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Thomas Weißschuh 0e148d3cca stackleak: Use a copy of the ctl_table argument 
Sysctl handlers are not supposed to modify the ctl_table passed to them.
Adapt the logic to work with a temporary variable, similar to how it is
done in other parts of the kernel.

This is also a prerequisite to enforce the immutability of the argument
through the callbacks.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tycho Andersen <tycho@tycho.pizza>
Link: https://lore.kernel.org/r/20240503-sysctl-const-stackleak-v1-1-603fecb19170@weissschuh.net
Signed-off-by: Kees Cook <keescook@chromium.org>
2024-05-03 12:35:12 -07:00
..
bpf
Merge tag 'kbuild-fixes-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2024-03-31 11:23:51 -07:00
cgroup
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configs
hardening: Enable KCFI and some other options
2024-05-01 12:38:14 -07:00
debug
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dma
Merge tag 'dma-mapping-6.9-2024-03-24' of git://git.infradead.org/users/hch/dma-mapping
2024-03-24 10:45:31 -07:00
entry
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events
Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-03-14 17:43:30 -07:00
futex
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gcov
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irq
genirq: Introduce IRQF_COND_ONESHOT and use it in pinctrl-amd
2024-03-25 23:45:21 +01:00
kcsan
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livepatch
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locking
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module
Merge tag 'v6.9-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2024-03-25 10:48:23 -07:00
power
Merge tag 'rtc-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2024-03-21 17:16:46 -07:00
printk
Merge tag 'printk-for-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
2024-03-26 09:25:57 -07:00
rcu
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sched
Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-03-22 10:41:13 -07:00
time
Fix memory leak in posix_clock_open()
2024-03-27 09:03:22 -07:00
trace
Merge tag 'probes-fixes-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2024-03-27 10:01:24 -07:00
.gitignore
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acct.c
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async.c
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audit_fsnotify.c
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audit_tree.c
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audit_watch.c
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audit.c
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audit.h
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auditfilter.c
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auditsc.c
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backtracetest.c
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bounds.c
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capability.c
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cfi.c
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compat.c
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configs.c
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context_tracking.c
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cpu_pm.c
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cpu.c
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crash_core.c
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crash_reserve.c
crash: use macro to add crashk_res into iomem early for specific arch
2024-03-26 11:14:12 -07:00
cred.c
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delayacct.c
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dma.c
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elfcorehdr.c
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exec_domain.c
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exit.c
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exit.h
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extable.c
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fail_function.c
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fork.c
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freezer.c
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gen_kheaders.sh
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groups.c
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hung_task.c
kernel/hung_task.c: export sysctl_hung_task_timeout_secs
2024-03-13 21:22:04 -04:00
iomem.c
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irq_work.c
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jump_label.c
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kallsyms_internal.h
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kallsyms_selftest.c
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kallsyms_selftest.h
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kallsyms.c
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kcmp.c
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Kconfig.freezer
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Kconfig.hz
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Kconfig.kexec
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Kconfig.locks
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Kconfig.preempt
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kcov.c
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kexec_core.c
Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-03-14 18:03:09 -07:00
kexec_elf.c
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kexec_file.c
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kexec_internal.h
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kexec.c
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kheaders.c
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kprobes.c
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ksyms_common.c
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ksysfs.c
Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2024-03-21 13:34:15 -07:00
kthread.c
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latencytop.c
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Makefile
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module_signature.c
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notifier.c
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nsproxy.c
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numa.c
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padata.c
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panic.c
Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-03-14 18:03:09 -07:00
params.c
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pid_namespace.c
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pid_sysctl.h
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pid.c
pidfs: remove config option
2024-03-13 12:53:53 -07:00
profile.c
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ptrace.c
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range.c
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reboot.c
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regset.c
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relay.c
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resource_kunit.c
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resource.c
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rseq.c
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scftorture.c
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scs.c
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seccomp.c
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signal.c
Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-03-14 18:03:09 -07:00
smp.c
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smpboot.c
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smpboot.h
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softirq.c
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stackleak.c
stackleak: Use a copy of the ctl_table argument
2024-05-03 12:35:12 -07:00
stacktrace.c
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static_call_inline.c
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static_call.c
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stop_machine.c
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sys_ni.c
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sys.c
prctl: generalize PR_SET_MDWE support check to be per-arch
2024-03-26 11:07:22 -07:00
sysctl-test.c
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sysctl.c
tracing: Support to dump instance traces by ftrace_dump_on_oops
2024-03-18 10:33:06 -04:00
task_work.c
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taskstats.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
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up.c
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user_namespace.c
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user-return-notifier.c
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user.c
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usermode_driver.c
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utsname_sysctl.c
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utsname.c
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vhost_task.c
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vmcore_info.c
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watch_queue.c
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watchdog_buddy.c
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watchdog_perf.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2024-03-21 13:34:15 -07:00