Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Jann Horn 2458ecd21f ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE ... commit ee1fee900537b5d9560e9f937402de5ddc8412f3 upstream. Setting PTRACE_O_SUSPEND_SECCOMP is supposed to be a highly privileged operation because it allows the tracee to completely bypass all seccomp filters on kernels with CONFIG_CHECKPOINT_RESTORE=y. It is only supposed to be settable by a process with global CAP_SYS_ADMIN, and only if that process is not subject to any seccomp filters at all. However, while these permission checks were done on the PTRACE_SETOPTIONS path, they were missing on the PTRACE_SEIZE path, which also sets user-specified ptrace flags. Move the permissions checks out into a helper function and let both ptrace_attach() and ptrace_setoptions() call it. Cc: stable@kernel.org Fixes: 13c4a90119 ("seccomp: add ptrace options for suspend/resume") Signed-off-by: Jann Horn <jannh@google.com> Link: https://lkml.kernel.org/r/20220319010838.1386861-1-jannh@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-15 14:17:58 +02:00
..
bpf	bpf: Add kconfig knob for disabling unpriv bpf by default	2022-02-16 12:52:49 +01:00
cgroup	cgroup/cpuset: Fix a race between cpuset_attach() and cpu hotplug	2022-03-02 11:41:00 +01:00
configs
debug	kdb: Make memory allocations more robust	2021-03-04 10:26:10 +01:00
dma	swiotlb: fix info leak with DMA_FROM_DEVICE	2022-04-15 14:17:55 +02:00
events	perf: Fix list corruption in perf_cgroup_switch()	2022-02-16 12:52:53 +01:00
gcov	gcov: re-fix clang-11+ support	2021-04-14 08:24:10 +02:00
irq	genirq/timings: Fix error return code in irq_timings_test_irqs()	2021-09-15 09:47:29 +02:00
livepatch
locking	locking/lockdep: Avoid RCU-induced noinstr fail	2021-11-17 09:48:28 +01:00
power	PM: s2idle: ACPI: Fix wakeup interrupts handling	2022-02-16 12:52:50 +01:00
printk	printk/console: Allow to disable console output by using console="" or console=null	2021-11-12 14:43:03 +01:00
rcu	rcu: Don't deboost before reporting expedited quiescent state	2022-03-28 08:46:48 +02:00
sched	sched/topology: Fix sched_domain_topology_level alloc in sched_init_numa()	2022-03-08 19:07:48 +01:00
time	timekeeping: Really make sure wall_to_monotonic isn't positive	2021-12-22 09:29:39 +01:00
trace	tracing: Ensure trace buffer is at least 4096 bytes large	2022-03-16 13:21:47 +01:00
.gitignore	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:04:16 +02:00
acct.c
async.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2022-02-23 11:59:56 +01:00
audit.c	audit: improve audit queue handling when "audit=1" on cmdline	2022-02-08 18:24:26 +01:00
audit.h	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:30:59 +02:00
audit_fsnotify.c
audit_tree.c	audit: move put_tree() to avoid trim_trees refcount underflow and UAF	2021-09-03 10:08:16 +02:00
audit_watch.c	audit: CONFIG_CHANGE don't log internal bookkeeping as an event	2020-10-01 13:17:32 +02:00
auditfilter.c	audit: fix a net reference leak in audit_list_rules_send()	2020-06-22 09:30:59 +02:00
auditsc.c	audit: fix possible null-pointer dereference in audit_filter_rules	2021-10-27 09:54:27 +02:00
backtracetest.c
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu.c	cpu/hotplug: Cure the cpusets trainwreck	2021-07-19 08:53:15 +02:00
cpu_pm.c	kernel/cpu_pm: Fix uninitted local in cpu_pm	2020-06-22 09:31:22 +02:00
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c	don't dump the threads that had been already exiting when zapped.	2020-11-18 19:20:31 +01:00
extable.c
fail_function.c	fail_function: Remove a redundant mutex unlock	2020-11-24 13:29:18 +01:00
