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Peter Zijlstra 4f9087f166 x86/cfi,bpf: Fix BPF JIT call 
The current BPF call convention is __nocfi, except when it calls !JIT things,
then it calls regular C functions.

It so happens that with FineIBT the __nocfi and C calling conventions are
incompatible. Specifically __nocfi will call at func+0, while FineIBT will have
endbr-poison there, which is not a valid indirect target. Causing #CP.

Notably this only triggers on IBT enabled hardware, which is probably why this
hasn't been reported (also, most people will have JIT on anyway).

Implement proper CFI prologues for the BPF JIT codegen and drop __nocfi for
x86.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20231215092707.345270396@infradead.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-12-15 16:25:55 -08:00
..
bpf
x86/cfi,bpf: Fix BPF JIT call
2023-12-15 16:25:55 -08:00
cgroup
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-11-23 12:20:58 -08:00
configs
hardening: Provide Kconfig fragments for basic options
2023-09-22 09:50:55 -07:00
debug
kdb: Corrects comment for kdballocenv
2023-11-06 17:13:55 +00:00
dma
swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
2023-11-08 16:27:05 +01:00
entry
entry: Remove empty addr_limit_user_check()
2023-08-23 10:32:39 +02:00
events
perf/core: Fix cpuctx refcounting
2023-11-15 04:18:31 +01:00
futex
futex: Fix hardcoded flags
2023-11-15 04:02:25 +01:00
gcov
gcov: annotate struct gcov_iterator with __counted_by
2023-10-18 14:43:22 -07:00
irq
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
kcsan
mm: delete checks for xor_unlock_is_negative_byte()
2023-10-18 14:34:17 -07:00
livepatch
livepatch: Fix missing newline character in klp_resolve_symbols()
2023-09-20 11:24:18 +02:00
locking
lockdep: Fix block chain corruption
2023-11-24 11:04:54 +01:00
module
This update includes the following changes:
2023-11-02 16:15:30 -10:00
power
Power management updates for 6.7-rc1
2023-10-31 15:38:12 -10:00
printk
TTY/Serial changes for 6.7-rc1
2023-11-03 15:44:25 -10:00
rcu
RCU fixes for v6.7
2023-11-08 09:47:52 -08:00
sched
sched/fair: Fix the decision for load balance
2023-11-14 22:27:01 +01:00
time
- Do the push of pending hrtimers away from a CPU which is being
2023-11-19 13:35:07 -08:00
trace
bpf: Limit the number of kprobes when attaching program to multiple kprobes
2023-12-15 22:54:55 +01:00
.gitignore
…
acct.c
fs: rename __mnt_{want,drop}_write*() helpers
2023-09-11 15:05:50 +02:00
async.c
…
audit_fsnotify.c
…
audit_tree.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
audit_watch.c
audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()
2023-11-14 17:34:27 -05:00
audit.c
audit: move trailing statements to next line
2023-08-15 18:16:14 -04:00
audit.h
audit: correct audit_filter_inodes() definition
2023-07-21 12:17:25 -04:00
auditfilter.c
audit: move trailing statements to next line
2023-08-15 18:16:14 -04:00
auditsc.c
audit,io_uring: io_uring openat triggers audit reference count underflow
2023-10-13 18:34:46 +02:00
backtracetest.c
…
bounds.c
…
capability.c
lsm: constify the 'target' parameter in security_capget()
2023-08-08 16:48:47 -04:00
cfi.c
…
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-03-14 19:32:38 -07:00
configs.c
…
context_tracking.c
locking/atomic: treewide: use raw_atomic*_<op>()
