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Linus Torvalds a9c309fb49 proc: proc_skip_spaces() shouldn't think it is working on C strings 
commit bce9332220bd677d83b19d21502776ad555a0e73 upstream.

proc_skip_spaces() seems to think it is working on C strings, and ends
up being just a wrapper around skip_spaces() with a really odd calling
convention.

Instead of basing it on skip_spaces(), it should have looked more like
proc_skip_char(), which really is the exact same function (except it
skips a particular character, rather than whitespace).  So use that as
inspiration, odd coding and all.

Now the calling convention actually makes sense and works for the
intended purpose.

Reported-and-tested-by: Kyle Zeng <zengyhkyle@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-08 11:18:32 +01:00
..
bpf
bpf: Ensure correct locking around vulnerable function find_vpid()
2022-10-26 13:19:25 +02:00
cgroup
cgroup: Use separate src/dst nodes when preloading css_sets for migration
2022-07-21 21:09:26 +02:00
configs
kconfig: tinyconfig: remove stale stack protector fixups
2018-06-15 07:15:28 +09:00
debug
kdb: Make memory allocations more robust
2021-03-04 09:39:31 +01:00
dma
swiotlb: skip swiotlb_bounce when orig_addr is zero
2022-07-02 16:27:40 +02:00
events
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
2022-07-29 17:10:31 +02:00
gcov
gcov: support GCC 12.1 and newer compilers
2022-10-26 13:19:42 +02:00
irq
random: remove unused irq_flags argument from add_interrupt_randomness()
2022-06-25 11:49:01 +02:00
livepatch
livepatch: fix race between fork and KLP transition
2022-10-26 13:19:23 +02:00
locking
locking/lockdep: Avoid RCU-induced noinstr fail
2021-11-26 11:36:04 +01:00
power
PM: hibernate: Allow hybrid sleep to work with s2idle
2022-11-03 23:52:31 +09:00
printk
printk: fix return value of printk.devkmsg __setup handler
2022-04-15 14:14:45 +02:00
rcu
rcu: Fix missed wakeup of exp_wq waiters
2021-09-26 13:39:46 +02:00
sched
sched/deadline: Fix priority inheritance with multiple scheduling classes
2022-09-05 10:26:28 +02:00
time
timekeeping: Add raw clock fallback for random_get_entropy()
2022-06-25 11:49:10 +02:00
trace
ring_buffer: Do not deactivate non-existant pages
2022-11-25 17:40:25 +01:00
.gitignore
…
acct.c
acct_on(): don't mess with freeze protection
2019-05-31 06:46:05 -07:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 11:58:38 +01:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-09-05 10:26:28 +02:00
audit_tree.c
audit: Embed key into chunk
2019-12-13 08:51:11 +01:00
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:14:33 +02:00
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:23:13 +01:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditsc.c
audit: print empty EXECVE args
2019-12-01 09:17:17 +01:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2018-11-13 11:08:47 -08:00
capability.c
LSM: generalize flag passing to security_capable
2020-01-23 08:21:29 +01:00
compat.c
make 'user_access_begin()' do 'access_ok()'
2020-06-22 09:04:58 +02:00
configs.c
…
context_tracking.c
…
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:05:28 +02:00
cpu.c
random: clear fast pool, crng, and batches in cpuhp bring up
2022-06-25 11:49:07 +02:00
crash_core.c
kernel/crash_core.c: print timestamp using time64_t
2018-08-22 10:52:47 -07:00
crash_dump.c
…
cred.c
memcg: account security cred as well to kmemcg
2020-01-09 10:19:00 +01:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
futex: Mark the begin of futex exit explicitly
2021-01-30 13:32:11 +01:00
extable.c
…
fail_function.c
fail_function: Remove a redundant mutex unlock
2020-11-24 13:27:23 +01:00
fork.c
mm/hugetlb: initialize hugetlb_usage in mm_init
2021-09-22 11:48:09 +02:00
freezer.c
PM / reboot: Eliminate race between reboot and suspend
2018-08-06 12:35:20 +02:00
futex.c
mm, futex: fix shared futex pgoff on shmem huge page
2021-07-11 12:49:30 +02:00
groups.c
…
hung_task.c
kernel: hung_task.c: disable on suspend
2019-04-20 09:16:02 +02:00
iomem.c
…
irq_work.c
irq_work: Do not raise an IPI when queueing work on the local CPU
2019-05-31 06:46:19 -07:00
jump_label.c
