diff --git a/go b/go
index 0d0822bdcb..76d509e948 160000
--- a/go
+++ b/go
@@ -1 +1 @@
-Subproject commit 0d0822bdcb0537209da6a9211c9f83532f4fae36
+Subproject commit 76d509e948d3a6e663936b7860444799efa82fe0
diff --git a/patches/0002-Add-crypto-backends.patch b/patches/0002-Add-crypto-backends.patch
index 682d3913f6..6c7ac3ca0f 100644
--- a/patches/0002-Add-crypto-backends.patch
+++ b/patches/0002-Add-crypto-backends.patch
@@ -36,6 +36,7 @@ Subject: [PATCH] Add crypto backends
  src/cmd/link/internal/ld/lib.go               |   6 +
  src/cmd/link/link_test.go                     |   8 +
  src/cmd/link/testdata/script/README           |   2 +
+ src/cmd/nm/testdata/script/README             |   2 +
  src/crypto/aes/aes.go                         |   6 +-
  src/crypto/aes/aes_test.go                    |   2 +-
  src/crypto/boring/boring.go                   |   4 +-
@@ -137,7 +138,7 @@ Subject: [PATCH] Add crypto backends
  src/os/exec/exec_test.go                      |   9 +
  src/runtime/runtime_boring.go                 |   5 +
  src/syscall/syscall_windows.go                |   3 +
- 133 files changed, 2509 insertions(+), 378 deletions(-)
+ 134 files changed, 2511 insertions(+), 378 deletions(-)
  create mode 100644 src/cmd/go/systemcrypto_test.go
  create mode 100644 src/crypto/dsa/boring.go
  create mode 100644 src/crypto/dsa/notboring.go
@@ -433,10 +434,10 @@ index 43ac003c7907c7..4daeb1a5ced0eb 100644
 +	return enabled
 +}
 diff --git a/src/cmd/go/alldocs.go b/src/cmd/go/alldocs.go
-index 74cafe9613917d..31ce076273aba2 100644
+index 44cec1ae79e710..a03f2324ba36bc 100644
 --- a/src/cmd/go/alldocs.go
 +++ b/src/cmd/go/alldocs.go
-@@ -2616,6 +2616,9 @@
+@@ -2620,6 +2620,9 @@
  //		mentioned will be considered insecure by 'go get'.
  //		Because the variable is defined by Git, the default value cannot
  //		be set using 'go env -w'.
@@ -589,7 +590,7 @@ index 3d72c368b088a2..4fe28740a6e3c2 100644
  				env[i].Changed = true
  			}
 diff --git a/src/cmd/go/internal/help/helpdoc.go b/src/cmd/go/internal/help/helpdoc.go
-index 4f76f7f9c1fc68..783d11609c0bf4 100644
+index b305457a23d104..5154aa0be0007c 100644
 --- a/src/cmd/go/internal/help/helpdoc.go
 +++ b/src/cmd/go/internal/help/helpdoc.go
 @@ -755,6 +755,9 @@ Special-purpose environment variables:
@@ -1302,6 +1303,19 @@ index 9ec997a138f0f2..09c4e7955ec162 100644
  [verbose]
  	testing.Verbose()
  
+diff --git a/src/cmd/nm/testdata/script/README b/src/cmd/nm/testdata/script/README
+index 9ec997a138f0f2..09c4e7955ec162 100644
+--- a/src/cmd/nm/testdata/script/README
++++ b/src/cmd/nm/testdata/script/README
+@@ -281,6 +281,8 @@ The available conditions are:
+ 	testing.Short()
+ [symlink]
+ 	testenv.HasSymlink()
++[systemcrypto]
++	system crypto is enabled
+ [verbose]
+ 	testing.Verbose()
+ 
 diff --git a/src/crypto/aes/aes.go b/src/crypto/aes/aes.go
 index 22ea8819ed239a..d918b8d57c5801 100644
 --- a/src/crypto/aes/aes.go
@@ -5881,7 +5895,7 @@ index f55150697d96f6..b4a89941749d99 100644
  
  type clientHandshakeStateTLS13 struct {
 diff --git a/src/crypto/tls/handshake_server.go b/src/crypto/tls/handshake_server.go
-index a4544a13051f51..f889d38b5e922c 100644
+index b62feef1a0d2a3..a51f06da2a4928 100644
 --- a/src/crypto/tls/handshake_server.go
 +++ b/src/crypto/tls/handshake_server.go
 @@ -64,7 +64,20 @@ func (c *Conn) serverHandshake(ctx context.Context) error {
@@ -6128,7 +6142,7 @@ index 00000000000000..ffb835ce34a2f7
 +	}
 +}
 diff --git a/src/go/build/deps_test.go b/src/go/build/deps_test.go
-index a71759adcb7363..ab31931e34b495 100644
+index 67627cdb93ff22..3a7fc5413e2696 100644
 --- a/src/go/build/deps_test.go
 +++ b/src/go/build/deps_test.go
 @@ -372,8 +372,10 @@ var depsRules = `
diff --git a/patches/0012-Fix-PE-BSS-symbol-classification.patch b/patches/0012-Fix-PE-BSS-symbol-classification.patch
new file mode 100644
index 0000000000..8c7d750691
--- /dev/null
+++ b/patches/0012-Fix-PE-BSS-symbol-classification.patch
@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: qmuntal <quimmuntal@gmail.com>
+Date: Mon, 29 Jun 2026 16:43:27 +0200
+Subject: [PATCH] cmd/internal/objfile: fix PE BSS symbol classification
+
+The PE symbol reader uses runtime.bss to distinguish initialized data from BSS
+when Windows internal linking places BSS at the end of a writable data section.
+
+For externally linked PE files, symbol values are section-relative, so comparing
+a symbol in one section against runtime.bss from another section can misclassify
+initialized data such as runtime.noptrdata as BSS.
+
+Remember the section containing runtime.bss and only apply the BSS-boundary
+heuristic to symbols from that same section.
+---
+ src/cmd/internal/objfile/pe.go | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/cmd/internal/objfile/pe.go b/src/cmd/internal/objfile/pe.go
+index ca8add70ba..7bbfaa54d1 100644
+--- a/src/cmd/internal/objfile/pe.go
++++ b/src/cmd/internal/objfile/pe.go
+@@ -44,9 +44,11 @@ func (f *peFile) symbols() ([]Sym, error) {
+ 	// That is, there can be BSS symbols at the end of the page
+ 	// that holds the last data symbols.
+ 	var bssAddr uint32
++	var bssSectionNumber int16
+ 	for _, s := range f.pe.Symbols {
+ 		if s.Name == "runtime.bss" {
+ 			bssAddr = s.Value
++			bssSectionNumber = s.SectionNumber
+ 			break
+ 		}
+ 	}
+@@ -84,7 +86,7 @@ func (f *peFile) symbols() ([]Sym, error) {
+ 			case ch&data != 0:
+ 				if ch&permW == 0 {
+ 					sym.Code = 'R'
+-				} else if bssAddr > 0 && s.Value >= bssAddr {
++				} else if bssSectionNumber == s.SectionNumber && bssAddr > 0 && s.Value >= bssAddr {
+ 					// Past runtime.bss is BSS.
+ 					sym.Code = 'B'
+ 				} else if s.Value >= sect.Size {
+-- 
+2.54.0.windows.1
+