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linux-stable-mirror/kernel
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Masami Hiramatsu (Google) da102725b4 ring-buffer: Fix to update per-subbuf entries of persistent ring buffer 
commit f35dbac694 upstream.

Since the validation loop in rb_meta_validate_events() updates the same
cpu_buffer->head_page->entries, the other subbuf entries are not updated.
Fix to use head_page to update the entries field, since it is the cursor
in this loop.

Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Fixes: 5f3b6e839f ("ring-buffer: Validate boot range memory events")
Link: https://patch.msgid.link/177391153882.193994.17158784065013676533.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:56 +01:00
..
bpf
bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim
2026-03-13 17:20:42 +01:00
cgroup
cgroup: fix race between task migration and iteration
2026-03-25 11:08:30 +01:00
configs
Remove WARN_ALL_UNSEEDED_RANDOM kernel config option
2026-03-04 07:21:32 -05:00
debug
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
dma
dma/pool: distinguish between missing and exhausted atomic pools
2026-02-06 16:55:44 +01:00
entry
…
events
x86/uprobes: Fix XOL allocation failure for 32-bit tasks
2026-03-25 11:08:44 +01:00
futex
futex: Don't leak robust_list pointer on exec race
2025-11-13 15:34:06 -05:00
gcov
gcov: add support for GCC 15
2025-11-24 10:35:59 +01:00
irq
kexec: Consolidate machine_kexec_mask_interrupts() implementation
2026-03-25 11:08:25 +01:00
kcsan
kcsan: test: Initialize dummy variable
2025-08-15 12:13:46 +02:00
livepatch
livepatch: Match old_sympos 0 and 1 in klp_find_func()
2026-01-08 10:13:56 +01:00
locking
locktorture: Fix memory leak in param_set_cpumask()
2025-12-18 13:54:54 +01:00
module
module: add helper function for reading module_buildid()
2026-03-04 07:20:02 -05:00
power
PM: hibernate: Use atomic64_t for compressed_size variable
2025-11-24 10:36:03 +01:00
printk
printk: nbcon: Allow reacquire during panic
2025-08-20 18:30:47 +02:00
rcu
rcu: Fix rcu_read_unlock() deadloop due to softirq
2026-03-04 07:19:21 -05:00
sched
sched: idle: Consolidate the handling of two special cases
2026-03-25 11:08:53 +01:00
time
time/jiffies: Mark jiffies_64_to_clock_t() notrace
2026-03-25 11:08:33 +01:00
trace
ring-buffer: Fix to update per-subbuf entries of persistent ring buffer
2026-03-25 11:08:56 +01:00
.gitignore
…
acct.c
acct: block access to kernel internal filesystems
2025-02-27 04:30:23 -08:00
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
…
audit.c
…
audit.h
audit,module: restore audit logging in load failure case
2025-08-15 12:13:31 +02:00
auditfilter.c
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auditsc.c
audit,module: restore audit logging in load failure case
2025-08-15 12:13:31 +02:00
backtracetest.c
…
bounds.c
…
capability.c
…
cfi.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
watchdog/hardlockup/perf: Fix perf_event memory leak
2025-04-10 14:39:11 +02:00
crash_core.c
crash: fix crashkernel resource shrink
2025-11-24 10:36:01 +01:00
crash_reserve.c
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cred.c
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delayacct.c
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dma.c
…
elfcorehdr.c
…
exec_domain.c
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exit.c
perf: Fix sample vs do_exit()
2025-06-27 11:11:45 +01:00
exit.h
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extable.c
…
fail_function.c
…
fork.c
unshare: fix unshare_fs() handling
2026-03-25 11:08:24 +01:00
freezer.c
sched,freezer: Remove unnecessary warning in __thaw_task
2025-07-24 08:56:37 +02:00
gen_kheaders.sh
kheaders: Ignore silly-rename files
2025-01-23 17:22:55 +01:00
groups.c
…
hung_task.c
…
iomem.c
…
irq_work.c
…
jump_label.c
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kallsyms_internal.h
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kallsyms_selftest.c
…
kallsyms_selftest.h
…
kallsyms.c
kallsyms/ftrace: set module buildid in ftrace_mod_address_lookup()
2026-03-04 07:20:02 -05:00
kcmp.c
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Kconfig.freezer
…
Kconfig.hz
…
Kconfig.kexec
crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
2024-11-14 22:43:48 -08:00
