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authorAlexei Starovoitov <ast@kernel.org>2024-10-24 18:45:59 -0700
committerAlexei Starovoitov <ast@kernel.org>2024-10-24 18:47:28 -0700
commitbfa7b5c98be4bdcf8aaa4e5ca0b91359ea28c05c (patch)
tree751b70005cb6641c42e90191f35dac731459a6ec /kernel/trace/trace_fprobe.c
parentMerge branch 'share-user-memory-to-bpf-program-through-task-storage-map' (diff)
parentMerge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (diff)
downloadlinux-bfa7b5c98be4bdcf8aaa4e5ca0b91359ea28c05c.tar.gz
linux-bfa7b5c98be4bdcf8aaa4e5ca0b91359ea28c05c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Cross-merge bpf fixes after downstream PR. No conflicts. Adjacent changes in: include/linux/bpf.h include/uapi/linux/bpf.h kernel/bpf/btf.c kernel/bpf/helpers.c kernel/bpf/syscall.c kernel/bpf/verifier.c kernel/trace/bpf_trace.c mm/slab_common.c tools/include/uapi/linux/bpf.h tools/testing/selftests/bpf/Makefile Link: https://lore.kernel.org/all/20241024215724.60017-1-daniel@iogearbox.net/ Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/trace/trace_fprobe.c')
-rw-r--r--kernel/trace/trace_fprobe.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/trace_fprobe.c b/kernel/trace/trace_fprobe.c
index a079abd8955b..c62d1629cffe 100644
--- a/kernel/trace/trace_fprobe.c
+++ b/kernel/trace/trace_fprobe.c
@@ -1187,6 +1187,10 @@ static int __trace_fprobe_create(int argc, const char *argv[])
argc = new_argc;
argv = new_argv;
}
+ if (argc > MAX_TRACE_ARGS) {
+ ret = -E2BIG;
+ goto out;
+ }
ret = traceprobe_expand_dentry_args(argc, argv, &dbuf);
if (ret)
@@ -1203,7 +1207,7 @@ static int __trace_fprobe_create(int argc, const char *argv[])
}
/* parse arguments */
- for (i = 0; i < argc && i < MAX_TRACE_ARGS; i++) {
+ for (i = 0; i < argc; i++) {
trace_probe_log_set_index(i + 2);
ctx.offset = 0;
ret = traceprobe_parse_probe_arg(&tf->tp, i, argv[i], &ctx);