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linux-next/kernel/trace
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Oleg Nesterov 5fe6e308ab bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() 
If bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the
error_free label and frees the array of bpf_uprobe's without calling
bpf_uprobe_unregister().

This leaks bpf_uprobe->uprobe and worse, this frees bpf_uprobe->consumer
without removing it from the uprobe->consumers list.

Fixes: 89ae89f53d20 ("bpf: Add multi uprobe link")
Closes: https://lore.kernel.org/all/000000000000382d39061f59f2dd@google.com/
Reported-by: syzbot+f7a1c2c2711e4a780f19@syzkaller.appspotmail.com
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: syzbot+f7a1c2c2711e4a780f19@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240813152524.GA7292@redhat.com
2024-09-05 16:56:13 +02:00
..
rv
rv: Update rv_en(dis)able_monitor doc to match kernel-doc
2024-05-21 19:03:35 -04:00
blktrace.c
blktrace: convert strncpy() to strscpy_pad()
2024-04-25 21:07:08 -07:00
bpf_trace.c
bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()
2024-09-05 16:56:13 +02:00
bpf_trace.h
tracing/treewide: Remove second parameter of __assign_str()
2024-05-22 20:14:47 -04:00
error_report-traces.c
tracing: add error_report_end trace point
2021-02-26 09:41:02 -08:00
fgraph.c
function_graph: Fix the ret_stack used by ftrace_graph_ret_addr()
2024-08-07 20:20:30 -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
tracing: Fix wrong return in kprobe_event_gen_test.c
2023-03-19 12:20:48 -04:00
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
tracing: Create a sparse bitmask for pid filtering
2021-10-05 17:38:45 -04:00
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: Remove unused function ring_buffer_nr_pages()
2024-08-07 20:26:44 -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
tracing: Add numeric delta time to the trace event benchmark
2022-09-26 13:01:09 -04:00
trace_boot.c
tracing: Allow creating instances with specified system events
2023-12-18 23:14:16 -05:00
trace_branch.c
tracing: Merge irqflags + preempt counter.
2021-02-02 17:02:06 -05:00
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
tracing: Do no increment trace_clock_global() by one
2021-06-18 09:10:00 -04:00
trace_dynevent.c
tracing: Free buffers when a used dynamic event is removed
2022-11-23 19:07:12 -05:00
trace_dynevent.h
tracing: Add DYNAMIC flag for dynamic events
2021-08-18 18:10:32 -04:00
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
tracing/perf: Use strndup_user instead of kzalloc/strncpy_from_user
2022-11-23 19:08:31 -05:00
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/probes: support '%pd' type for print struct dentry's name
2024-05-01 23:18:47 +09:00
trace_functions_graph.c
function_graph: Move graph notrace bit to shadow stack global var
2024-06-04 10:37:44 -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: Remove extra space at the end of hwlat_detector/mode
2023-09-01 21:00:00 -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
kdb: Rename members of struct kdbtab_t
2021-07-27 17:05:06 +01:00
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
tracing/kprobes: Fix build error when find_module() is not available
2024-07-10 09:47:00 +09:00
trace_mmiotrace.c
tracing: Remove definition of DEBUG in trace_mmiotrace.c
2021-02-02 17:02:07 -05:00
trace_nop.c
…
trace_osnoise.c
rtla/osnoise: set the default threshold to 1us
2024-07-01 18:54:31 -04:00
trace_output.c
tracing: Remove precision vsnprintf() check from print event
2024-03-06 13:26:26 -05:00
trace_output.h
tracing: Add "fields" option to show raw trace event fields
2023-03-29 06:52:08 -04:00
trace_preemptirq.c
cpuidle: tracing, preempt: Squash _rcuidle tracing
2023-01-31 15:01:46 +01:00
trace_printk.c
tracing: Disable "other" permission bits in the tracefs files
2021-10-08 18:08:43 -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/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
tracing: Use trace_create_file() to simplify creation of tracefs entries
2022-05-26 21:12:52 -04:00
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
function_graph: Move set_graph_function tests to shadow stack global var
2024-06-04 10:37:35 -04:00
trace_selftest_dynamic.c
…
trace_selftest.c
fgraph: Use str_plural() in test_graph_storage_single()
2024-07-01 19:57:51 -04:00
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
tracing: Disable "other" permission bits in the tracefs files
2021-10-08 18:08:43 -04:00
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
bpf: Change syscall_nr type to int in struct syscall_tp_t
2023-10-13 12:39:36 -07:00
trace_uprobe.c
uprobes: make uprobe_register() return struct uprobe *
2024-08-02 11:30:31 +02:00
trace.c
tracing: Return from tracing_buffers_read() if the file has been closed
2024-08-09 12:59:35 -04:00
trace.h
tracing: Have format file honor EVENT_FILE_FL_FREED
2024-08-07 18:12:46 -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