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: mark in_softirq_really() as __always_inline
2025-01-09 13:33:49 +01:00
kexec_core.c
kexec: define functions to map and unmap segments
2026-03-13 17:20:27 +01:00
kexec_elf.c
kexec: initialize ELF lowest address to ULONG_MAX
2025-04-10 14:39:24 +02:00
kexec_file.c
kexec: derive purgatory entry from symbol
2026-03-04 07:21:51 -05:00
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kprobes.c
kprobes: Remove unneeded warnings from __arm_kprobe_ftrace()
2026-03-25 11:08:48 +01:00
ksyms_common.c
…
ksysfs.c
…
kthread.c
kthread: unpark only parked kthread
2024-10-09 12:47:19 -07:00
latencytop.c
…
Makefile
…
module_signature.c
…
notifier.c
…
nsproxy.c
…
padata.c
padata: Reset next CPU when reorder sequence wraps around
2025-10-23 16:20:42 +02:00
panic.c
objtool, panic: Disable SMAP in __stack_chk_fail()
2025-05-02 07:59:19 +02:00
params.c
module: ensure that kobject_put() is safe for module type kobjects
2025-05-18 08:24:54 +02:00
pid_namespace.c
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pid_sysctl.h
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pid.c
pid: Add a judgment for ns null in pid_nr_ns
2025-10-19 16:34:05 +02:00
profile.c
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ptrace.c
…
range.c
…
reboot.c
Flush console log from kernel_power_off()
2025-04-20 10:15:12 +02:00
regset.c
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relay.c
[tree-wide] finally take no_llseek out
2024-09-27 08:18:43 -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
Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
2025-12-18 13:55:11 +01:00
rseq.c
rseq: Clarify rseq registration rseq_size bound check comment
2026-03-13 17:20:17 +01:00
scftorture.c
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scs.c
scs: fix a wrong parameter in __scs_magic
2026-01-08 10:14:21 +01:00
seccomp.c
seccomp: passthrough uprobe systemcall without filtering
2025-11-02 22:15:20 +09:00
signal.c
pidfs: improve multi-threaded exec and premature thread-group leader exit polling
2025-05-29 11:02:09 +02:00
smp.c
smp: Fix up and expand the smp_call_function_many() kerneldoc
2025-10-15 12:00:02 +02:00
smpboot.c
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smpboot.h
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softirq.c
lockdep: Fix wait context check on softirq for PREEMPT_RT
2025-05-29 11:02:08 +02:00
stackleak.c
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stacktrace.c
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static_call_inline.c
x86/static-call: provide a way to do very early static-call updates
2024-12-19 18:13:23 +01:00
static_call.c
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stop_machine.c
sched/core: Fix migrate_swap() vs. hotplug
2025-07-17 18:37:03 +02:00
sys_ni.c
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sys.c
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
2025-10-19 16:33:51 +02:00
sysctl-test.c
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sysctl.c
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task_work.c
task_work: Fix NMI race condition
2025-12-18 13:54:50 +01:00
taskstats.c
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torture.c
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tracepoint.c
tracepoint: Support iterating tracepoints in a loading module
2024-09-25 23:23:44 +09:00
tsacct.c
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ucount.c
ucount: check for CAP_SYS_RESOURCE using ns_capable_noaudit()
2026-03-04 07:20:08 -05:00
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
vhost: Take a reference on the task in struct vhost_task.
2025-10-02 13:44:10 +02:00
vmcore_info.c
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watch_queue.c
watch_queue: fix pipe accounting mismatch
2025-04-10 14:39:10 +02:00
watchdog_buddy.c
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watchdog_perf.c
watchdog/hardlockup/perf: Fix perf_event memory leak
2025-04-10 14:39:11 +02:00
watchdog.c
watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
2026-03-04 07:21:54 -05:00
workqueue_internal.h
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workqueue.c
workqueue: Use POOL_BH instead of WQ_BH when checking pool flags
2026-03-25 11:08:26 +01:00