This looks like it affected us as well; knocked out nginx in all
environments after unattended-upgrade upgraded nginx.
```
Start-Date: 2026-06-09 06:39:20
Commandline: /usr/bin/unattended-upgrade
Upgrade: nginx:amd64 (1.24.0-2ubuntu7.9, 1.24.0-2ubuntu7.10),
nginx-common:amd64 (1.24.0-2ubuntu7.9, 1.24.0-2ubuntu7.10)
End-Date: 2026-06-09 06:39:25
```
nginx.conf includes:
```
load_module modules/ngx_http_headers_more_filter_module.so
```
$dpkg -l | grep libnginx
ii libnginx-mod-http-headers-more-filter 1:0.37-2build1
amd64 Set and clear input and output headers for Nginx
```
```
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble
```
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https://bugs.launchpad.net/bugs/2155992
Title:
headers-more dynamic module crash | Signal 11 and 6 Crashes due to
ABI breakage on 1.24.0-2ubuntu7.10
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