2023-06-05 09:57:20 +02:00
cpu_pm.c
cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()
2023-01-13 11:48:15 +01:00
cpu.c
- Do the push of pending hrtimers away from a CPU which is being
2023-11-19 13:35:07 -08:00
crash_core.c
crash_core.c: remove unneeded functions
2023-10-04 10:41:58 -07:00
crash_dump.c
…
cred.c
lsm/stable-6.7 PR 20231030
2023-10-30 20:13:17 -10:00
delayacct.c
delayacct: track delays from IRQ/SOFTIRQ
2023-04-18 16:39:34 -07:00
dma.c
…
exec_domain.c
…
exit.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
exit.h
exit: add internal include file with helpers
2023-09-21 12:03:50 -06:00
extable.c
…
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-02-08 13:36:22 +01:00
fork.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
freezer.c
freezer,sched: Use saved_state to reduce some spurious wakeups
2023-09-18 08:14:36 +02:00
gen_kheaders.sh
Revert "kheaders: substituting --sort in archive creation"
2023-05-28 16:20:21 +09:00
groups.c
groups: Convert group_info.usage to refcount_t
2023-09-29 11:28:39 -07:00
hung_task.c
kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static
2023-04-08 13:45:37 -07:00
iomem.c
kernel/iomem.c: remove __weak ioremap_cache helper
2023-08-21 13:37:28 -07:00
irq_work.c
trace: Add trace_ipi_send_cpu()
2023-03-24 11:01:29 +01:00
jump_label.c
jump_label: Prevent key->enabled int overflow
2022-12-01 15:53:05 -08:00
kallsyms_internal.h
kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]
2022-11-12 18:47:36 -08:00
kallsyms_selftest.c
Modules changes for v6.6-rc1
2023-08-29 17:32:32 -07:00
kallsyms_selftest.h
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kallsyms.c
kallsyms: Change func signature for cleanup_symbol_name()
2023-08-25 15:00:36 -07:00
kcmp.c
file: convert to SLAB_TYPESAFE_BY_RCU
2023-10-19 11:02:48 +02:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.kexec
docs: fix link s390/zfcpdump.rst
2023-10-04 10:41:56 -07:00
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: add prototypes for helper functions
2023-06-09 17:44:17 -07:00
kexec_core.c
crash_core: move crashk_*res definition into crash_core.c
2023-10-04 10:41:58 -07:00
kexec_elf.c
…
kexec_file.c
integrity-v6.6
2023-08-30 09:16:56 -07:00
kexec_internal.h
…
kexec.c
kernel: kexec: copy user-array safely
2023-10-09 16:59:47 +10:00
kheaders.c
kheaders: Use array declaration instead of char
2023-03-24 20:10:59 -07:00
kprobes.c
kprobes: kretprobe scalability improvement
2023-10-18 23:59:54 +09:00
ksyms_common.c
kallsyms: make kallsyms_show_value() as generic function
2023-06-08 12:27:20 -07:00
ksysfs.c
crash: hotplug support for kexec_load()
2023-08-24 16:25:14 -07:00
kthread.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
latencytop.c
…
Makefile
v6.5-rc1-modules-next
2023-06-28 15:51:08 -07:00
module_signature.c
…
notifier.c
notifiers: add tracepoints to the notifiers infrastructure
2023-04-08 13:45:38 -07:00
nsproxy.c
nsproxy: Convert nsproxy.count to refcount_t
2023-08-21 11:29:12 -07:00
padata.c
padata: Fix refcnt handling in padata_free_shell()
2023-10-27 18:04:24 +08:00
panic.c
panic: use atomic_try_cmpxchg in panic() and nmi_panic()
2023-10-04 10:41:56 -07:00
params.c
kernel: params: Remove unnecessary ‘0’ values from err
2023-07-10 12:47:01 -07:00
pid_namespace.c
pid: pid_ns_ctl_handler: remove useless comment
2023-10-04 10:41:57 -07:00
