates: 2020-08-14 14:26:08 -07:00
trace Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-13 20:03:11 -07:00
.gitignore
acct.c
async.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
audit_fsnotify.c fsnotify: create method handle_inode_event() in fsnotify_operations 2020-07-27 23:25:50 +02:00
audit_tree.c \n 2020-08-06 19:29:51 -07:00
audit_watch.c fsnotify: create method handle_inode_event() in fsnotify_operations 2020-07-27 23:25:50 +02:00
audit.c audit/stable-5.9 PR 20200803 2020-08-04 14:20:26 -07:00
audit.h revert: 1320a4052e ("audit: trigger accompanying records when no rules present") 2020-07-29 10:00:36 -04:00
auditfilter.c
auditsc.c audit/stable-5.9 PR 20200803 2020-08-04 14:20:26 -07:00
backtracetest.c treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() 2020-07-30 11:15:58 -07:00
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c
crash_core.c kdump: append kernel build-id string to VMCOREINFO 2020-08-12 10:58:01 -07:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c kernel: add a kernel_wait helper 2020-08-12 10:57:59 -07:00
extable.c
fail_function.c
fork.c A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
freezer.c
futex.c futex: Convert to use the preferred 'fallthrough' macro 2020-08-13 21:02:12 +02:00
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c Linux 5.8-rc7 2020-07-28 13:18:01 +02:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c kcov: make some symbols static 2020-08-12 10:58:02 -07:00
kexec_core.c
kexec_elf.c
kexec_file.c Misc fixes and small updates all around the place: 2020-08-15 10:38:03 -07:00
kexec_internal.h
kexec.c
kheaders.c
kmod.c kmod: remove redundant "be an" in the comment 2020-08-12 10:58:01 -07:00
kprobes.c Tracing updates for 5.9 2020-08-07 18:29:15 -07:00
ksysfs.c
kthread.c uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
latencytop.c
Makefile all arch: remove system call sys_sysctl 2020-08-14 19:56:56 -07:00
module_signature.c
module_signing.c
module-internal.h
module.c Modules updates for v5.9 2020-08-14 11:07:02 -07:00
notifier.c
nsproxy.c nsproxy: support CLONE_NEWTIME with setns() 2020-07-08 11:14:22 +02:00
padata.c padata: remove padata_parallel_queue 2020-07-23 17:34:18 +10:00
panic.c panic: make print_oops_end_marker() static 2020-08-12 10:58:02 -07:00
params.c
pid_namespace.c pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid 2020-07-19 20:14:42 +02:00
pid.c cap-checkpoint-restore-v5.9 2020-08-04 15:02:07 -07:00
profile.c
ptrace.c
range.c
reboot.c arch: remove unicore32 port 2020-07-01 12:09:13 +03:00
regset.c regset: kill ->get() 2020-07-27 14:31:12 -04:00
relay.c
resource.c
rseq.c
scs.c mm: memcontrol: account kernel stack per node 2020-08-07 11:33:25 -07:00
seccomp.c seccomp: Introduce addfd ioctl to seccomp user notifier 2020-07-14 16:29:42 -07:00
signal.c task_work: only grab task signal lock when needed 2020-08-13 09:01:38 -06:00
smp.c smp: Fix a potential usage of stale nr_cpus 2020-07-22 10:22:04 +02:00
smpboot.c
smpboot.h
softirq.c tasklets API update for v5.9-rc1 2020-08-04 13:40:35 -07:00
stackleak.c
stacktrace.c uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
stop_machine.c
sys_ni.c all arch: remove system call sys_sysctl 2020-08-14 19:56:56 -07:00
sys.c prctl: exe link permission error changed from -EINVAL to -EPERM 2020-07-19 20:14:42 +02:00
sysctl-test.c
sysctl.c mm: use unsigned types for fragmentation score 2020-08-12 10:57:56 -07:00
task_work.c task_work: only grab task signal lock when needed 2020-08-13 09:01:38 -06:00
taskstats.c
test_kprobes.c
torture.c torture: Dump ftrace at shutdown only if requested 2020-06-29 12:01:45 -07:00
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c kernel: add a kernel_wait helper 2020-08-12 10:57:59 -07:00
up.c
user_namespace.c
user-return-notifier.c
user.c
usermode_driver.c umd: Stop using split_argv 2020-07-07 11:58:59 -05:00
utsname_sysctl.c
utsname.c
watch_queue.c
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c