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torvalds-linux/kernel
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Coiby Xu 62f17d9df6 crash_dump: retrieve dm crypt keys in kdump kernel 
Crash kernel will retrieve the dm crypt keys based on the dmcryptkeys
command line parameter.  When user space writes the key description to
/sys/kernel/config/crash_dm_crypt_key/restore, the crash kernel will save
the encryption keys to the user keyring.  Then user space e.g. 
cryptsetup's --volume-key-keyring API can use it to unlock the encrypted
device.

Link: https://lkml.kernel.org/r/20250502011246.99238-6-coxu@redhat.com
Signed-off-by: Coiby Xu <coxu@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Jan Pazdziora <jpazdziora@redhat.com>
Cc: Liu Pingfan <kernelfans@gmail.com>
Cc: Milan Broz <gmazyland@gmail.com>
Cc: Ondrej Kozina <okozina@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-21 10:48:21 -07:00
..
bpf
bpf: Add namespace to BPF internal symbols
2025-04-25 09:21:23 -07:00
cgroup
cgroup/cpuset-v1: Add missing support for cpuset_v2_mode
2025-04-17 07:32:53 -10:00
configs
- The 6 patch series "Enable strict percpu address space checks" from
2025-04-01 09:29:18 -07:00
debug
TTY/Serial driver updates for 6.15-rc1
2025-04-02 18:17:33 -07:00
dma
dma-coherent: Warn if OF reserved memory is beyond current coherent DMA mask
2025-04-22 17:44:09 +02:00
entry
Objtool changes for v6.15:
2025-03-24 21:18:05 -07:00
events
perf/core: Change to POLLERR for pinned events with error
2025-04-23 09:39:06 +02:00
futex
futex: Use a hashmask instead of hashsize
2025-02-26 16:07:59 +01:00
gcov
gcov: clang: use correct function param names
2025-01-24 22:47:27 -08:00
irq
genirq/msi: Prevent NULL pointer dereference in msi_domain_debug_show()
2025-04-30 23:25:10 +02:00
kcsan
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
livepatch
Modules changes for 6.15-rc1
2025-03-30 15:44:36 -07:00
locking
hung_task: show the blocker task if the task is hung on semaphore
2025-05-11 17:54:08 -07:00
module
ring-buffer updates for v6.15
2025-03-31 13:37:22 -07:00
power
This update includes the following changes:
2025-03-29 10:01:55 -07:00
printk
printk changes for 6.15
2025-03-27 19:22:24 -07:00
rcu
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
sched
Fix sporadic crashes in dequeue_entities() due to ... bad math.
2025-04-26 09:23:20 -07:00
time
timekeeping: Prevent coarse clocks going backwards
2025-04-28 11:17:29 +02:00
trace
tracing: Do not take trace_event_sem in print_event_fields()
2025-05-01 22:44:52 -04:00
.gitignore
…
acct.c
acct: block access to kernel internal filesystems
2025-02-12 12:24:16 +01:00
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
fs: add kern_path_locked_negative()
2025-04-15 11:32:34 +02:00
audit.c
audit: Initialize lsmctx to avoid memory allocation error
2025-01-29 20:02:04 -05:00
audit.h
audit: change context data from secid to lsm_prop
2024-10-11 14:34:16 -04:00
auditfilter.c
audit: fix suffixed '/' filename matching
2024-12-05 19:22:38 -05:00
auditsc.c