locking/static_key: Fix false positive warnings on concurrent dec/inc
2021-03-04 09:39:30 +01:00
kallsyms.c
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:17:26 +02:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
kconfig: include kernel/Kconfig.preempt from init/Kconfig
2018-08-02 08:06:54 +09:00
kcov.c
kernel/kcov.c: mark write_comp_data() as notrace
2019-02-12 19:47:20 +01:00
kexec_core.c
kernel: kexec: remove the lock operation of system_transition_mutex
2021-02-03 23:23:23 +01:00
kexec_file.c
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
2022-07-02 16:27:39 +02:00
kexec_internal.h
…
kexec.c
kexec: add call to LSM hook in original kexec_load syscall
2018-07-16 12:31:57 -07:00
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:48:52 +02:00
kprobes.c
kprobe: reverse kp->flags when arm_kprobe failed
2022-11-10 17:46:54 +01:00
ksysfs.c
…
kthread.c
kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
2021-07-11 12:49:31 +02:00
latencytop.c
…
Makefile
elfcore: fix building with clang
2021-02-10 09:21:06 +01:00
memremap.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-29 16:43:27 +01:00
module_signing.c
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
module-internal.h
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
module.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 11:58:38 +01:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-03-25 08:06:13 +01:00
nsproxy.c
…
padata.c
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2021-08-08 08:54:30 +02:00
panic.c
kernel/panic.c: do not append newline to the stack protector panic string
2019-12-01 09:17:10 +01:00
params.c
…
pid_namespace.c
memcg: enable accounting for pids in nested pid namespaces
2021-09-22 11:48:09 +02:00
pid.c
Fix failure path in alloc_pid()
2019-01-13 09:51:06 +01:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-25 11:15:20 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-14 16:59:14 +02:00
range.c
…
reboot.c
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:18:52 +01:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:30:59 +02:00
resource.c
resource: fix locking in find_next_iomem_res()
2019-09-16 08:22:20 +02:00
rseq.c
rseq: uapi: Declare rseq_cs field as union, update includes
2018-07-10 22:18:52 +02:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:51:47 +01:00
signal.c
signal handling: don't use BUG_ON() for debugging
2022-07-21 21:09:32 +02:00
smp.c
smp: Fix offline cpu check in flush_smp_call_function_queue()
2022-04-20 09:12:50 +02:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 14:48:38 +01:00
smpboot.h
…
softirq.c
nohz: Fix missing tick reprogram when interrupting an inline softirq
2018-08-03 15:52:10 +02:00
stacktrace.c
…
stop_machine.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-09-05 10:26:28 +02:00
sys.c
prctl: allow to setup brk for et_dyn executables
2021-09-26 13:39:47 +02:00
sysctl_binary.c
…
sysctl.c
proc: proc_skip_spaces() shouldn't think it is working on C strings
2022-12-08 11:18:32 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:18:59 +01:00
test_kprobes.c
kprobes: Remove jprobe API implementation
2018-06-21 12:33:05 +02:00
torture.c
torture: Keep old-school dmesg format
2018-06-25 11:30:10 -07:00
tracepoint.c
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
2021-07-20 16:15:42 +02:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-02-23 11:58:39 +01:00
ucount.c
…
uid16.c
…
uid16.h
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-14 10:31:21 +02:00
up.c
smp: Fix smp_call_function_single_async prototype
2021-05-22 10:59:39 +02:00
user_namespace.c
userns: also map extents in the reverse map to kernel IDs
2018-11-13 11:09:00 -08:00
user-return-notifier.c
…
user.c
userns: use irqsave variant of refcount_dec_and_lock()
2018-08-22 10:52:47 -07:00
utsname_sysctl.c
sys: don't hold uts_sem while accessing userspace memory
2018-08-11 02:05:53 -05:00
utsname.c
…
watchdog_hld.c
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
watchdog.c
watchdog: export lockup_detector_reconfigure
2022-08-25 11:15:46 +02:00
workqueue_internal.h
…
workqueue.c
workqueue: don't skip lockdep work dependency in cancel_work_sync()
2022-09-28 11:02:58 +02:00