Nixpkgs version

• Unstable (25.11)

Describe the bug

       > 28/28 dbus-broker:unit / D-Bus Socket Options                 FAIL            0.13s   killed by signal 6 SIGABRT
       > >>> MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 MESON_TEST_ITERATION=1 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 MALLOC_PERTURB_=120 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 /build/source/build/src/test-sockopt
       >  ✀
       > stderr:
       > test-sockopt: ../src/util/test-sockopt.c:85: test_peerpidfd_client: Assertion `false && "r == SOCKOPT_E_REAPED"' failed.
       > test-sockopt: ../src/util/test-sockopt.c:23: wait_and_verify: Assertion `false && "WIFEXITED(status)"' failed.
       >

Steps to reproduce

nix build github:nixos/nixpkgs/126a27a4a0b431eb354fe9692b8f4198f18f97e2#dbus-broker -L --rebuild

Expected behaviour

package should build successfully

Additional context

It's likely this is a failure due to a kernel change. hydra can build this successfully.

Applying the fix for a recent tailscale failure due to kernel changes does not help, so it's unrelated to #438765

After downgrading one of my builders to the LTS kernel (6.12) it builds successfully.

System metadata

• system: "x86_64-linux"
• host os: Linux 6.16.1, NixOS, 25.11 (Xantusia), 25.11
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.30.2
• nixpkgs: /nix/store/m35r8yr6dn4yxabfq4z9iqp5d8w1aa7w-source

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