fs: dedup handling of struct filename init and refcounts bumps
2025-03-18 15:34:27 +01:00
backtracetest.c
…
bounds.c
…
capability.c
capability: Remove unused has_capability
2025-03-07 22:03:09 -06:00
cfi.c
Modules changes for 6.15-rc1
2025-03-30 15:44:36 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Make RCU watch ct_kernel_exit_state() warning
2025-03-04 18:44:29 -08:00
cpu_pm.c
…
cpu.c
hyperv-next for 6.15
2025-03-25 14:47:04 -07:00
crash_core.c
crash: Use note name macros
2025-02-10 16:56:58 -08:00
crash_dump_dm_crypt.c
crash_dump: retrieve dm crypt keys in kdump kernel
2025-05-21 10:48:21 -07:00
crash_reserve.c
crash: fix spelling mistake "crahskernel" -> "crashkernel"
2025-05-11 17:54:10 -07:00
cred.c
cred: remove old {override,revert}_creds() helpers
2024-12-02 11:25:09 +01:00
delayacct.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
dma.c
…
elfcorehdr.c
…
exec_domain.c
…
exit.c
exit: combine work under lock in synchronize_group_exit() and coredump_task_exit()
2025-05-11 17:54:07 -07:00
exit.h
…
extable.c
…
fail_function.c
…
fork.c
- The 7 patch series "powerpc/crash: use generic crashkernel
2025-04-01 10:06:52 -07:00
freezer.c
sched/fair: Fix external p->on_rq users
2024-10-14 09:14:35 +02:00
gen_kheaders.sh
Revert "kheaders: Ignore silly-rename files"
2025-03-15 21:22:52 +09:00
groups.c
…
hung_task.c
hung_task: show the blocker task if the task is hung on semaphore
2025-05-11 17:54:08 -07:00
iomem.c
mm/memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
2025-02-21 15:05:38 +01:00
irq_work.c
kasan: make kasan_record_aux_stack_noalloc() the default behaviour
2025-01-13 22:40:36 -08:00
jump_label.c
jump_label: Use RCU in all users of __module_text_address().
2025-03-10 11:54:46 +01:00
kallsyms_internal.h
kallsyms: get rid of code for absolute kallsyms
2024-07-20 16:33:21 +09:00
kallsyms_selftest.c
kallsyms: Use kthread_run_on_cpu()
2025-01-02 22:12:12 +01:00
kallsyms_selftest.h
…
kallsyms.c
kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU
2025-02-18 10:16:04 +01:00
kcmp.c
kcmp: improve performance adding an unlikely hint to task comparisons
2025-02-21 10:25:33 +01:00
Kconfig.freezer
…
Kconfig.hz
kernel: Fix "select" wording on HZ_250 description
2025-02-21 09:20:30 +01:00
Kconfig.kexec
crash_dump: make dm crypt keys persist for the kdump kernel
2025-05-21 10:48:20 -07:00
Kconfig.locks
…
Kconfig.preempt
sched: No PREEMPT_RT=y for all{yes,mod}config
2024-11-07 15:25:05 +01:00
kcov.c
kcov: mark in_softirq_really() as __always_inline
2024-12-30 17:59:08 -08:00
kexec_core.c
- The 7 patch series "powerpc/crash: use generic crashkernel
2025-04-01 10:06:52 -07:00
kexec_elf.c
kexec: initialize ELF lowest address to ULONG_MAX
2025-03-16 22:30:47 -07:00
kexec_file.c
kexec_file: allow to place kexec_buf randomly
2025-05-21 10:48:20 -07:00
kexec_internal.h
kexec: use atomic_try_cmpxchg_acquire() in kexec_trylock()
2024-09-01 20:43:23 -07:00
kexec.c
…
kheaders.c
kheaders: Simplify attribute through __BIN_ATTR_SIMPLE_RO()
2024-12-24 09:46:49 +01:00
kprobes.c
kprobes: Use RCU in all users of __module_text_address().