fork.c	copy_process(): Move fd_install() out of sighand->siglock critical section	2022-02-23 12:00:00 +01:00
freezer.c
futex.c	mm, futex: fix shared futex pgoff on shmem huge page	2021-06-30 08:47:55 -04:00
gen_kheaders.sh	kbuild: add variables for compression tools	2020-09-03 11:27:10 +02:00
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c	kallsyms: Refactor kallsyms_show_value() to take cred	2020-07-16 08:16:44 +02:00
kcmp.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:44:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c	kernel: kexec: remove the lock operation of system_transition_mutex	2021-02-03 23:25:56 +01:00
kexec_elf.c
kexec_file.c	kernel: kexec_file: fix error return code of kexec_calculate_store_digests()	2021-05-19 10:08:28 +02:00
kexec_internal.h
kheaders.c
kmod.c	kmod: make request_module() return an error when autoloading is disabled	2020-04-17 10:50:22 +02:00
kprobes.c	kprobes: Limit max data_size of the kretprobe instances	2021-12-08 09:01:10 +01:00
ksysfs.c
kthread.c	kthread: Fix PF_KTHREAD vs to_kthread() race	2021-09-12 08:56:39 +02:00
latencytop.c
Makefile	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:04:16 +02:00
module-internal.h
module.c	module/ftrace: handle patchable-function-entry	2022-02-23 11:59:56 +01:00
module_signature.c	module: harden ELF info handling	2021-04-07 14:47:38 +02:00
module_signing.c	module: harden ELF info handling	2021-04-07 14:47:38 +02:00
notifier.c	kernel/notifier.c: intercept duplicate registrations to avoid infinite loops	2020-10-01 13:17:23 +02:00
nsproxy.c
padata.c	padata: add separate cpuhp node for CPUHP_PADATA_DEAD	2020-06-17 16:40:22 +02:00
panic.c
params.c
pid.c
pid_namespace.c	memcg: enable accounting for pids in nested pid namespaces	2021-09-22 12:26:37 +02:00
profile.c	profiling: fix shift-out-of-bounds bugs	2021-09-26 14:07:09 +02:00
ptrace.c	ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE	2022-04-15 14:17:58 +02:00
range.c
reboot.c	reboot: fix overflow parsing reboot cpu number	2020-11-18 19:20:30 +01:00
relay.c	kernel/relay.c: fix memleak on destroy relay channel	2020-08-26 10:40:51 +02:00
resource.c	/dev/mem: Revoke mappings when a driver claims the region	2020-06-24 17:50:35 +02:00
rseq.c
seccomp.c	seccomp: Invalidate seccomp mode to catch death failures	2022-02-16 12:52:53 +01:00
signal.c	signal: Remove the bogus sigkill_pending in ptrace_stop	2021-11-17 09:48:24 +01:00
smp.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:44:33 +02:00
smpboot.c	kthread: Extract KTHREAD_IS_PER_CPU	2021-02-07 15:35:49 +01:00
smpboot.h
softirq.c
stackleak.c
stacktrace.c
stop_machine.c
sys.c	prctl: allow to setup brk for et_dyn executables	2021-09-26 14:07:08 +02:00
sys_ni.c
sysctl-test.c	kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()	2020-10-01 13:17:10 +02:00
sysctl.c	x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting	2022-03-11 11:22:37 +01:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing	2021-07-14 16:53:08 +02:00
tsacct.c	taskstats: Cleanup the use of task->exit_code	2022-02-23 11:59:57 +01:00
ucount.c
uid16.c
uid16.h
umh.c	usermodehelper: reset umask to default before executing user process	2020-10-14 10:32:58 +02:00
up.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:44:33 +02:00
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c	watchdog/softlockup: Enforce that timestamp is valid on boot	2020-02-24 08:36:52 +01:00
watchdog_hld.c
workqueue.c	workqueue: Fix unbind_workers() VS wq_worker_running() race	2022-01-16 09:15:38 +01:00
workqueue_internal.h