fix(sidecar): AWS lambda also can return EACCESS for shm_open

bwoebi · bwoebi · commit eaf030a43d0b · 2026-01-13T19:52:07.000+01:00
Depending on the actual user the process runs under.
Also downgrade tempfile to 3.13, when it did not pull in getrandom 0.3.
getrandom 0.3 currently breaks our PHP 7.0 alpine targets, which don't support getrandom yet. We'll consider a path forward later, but as a shortterm mitigation, this fixes execution.

Signed-off-by: Bob Weinand &lt;bob.weinand@datadoghq.com&gt;
diff --git a/datadog-ipc/src/platform/unix/mem_handle.rs b/datadog-ipc/src/platform/unix/mem_handle.rs
@@ -35,7 +35,7 @@ fn shm_open<P: ?Sized + NixPath>(
 ) -> nix::Result<std::os::unix::io::OwnedFd> {
     mman::shm_open(name, flag, mode).or_else(|e| {
         // This can happen on AWS lambda
-        if e == Errno::ENOSYS || e == Errno::ENOTSUP || e == Errno::ENOENT {
+        if e == Errno::ENOSYS || e == Errno::ENOTSUP || e == Errno::ENOENT || e == Errno::EACCES {
             // The path has a leading slash
             let path = fallback_path(name)?;
             open(path.as_c_str(), flag, mode)
diff --git a/libdd-crashtracker/Cargo.toml b/libdd-crashtracker/Cargo.toml
@@ -72,7 +72,7 @@ windows = { version = "0.59.0", features = ["Win32_System_Diagnostics_Debug", "W
 [dev-dependencies]
 criterion = { version = "0.5.1" }
 goblin = "0.9.3"
-tempfile = { version = "3.23" }
+tempfile = { version = "3.13" }
 
 [build-dependencies]
 # If we use a newer version of cc, CI fails on alpine.