2025-03-10 11:54:46 +01:00
ksyms_common.c
…
ksysfs.c
kernel/ksysfs.c: simplify bin_attribute definition
2025-01-07 16:59:15 +01:00
kthread.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
latencytop.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
Makefile
crash_dump: make dm crypt keys persist for the kdump kernel
2025-05-21 10:48:20 -07:00
module_signature.c
…
notifier.c
reboot: move reboot_notifier_list to kernel/reboot.c
2024-11-05 17:12:31 -08:00
nsproxy.c
fdget(), trivial conversions
2024-11-03 01:28:06 -05:00
padata.c
padata: switch padata_find_next() to using cpumask_next_wrap()
2025-02-24 16:37:23 -05:00
panic.c
These are objtool fixes and updates by Josh Poimboeuf, centered
2025-04-02 10:30:10 -07:00
params.c
module: ensure that kobject_put() is safe for module type kobjects
2025-05-07 20:24:59 +02:00
pid_namespace.c
pid: Do not set pid_max in new pid namespaces
2025-03-06 10:18:36 +01:00
pid_sysctl.h
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
pid.c
kernel-6.15-rc1.tasklist_lock
2025-03-24 13:39:27 -07:00
profile.c
profiling: remove profile=sleep support
2024-08-04 13:36:28 -07:00
ptrace.c
…
range.c
…
reboot.c
- The 7 patch series "powerpc/crash: use generic crashkernel
2025-04-01 10:06:52 -07:00
regset.c
…
relay.c
relay: remove unused relay_late_setup_files
2025-05-11 17:54:09 -07:00
resource_kunit.c
resource, kunit: fix user-after-free in resource_test_region_intersects()
2024-10-09 12:47:19 -07:00
resource.c
resource: replace open coded variant of DEFINE_RES()
2025-03-21 22:10:05 -07:00
rseq.c
rseq: Fix segfault on registration when rseq_cs is non-zero
2025-03-06 22:26:49 +01:00
scftorture.c
scftorture: Handle NULL argument passed to scf_add_to_free_list().
2024-11-14 16:09:51 -08:00
scs.c
…
seccomp.c
seccomp: avoid the lock trip seccomp_filter_release in common case
2025-02-24 11:17:10 -08:00
signal.c
vfs-6.15-rc1.fixes
2025-04-02 16:05:21 -07:00
smp.c
CSD-lock pull request for v6.14
2025-01-28 11:34:03 -08:00
smpboot.c
…
smpboot.h
…
softirq.c
lockdep: Fix wait context check on softirq for PREEMPT_RT
2025-03-25 10:46:44 +01:00
stackleak.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
stacktrace.c
…
static_call_inline.c
Modules changes for 6.15-rc1
2025-03-30 15:44:36 -07:00
static_call.c
…
stop_machine.c
stop-machine: Add comment for rcu_momentary_eqs()
2025-03-11 10:15:52 -07:00
sys_ni.c
Probes updates for v6.11:
2024-07-18 12:19:20 -07:00
sys.c
Updates for the core time/timer subsystem:
2025-03-25 10:33:23 -07:00
sysctl-test.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
sysctl.c
s390 updates for 6.15 merge window
2025-03-29 11:59:43 -07:00
task_work.c
kasan: make kasan_record_aux_stack_noalloc() the default behaviour
2025-01-13 22:40:36 -08:00
taskstats.c
fdget(), more trivial conversions
2024-11-03 01:28:06 -05:00
torture.c
torture: Add get_torture_init_jiffies() for test-start time
2025-02-05 07:14:24 -08:00
tracepoint.c
tracepoint: Print the function symbol when tracepoint_debug is set
2025-03-21 15:30:10 -04:00
tsacct.c
…
ucount.c
ucount: use rcuref_t for reference counting
2025-03-16 22:30:50 -07:00
uid16.c
…
uid16.h
…
umh.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
up.c
…
user_namespace.c
uidgid: add map_id_range_up()
2025-02-12 12:12:27 +01:00
user-return-notifier.c
…
user.c
uidgid: make sure we fit into one cacheline
2024-09-12 12:16:09 +02:00
usermode_driver.c
…
utsname_sysctl.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
utsname.c
…
vhost_task.c
vhost_task: fix vhost_task_create() documentation
2025-04-18 10:08:11 -04:00
vmcore_info.c
crash: export PAGE_UNACCEPTED_MAPCOUNT_VALUE to vmcoreinfo
2025-05-11 17:54:04 -07:00
watch_queue.c
vfs-6.15-rc1.pipe
2025-03-24 09:52:37 -07:00
watchdog_buddy.c
…
watchdog_perf.c
- The 7 patch series "powerpc/crash: use generic crashkernel
2025-04-01 10:06:52 -07:00
watchdog.c
watchdog: fix watchdog may detect false positive of softlockup
2025-05-11 17:54:10 -07:00
workqueue_internal.h
…
workqueue.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00