Alexey Dobriyan c995f12ad8 prctl: fix PR_SET_MM_AUXV kernel stack leak ... Doing a prctl(PR_SET_MM, PR_SET_MM_AUXV, addr, 1); will copy 1 byte from userspace to (quite big) on-stack array and then stash everything to mm->saved_auxv. AT_NULL terminator will be inserted at the very end. /proc/*/auxv handler will find that AT_NULL terminator and copy original stack contents to userspace. This devious scheme requires CAP_SYS_RESOURCE. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-03-14 14:33:27 -07:00
..
bpf	bpf: Explicitly zero-extend R0 after 32-bit cmpxchg	2021-03-04 19:06:03 -08:00
cgroup	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
configs	staging: ION: remove some references to CONFIG_ION	2021-01-06 17:39:38 +01:00
debug	kgdb: fix to kill breakpoints on initmem after boot	2021-02-26 09:41:05 -08:00
dma	Merge branch 'stable/for-linus-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb	2021-02-26 13:59:32 -08:00
entry	entry: Explicitly flush pending rcuog wakeup before last rescheduling point	2021-02-17 14:12:43 +01:00
events	perf/core: Flush PMU internal buffers for per-CPU events	2021-03-06 12:52:39 +01:00
gcov	init/gcov: allow CONFIG_CONSTRUCTORS on UML to fix module gcov	2021-02-05 11:03:47 -08:00
irq	irqdomain: Remove debugfs_file from struct irq_domain	2021-03-08 20:12:08 +00:00
kcsan	kcsan: Rewrite kcsan_prandom_u32_max() without prandom_u32_state()	2021-01-04 14:39:07 -08:00
livepatch	kallsyms: refactor {,module_}kallsyms_on_each_symbol	2021-02-08 12:22:08 +01:00
locking	kernel: delete repeated words in comments	2021-02-26 09:41:03 -08:00
power	Merge branches 'powercap' and 'pm-misc'	2021-02-15 18:50:01 +01:00
printk	Merge branch 'printk-rework' into for-linus	2021-02-22 13:43:55 +01:00
rcu	Scheduler updates for v5.12:	2021-02-21 12:35:04 -08:00
sched	sched/membarrier: fix missing local execution of ipi_sync_rq_state()	2021-03-06 12:40:21 +01:00
time	hrtimer: Update softirq_expires_next correctly after __hrtimer_get_next_event()	2021-03-08 09:37:01 +01:00
trace	tracing: Skip selftests if tracing is disabled	2021-03-04 09:51:25 -05:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	preempt: Introduce CONFIG_PREEMPT_DYNAMIC	2021-02-17 14:12:24 +01:00
Makefile	kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE	2021-02-16 09:59:41 +01:00
acct.c	…
async.c	…
audit.c	audit: Remove leftover reference to the audit_tasklet	2021-01-15 11:58:10 -05:00
audit.h	…
audit_fsnotify.c	audit_alloc_mark(): don't open-code ERR_CAST()	2021-02-23 10:25:27 -05:00
audit_tree.c	…
audit_watch.c	…
auditfilter.c	…
auditsc.c	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
backtracetest.c	…
bounds.c	…
capability.c	capability: handle idmapped mounts	2021-01-24 14:27:16 +01:00
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	cpu/hotplug: Add lockdep_is_cpus_held()	2021-01-06 16:24:59 -08:00
cpu_pm.c	…
crash_core.c	…
crash_dump.c	…
cred.c	…
delayacct.c	…
dma.c	…
exec_domain.c	…
exit.c	kernel/io_uring: cancel io_uring before task works	2020-12-30 19:36:54 -07:00
extable.c	…
fail_function.c	fault-injection: handle EI_ETYPE_TRUE	2020-12-15 22:46:19 -08:00
fork.c	Merge branch 'akpm' (patches from Andrew)	2021-03-14 12:23:34 -07:00
freezer.c	…
futex.c	Merge branch 'linus' into locking/core, to pick up upstream fixes	2021-02-12 12:54:58 +01:00
