Vincent Donnefort 78cd56c2a9 ring-buffer: Fix reader page read offset for remote buffers ...

A page swapped in by __rb_get_reader_page_from_remote() retains its
stale read offset, causing subsequent reads to skip events or read
past valid data. Fix it.

Link: https://patch.msgid.link/20260729133609.4022734-1-vdonnefort@google.com
Fixes: fbd1743ecb ("ring-buffer: Add non-consuming read for ring-buffer remotes")
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Reviewed-by: Keir Fraser <keirf@google.com>
Tested-by: Keir Fraser <keirf@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2026-07-29 19:41:14 -04:00

..

rv

rv: Use 0 to check preemption enabled in opid

2026-06-03 12:33:25 +02:00

blktrace.c

Merge tag 'block-7.0-20260305' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2026-03-06 08:36:18 -08:00

bpf_trace.c

bpf: Add missing access_ok call to copy_user_syms

2026-06-21 18:01:33 -07:00

bpf_trace.h

tracing/treewide: Remove second parameter of __assign_str()

2024-05-22 20:14:47 -04:00

error_report-traces.c

…

fgraph.c

fgraph: Do not call handlers direct when not using ftrace_ops

2026-02-19 15:21:22 -05:00

fprobe.c

tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()

2026-06-30 23:58:19 +09:00

ftrace_internal.h

function_graph: Make fgraph_update_pid_func() a stub for !DYNAMIC_FTRACE

2024-06-10 18:08:23 -04:00

ftrace.c

ftrace: Add global mutex to serialize trace_parser access

2026-07-24 22:56:43 -04:00

Kconfig

ring-buffer: Add persistent ring buffer invalid-page inject test

2026-05-28 22:40:51 -04:00

kprobe_event_gen_test.c

tracing: Fix wrong return in kprobe_event_gen_test.c

2023-03-19 12:20:48 -04:00

Makefile

Merge tag 'trace-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2026-06-18 20:53:00 -07:00

pid_list.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

pid_list.h

trace/pid_list: optimize pid_list->lock contention

2025-11-13 15:15:54 -05:00

power-traces.c

PM: cpufreq: powernv/tracing: Move powernv_throttle trace event

2025-07-21 16:40:56 -04:00

preemptirq_delay_test.c

kernel: trace: preemptirq_delay_test: use offstack cpu mask

2025-07-08 18:17:38 -04:00

remote_test_events.h

tracing: Add a trace remote module for testing

2026-03-09 12:33:55 -04:00

remote_test.c

tracing: Fix desc in error path for the trace remote test module

2026-05-16 16:11:04 -04:00

rethook.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

ring_buffer_benchmark.c

tracing: Fix typo in ring_buffer_benchmark.c

2025-12-05 15:43:40 -05:00

ring_buffer.c

ring-buffer: Fix reader page read offset for remote buffers

2026-07-29 19:41:14 -04:00

rpm-traces.c

…

simple_ring_buffer.c

tracing: Fix unload_page for simple_ring_buffer init rollback

2026-05-21 08:26:22 -04:00

synth_event_gen_test.c

tracing / synthetic: Disable events after testing in synth_event_gen_test_init()

2023-12-21 10:04:45 -05:00

trace_benchmark.c

tracing: Improve benchmark test performance by using do_div()

2024-05-13 20:00:57 -04:00

trace_benchmark.h

…

trace_boot.c

tracing: Make the backup instance non-reusable

2026-04-02 13:20:38 -04:00

trace_branch.c

tracing/branch: Use pr_warn() instead of printk(KERN_WARNING)

2026-05-21 18:03:08 -04:00

trace_btf.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

trace_btf.h

tracing/probes: Add a function to search a member of a struct/union

2023-08-23 09:40:16 +09:00

trace_clock.c

tracing: Use atomic64_inc_return() in trace_clock_counter()

2024-10-09 19:59:49 -04:00

trace_dynevent.c

tracing: Report wrong dynamic event command

2025-11-10 19:26:14 -05:00

trace_dynevent.h

tracing: probes: Fix a possible race in trace_probe_log APIs

2025-05-13 22:23:34 +09:00

trace_entries.h

tracing: Fix ftrace event field alignments

2026-02-05 09:47:11 -05:00

trace_eprobe.c

tracing/eprobe: Fix exact system name matching in eprobe_dyn_event_match()

2026-07-21 10:23:21 +09:00

trace_event_perf.c

perf/ftrace: Fix WARNING in __unregister_ftrace_function

2026-05-29 11:27:40 -04:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing/filters: Fix false positive match in regex_match_full()

