commit 08e54827f6706016347e1e4f4866b84126842b20
author Florian Zenker <floriank@google.com> Tue Nov 25 15:13:51 2025 +0000
committer Michael Stapelberg <stapelberg@google.com> Tue Nov 25 07:35:26 2025 -0800
tree 754258e0f674508485af583a98dbb1fd3fba5034
parent 4f4f1c6feacd5e05a726e4fd415d0462cab0bebb

unix: fix out of bounds memory access in tests

sockaddrIUCVToAny used the wrong size to for copying to RawSockaddrAny.
We found this by running the test with ASAN.

Change-Id: I2a2ec28f9bd55aeba4ddcb4243ad61ec010087df
Reviewed-on: https://go-review.googlesource.com/c/sys/+/724280
Reviewed-by: Michael Stapelberg <stapelberg@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

unix/syscall_internal_linux_test.go

diff --git a/unix/syscall_internal_linux_test.go b/unix/syscall_internal_linux_test.go
index e8b7491..8798d1b 100644
--- a/unix/syscall_internal_linux_test.go
+++ b/unix/syscall_internal_linux_test.go
@@ -909,7 +909,7 @@
 	var out RawSockaddrAny
 	copy(
 		(*(*[SizeofSockaddrAny]byte)(unsafe.Pointer(&out)))[:],
-		(*(*[SizeofSockaddrUnix]byte)(unsafe.Pointer(&in)))[:],
+		(*(*[SizeofSockaddrIUCV]byte)(unsafe.Pointer(&in)))[:],
 	)
 	return &out
 }