gen_kheaders.sh	…
groups.c	groups: simplify struct group_info allocation	2021-02-26 09:41:03 -08:00
hung_task.c	…
iomem.c	…
irq_work.c	…
jump_label.c	jump_label: Fix usage in module __init	2020-12-18 16:53:12 +01:00
kallsyms.c	kallsyms: only build {,module_}kallsyms_on_each_symbol when required	2021-02-08 12:24:04 +01:00
kcmp.c	…
kcov.c	…
kexec.c	…
kexec_core.c	Merge branch 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-02-21 09:29:23 -08:00
kexec_elf.c	…
kexec_file.c	ima: Free IMA measurement buffer after kexec syscall	2021-02-10 15:49:38 -05:00
kexec_internal.h	kexec: move machine_kexec_post_load() to public interface	2021-02-22 12:33:26 +00:00
kheaders.c	…
kmod.c	…
kprobes.c	kprobes: Fix to delay the kprobes jump optimization	2021-02-19 14:57:12 -05:00
ksysfs.c	…
kthread.c	- Correct the marking of kthreads which are supposed to run on a specific,	2021-01-24 10:09:20 -08:00
latencytop.c	…
module-internal.h	…
module.c	module: potential uninitialized return in module_kallsyms_on_each_symbol()	2021-02-10 16:57:04 +01:00
module_signature.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
module_signing.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
notifier.c	…
nsproxy.c	…
padata.c	…
panic.c	…
params.c	Modules updates for v5.11	2020-12-17 13:01:31 -08:00
pid.c	…
pid_namespace.c	…
profile.c	…
ptrace.c	kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals	2021-02-21 17:25:22 -07:00
range.c	…
reboot.c	reboot: hide from sysfs not applicable settings	2020-12-15 22:46:19 -08:00
regset.c	…
relay.c	relay: allow the use of const callback structs	2020-12-15 22:46:18 -08:00
resource.c	resource: Move devmem revoke code to resource framework	2021-01-12 14:26:31 +01:00
resource_kunit.c	…
rseq.c	…
scftorture.c	scftorture: Add debug output for wrong-CPU warning	2021-01-04 13:53:41 -08:00
scs.c	…
seccomp.c	seccomp: Improve performace by optimizing rmb()	2021-02-10 12:40:11 -08:00
signal.c	kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals	2021-02-21 17:25:22 -07:00
smp.c	smp: Process pending softirqs in flush_smp_call_function_from_idle()	2021-02-17 14:12:42 +01:00
smpboot.c	kthread: Extract KTHREAD_IS_PER_CPU	2021-01-22 15:09:42 +01:00
smpboot.h	…
softirq.c	softirq: Move do_softirq_own_stack() to generic asm header	2021-02-10 23:34:16 +01:00
stackleak.c	…
stacktrace.c	…
static_call.c	static_call: Fix the module key fixup	2021-03-06 12:49:08 +01:00
stop_machine.c	…
sys.c	prctl: fix PR_SET_MM_AUXV kernel stack leak	2021-03-14 14:33:27 -07:00
sys_ni.c	epoll: wire up syscall epoll_pwait2	2020-12-19 11:18:38 -08:00
sysctl-test.c	…
sysctl.c	sysctl.c: fix underflow value setting risk in vm_table	2021-02-26 09:41:03 -08:00
task_work.c	…
taskstats.c	…
test_kprobes.c	…
torture.c	torture: Maintain torture-specific set of CPUs-online books	2021-01-06 17:17:22 -08:00
tracepoint.c	tracepoints: Code clean up	2021-02-09 12:27:29 -05:00
tsacct.c	…
ucount.c	…
uid16.c	…
uid16.h	…
umh.c	…
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	…
usermode_driver.c	…
utsname.c	…
utsname_sysctl.c	…
watch_queue.c	watch_queue: rectify kernel-doc for init_watch()	2021-01-26 11:16:34 +00:00
watchdog.c	…
watchdog_hld.c	…
workqueue.c	Merge branch 'for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2021-02-22 17:06:54 -08:00
workqueue_internal.h	…