pid_sysctl.h
memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy
2023-08-21 13:37:59 -07:00
pid.c
pidfd: prevent a kernel-doc warning
2023-09-19 13:21:33 -07:00
profile.c
…
ptrace.c
mm: make __access_remote_vm() static
2023-10-18 14:34:15 -07:00
range.c
…
reboot.c
kernel/reboot: Add device to sys_off_handler
2023-07-28 11:33:09 +01:00
regset.c
…
relay.c
kernel: relay: remove unnecessary NULL values from relay_open_buf
2023-08-18 10:18:55 -07:00
resource_kunit.c
…
resource.c
resource: Unify next_resource() and next_resource_skip_children()
2023-10-05 13:58:07 +02:00
rseq.c
rseq: Extend struct rseq with per-memory-map concurrency ID
2022-12-27 12:52:12 +01:00
scftorture.c
scftorture: Pause testing after memory-allocation failure
2023-07-14 15:02:57 -07:00
scs.c
scs: add support for dynamic shadow call stacks
2022-11-09 18:06:35 +00:00
seccomp.c
seccomp: Add missing kerndoc notations
2023-08-17 12:32:15 -07:00
signal.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
smp.c
CSD lock commits for v6.7
2023-10-30 17:56:53 -10:00
smpboot.c
kthread: add kthread_stop_put
2023-10-04 10:41:57 -07:00
smpboot.h
…
softirq.c
sched/core: introduce sched_core_idle_cpu()
2023-07-13 15:21:50 +02:00
stackleak.c
stackleak: allow to specify arch specific stackleak poison function
2023-04-20 11:36:35 +02:00
stacktrace.c
stacktrace: Export stack_trace_save_tsk
2023-09-11 23:59:47 -04:00
static_call_inline.c
…
static_call.c
…
stop_machine.c
…
sys_ni.c
asm-generic updates for v6.7
2023-11-01 15:28:33 -10:00
sys.c
prctl: Disable prctl(PR_SET_MDWE) on parisc
2023-11-18 19:35:31 +01:00
sysctl-test.c
…
sysctl.c
asm-generic updates for v6.7
2023-11-01 15:28:33 -10:00
task_work.c
task_work: add kerneldoc annotation for 'data' argument
2023-09-19 13:21:32 -07:00
taskstats.c
taskstats: fill_stats_for_tgid: use for_each_thread()
2023-10-04 10:41:57 -07:00
torture.c
torture: Print out torture module parameters
2023-09-24 17:24:01 +02:00
tracepoint.c
tracepoint: Allow livepatch module add trace event
2023-02-18 14:34:36 -05:00
tsacct.c
…
ucount.c
sysctl: Add size to register_sysctl
2023-08-15 15:26:17 -07:00
uid16.c
…
uid16.h
…
umh.c
sysctl: fix unused proc_cap_handler() function warning
2023-06-29 15:19:43 -07:00
up.c
smp: Change function signatures to use call_single_data_t
2023-09-13 14:59:24 +02:00
user_namespace.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
user-return-notifier.c
…
user.c
binfmt_misc: enable sandboxed mounts
2023-10-11 08:46:01 -07:00
usermode_driver.c
…
utsname_sysctl.c
utsname: simplify one-level sysctl registration for uts_kern_table
2023-04-13 11:49:35 -07:00
utsname.c
…
vhost_task.c
vhost: Fix worker hangs due to missed wake up calls
2023-06-08 15:43:09 -04:00
watch_queue.c
kernel: watch_queue: copy user-array safely
2023-10-09 16:59:48 +10:00
watchdog_buddy.c
watchdog/hardlockup: move SMP barriers from common code to buddy code
2023-06-19 16:25:28 -07:00
watchdog_perf.c
watchdog/perf: add a weak function for an arch to detect if perf can use NMIs
2023-06-09 17:44:21 -07:00
watchdog.c
watchdog: move softlockup_panic back to early_param
2023-11-01 12:10:02 -07:00
workqueue_internal.h
workqueue: Drop the special locking rule for worker->flags and worker_pool->flags
2023-08-07 15:57:22 -10:00
workqueue.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00