Daniel Borkmann 6fad274f06 bpf: Add MEM_WRITE attribute ... Add a MEM_WRITE attribute for BPF helper functions which can be used in bpf_func_proto to annotate an argument type in order to let the verifier know that the helper writes into the memory passed as an argument. In the past MEM_UNINIT has been (ab)used for this function, but the latter merely tells the verifier that the passed memory can be uninitialized. There have been bugs with overloading the latter but aside from that there are also cases where the passed memory is read + written which currently cannot be expressed, see also 4b3786a6c5 ("bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error"). Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241021152809.33343-1-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2024-10-22 15:42:56 -07:00
..
rv	[tree-wide] finally take no_llseek out	2024-09-27 08:18:43 -07:00
blktrace.c	blktrace: convert strncpy() to strscpy_pad()	2024-04-25 21:07:08 -07:00
bpf_trace.c	bpf: Add MEM_WRITE attribute	2024-10-22 15:42:56 -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: Allocate ret_stack_list with proper size	2024-10-18 21:57:20 -04:00
fprobe.c	fprobe: Fix to allocate entry_data_size buffer with rethook instances	2024-03-01 09:18:24 +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	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
Kconfig	tracing: Build event generation tests only as modules	2024-06-12 08:43:12 +09:00
kprobe_event_gen_test.c
Makefile	tracing/probes: Move finding func-proto API and getting func-param API to trace_btf	2023-08-23 09:39:45 +09:00
pid_list.c	trace/pid_list: Change gfp flags in pid_list_fill_irq()	2024-07-15 15:07:14 -04:00
pid_list.h
power-traces.c
preemptirq_delay_test.c	minmax: make generic MIN() and MAX() macros available everywhere	2024-07-28 15:49:18 -07:00
rethook.c	rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()	2024-05-01 23:18:48 +09:00
ring_buffer_benchmark.c	ring-buffer: Read and write to ring buffers with custom sub buffer size	2023-12-20 07:54:56 -05:00
ring_buffer.c	ring-buffer: Fix reader locking when changing the sub buffer order	2024-10-15 11:18:51 -04:00
rpm-traces.c
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: Allow creating instances with specified system events	2023-12-18 23:14:16 -05:00
trace_branch.c
trace_btf.c	tracing/probes: Fix to search structure fields correctly	2024-02-17 21:25:42 +09:00
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
trace_dynevent.c
trace_dynevent.h
trace_entries.h	tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure	2023-07-30 18:11:44 -04:00
trace_eprobe.c	tracing/probes: Support $argN in return probe (kprobe and fprobe)	2024-03-07 00:27:34 +09:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
trace_events_hist.c	tracing: Have format file honor EVENT_FILE_FL_FREED	2024-08-07 18:12:46 -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: Fix trace_string() return value	2024-02-15 11:40:01 -05:00
trace_events_trigger.c	tracing: Have format file honor EVENT_FILE_FL_FREED	2024-08-07 18:12:46 -04:00
trace_events_user.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
trace_events.c	tracing: Use refcount for trace_event_file reference counter	2024-08-07 18:12:46 -04:00
trace_export.c	tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure	2023-07-30 18:11:44 -04:00
trace_fprobe.c	tracing/fprobe: Support raw tracepoints on future loaded modules	2024-09-25 23:23:44 +09:00
trace_functions_graph.c	tracing/fgraph: Have fgraph handle previous boot function addresses	2024-08-15 08:35:48 -04:00
trace_functions.c	ftrace: Hide one more entry in stack trace when ftrace_pid is enabled	2024-06-06 15:22:18 -04:00
trace_hwlat.c	tracing/hwlat: Fix a race during cpuhp processing	2024-10-03 16:43:23 -04:00
trace_irqsoff.c	function_graph: Move set_graph_function tests to shadow stack global var	2024-06-04 10:37:35 -04:00
trace_kdb.c
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	tracing/kprobes: Fix build error when find_module() is not available	2024-07-10 09:47:00 +09:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c	tracing/timerlat: Fix a race during cpuhp processing	2024-10-03 16:43:22 -04:00
trace_output.c	tracing: Have trace_printk not use binary prints if boot buffer	2024-08-26 13:54:08 -04:00
trace_output.h
trace_preemptirq.c
trace_printk.c
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/probes: Support $argN in return probe (kprobe and fprobe)	2024-03-07 00:27:34 +09:00
trace_probe.c	tracing/probes: fix error check in parse_btf_field()	2024-05-27 21:32:35 +09:00
trace_probe.h	tracing/probes: support '%pd' type for print struct dentry's name	2024-05-01 23:18:47 +09:00
trace_recursion_record.c
trace_sched_switch.c	tracing: Move saved_cmdline code into trace_sched_switch.c	2024-03-17 07:58:53 -04:00
trace_sched_wakeup.c	sched/rt: Rename realtime_{prio, task}() to rt_or_dl_{prio, task}()	2024-08-07 18:32:38 +02:00
trace_selftest_dynamic.c
trace_selftest.c	sched/fair: Fix external p->on_rq users	2024-10-14 09:14:35 +02:00
trace_seq.c	trace_seq: Increase the buffer size to almost two pages	2023-12-18 23:14:16 -05:00
trace_stack.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
trace_stat.c
trace_stat.h
trace_synth.h
trace_syscalls.c	bpf: Use fake pt_regs when doing bpf syscall tracepoint tracing	2024-09-11 13:27:27 -07:00
trace_uprobe.c	Probes updates for v6.12:	2024-09-26 08:55:36 -07:00
trace.c	ring-buffer: Fix refcount setting of boot mapped buffers	2024-10-14 14:30:59 -04:00
trace.h	tracing: Add option to set an instance to be the trace_printk destination	2024-08-26 13:54:08 -04:00
tracing_map.c	tracing: Fix overflow in get_free_elt()	2024-08-07 20:23:12 -04:00
tracing_map.h	tracing: Remove unused extern declaration tracing_map_set_field_descr()	2023-07-23 11:08:14 -04:00