FATAL: ThreadSanitizer: unexpected memory mapping 0x583447b8d000-0x58344d4e7000

[kyessenov]

Is this the right place to submit this?

• This is not a security vulnerability or a crashing bug
• This is not a question about how to use Istio

Bug Description

CI fails on Tsan, correlated with node upgrades. TSan build likely needs to be upgraded to match the kernel.

Version

all

Additional Information

No response

[kyessenov]

Likely cause google/sanitizers#1716.
Need clang 18 as a true fix or disable ASLR temporarily.

[howardjohn]

Triggered by node upgrade from v1.26.14-gke.1006000 to v1.29.1-gke.1589020, kernel 5.15.146+ -> 6.1.58+.

We are on LLVM 14 mirroring upstream (https://github.com/envoyproxy/envoy-build-tools/blob/c41199833f85ea06a88f1dfa3ac4ebef179c9bdd/docker/linux/ubuntu/Dockerfile#L24)

[howardjohn]

Temporary workaround is istio/test-infra#5352, @kyessenov is looking into upgrading LLVM.

Also plausible is vm.mmap_rnd_bits.

This might impact older release branches, cc @istio/release-managers