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authorAlan Donovan <adonovan@google.com>2024-04-23 12:44:54 -0400
committerGopher Robot <gobot@golang.org>2024-05-08 19:10:41 +0000
commit69e75c8581e15328454bb6e2f1dc347f73616b37 (patch)
treef0fabe495e978fb211ef909e4c4b8d8a4085d559 /src/runtime/testdata/testprog
parent4513f1a1c1037574bfd94b8637329246f475a534 (diff)
downloadgo-69e75c8581e15328454bb6e2f1dc347f73616b37.tar.xz
runtime: properly frame panic values in tracebacks
This CL causes the printing of panic values to ensure that all newlines in the output are immediately followed by a tab, so that there is no way for a maliciously crafted panic value to fool a program attempting to parse the traceback into thinking that the panic value is in fact a goroutine stack. See https://github.com/golang/go/issues/64590#issuecomment-1932675696 + release note Updates #64590 Updates #63455 Change-Id: I5142acb777383c0c122779d984e73879567dc627 Reviewed-on: https://go-review.googlesource.com/c/go/+/581215 Auto-Submit: Alan Donovan <adonovan@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com>
Diffstat (limited to 'src/runtime/testdata/testprog')
-rw-r--r--src/runtime/testdata/testprog/crash.go6
-rw-r--r--src/runtime/testdata/testprog/panicprint.go2
2 files changed, 4 insertions, 4 deletions
diff --git a/src/runtime/testdata/testprog/crash.go b/src/runtime/testdata/testprog/crash.go
index 38c8f6a2fa..bdc395f652 100644
--- a/src/runtime/testdata/testprog/crash.go
+++ b/src/runtime/testdata/testprog/crash.go
@@ -77,7 +77,7 @@ func DoublePanic() {
type exampleError struct{}
func (e exampleError) Error() string {
- panic("important error message")
+ panic("important multi-line\nerror message")
}
func ErrorPanic() {
@@ -97,7 +97,7 @@ func DoubleErrorPanic() {
type exampleStringer struct{}
func (s exampleStringer) String() string {
- panic("important stringer message")
+ panic("important multi-line\nstringer message")
}
func StringerPanic() {
@@ -115,7 +115,7 @@ func DoubleStringerPanic() {
}
func StringPanic() {
- panic("important string message")
+ panic("important multi-line\nstring message")
}
func NilPanic() {
diff --git a/src/runtime/testdata/testprog/panicprint.go b/src/runtime/testdata/testprog/panicprint.go
index c8deabe2ab..4ce958ba3d 100644
--- a/src/runtime/testdata/testprog/panicprint.go
+++ b/src/runtime/testdata/testprog/panicprint.go
@@ -31,7 +31,7 @@ func panicCustomComplex128() {
}
func panicCustomString() {
- panic(MyString("Panic"))
+ panic(MyString("Panic\nline two"))
}
func panicCustomBool() {