unix: update to Linux kernel 6.13

Change-Id: I4c49a78bd2abf2ac9e4d461680c92ae65be14544
GitHub-Last-Rev: 888e68d
GitHub-Pull-Request: #243
Reviewed-on: https://go-review.googlesource.com/c/sys/+/642199
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>

Author: mauri870

unix/linux/Dockerfile

@@ -15,8 +15,8 @@ RUN apt-get update && apt-get install -y  --no-install-recommends \
 # Get the git sources. If not cached, this takes O(5 minutes).
 WORKDIR /git
 RUN git config --global advice.detachedHead false
-# Linux Kernel: Released 17 Nov 2024
-RUN git clone --branch v6.12 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
+# Linux Kernel: Released 20 Jan 2025
+RUN git clone --branch v6.13 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
 # GNU C library: Released 21 July 2024
 RUN git clone --branch release/2.40/master --depth 1 https://sourceware.org/git/glibc.git
 

unix/linux/types.go

@@ -6100,3 +6100,6 @@ const (
 )
 
 type SockDiagReq C.struct_sock_diag_req
+
+// Removed in Linux 6.13, kept for backwards compatibility.
+const RTM_NEWNVLAN = 0x70