2026-07-29 14:32:11 -04:00

trace_events_hist.c

tracing: Fix use-after-free freeing trigger private data

2026-07-24 18:49:51 -04:00

trace_events_inject.c

tracing: Have format file honor EVENT_FILE_FL_FREED

2024-08-07 18:12:46 -04:00

trace_events_synth.c

tracing/synthetic: Free type string on error path

2026-07-07 13:59:55 -04:00

trace_events_trigger.c

tracing: Delay module ref count for "enable_event" trigger

2026-07-24 18:49:51 -04:00

trace_events_user.c

tracing/user_events: Fix use-after-free in user_event_mm_dup()

2026-07-07 13:59:35 -04:00

trace_events.c

tracing: Check return value of __register_event() in trace_module_add_events()

2026-07-29 14:32:11 -04:00

trace_export.c

tracing: Fix ftrace event field alignments

2026-02-05 09:47:11 -05:00

trace_fprobe.c

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

trace_functions_graph.c

fgraph: Fix thresh_return nosleeptime double-adjust

2026-03-03 22:11:20 -05:00

trace_functions.c

tracing: Fix NULL pointer dereference in func_set_flag()

2026-07-07 10:42:28 -04:00

trace_hwlat.c

tracing: Fix false sharing in hwlat get_sample()

2026-02-10 03:36:39 -05:00

trace_irqsoff.c

tracing: Allow tracer to add more than 32 options

2025-11-04 21:44:00 +09:00

trace_kdb.c

tracing: Allow tracer to add more than 32 options

2025-11-04 21:44:00 +09:00

trace_kprobe_selftest.c

tracing: arm64: Avoid missing-prototype warnings

2023-07-12 12:06:04 -04:00

trace_kprobe_selftest.h

…

trace_kprobe.c

Merge tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2026-04-17 09:43:12 -07:00

trace_mmiotrace.c

tracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions

2026-07-29 14:27:55 -04:00

trace_nop.c

…

trace_osnoise.c

tracing/osnoise: Call synchronize_rcu() when unregistering

2026-07-06 14:56:18 -04:00

trace_output.c

Merge tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2026-04-17 09:43:12 -07:00

trace_output.h

tracing: Allow tracer to add more than 32 options

2025-11-04 21:44:00 +09:00

trace_pid.c

tracing: Move pid filtering into trace_pid.c

2026-02-08 21:01:13 -05:00

trace_preemptirq.c

tracing: Add a no-rcu-check version of trace_##event##_enabled()

2026-07-07 10:42:29 -04:00

trace_printk.c

tracing: move __printf() attribute on __ftrace_vbprintk()

2026-03-23 20:16:45 -04:00

trace_probe_kernel.h

tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

2023-07-14 17:04:58 +09:00

trace_probe_tmpl.h

tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS

2024-12-26 10:50:04 -05:00

trace_probe.c

tracing/probes: Fix potential underflow in LEN_OR_ZERO macro

2026-07-21 10:23:17 +09:00

trace_probe.h

tracing: probes: fix typo in a log message

2026-06-25 08:34:45 +09:00

trace_recursion_record.c

tracing: Switch trace_recursion_record.c code over to use guard()

2026-05-21 18:03:07 -04:00

trace_remote.c

tracing: Propagate errors from remote event bulk updates

2026-07-23 12:30:07 -04:00

trace_sched_switch.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

trace_sched_wakeup.c

tracing: Allow tracer to add more than 32 options

2025-11-04 21:44:00 +09:00

trace_selftest_dynamic.c

…

trace_selftest.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

trace_seq.c

tracing: Add bitmask-list option for human-readable bitmask display

2026-01-26 17:00:50 -05:00

trace_snapshot.c

tracing: Remove duplicate latency_fsnotify() stub

2026-03-31 14:58:39 -04:00

trace_stack.c

Merge tag 'trace-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2025-05-29 21:04:36 -07:00

trace_stat.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

trace_stat.h

…

trace_synth.h

tracing: Allow synthetic events to pass around stacktraces

2023-01-25 10:31:24 -05:00

trace_syscalls.c

tracing: perf: Fix stale head for perf syscall tracing

2026-07-24 22:57:56 -04:00

trace_uprobe.c

tracing: Replace BUG_ON with lockdep_assert_held in uprobe_buffer functions

2026-06-01 23:35:21 +09:00

trace.c

tracing: Fix context switch counter truncation

2026-07-24 13:43:18 -04:00

trace.h

tracing: Fix use-after-free freeing trigger private data

2026-07-24 18:49:51 -04:00

tracing_map.c

tracing: Simplify pages allocation for tracing_map logic

2026-05-21 18:12:10 -04:00

tracing_map.h

tracing: Simplify pages allocation for tracing_map logic

2026-05-21 18:12:10 -04:00

undefsyms_base.c

tracing: Make undefsyms_base.c a first-class citizen

2026-04-22 11:24:41 -04:00