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Fix process handle leak when launching a job container #2020

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merged 1 commit into from
Feb 8, 2024

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@kevpar kevpar commented Feb 7, 2024

CreateProcess gives us back a handle to the newly created process. Previously, we ignored this handle, which meant it was leaking every time we created a new job container (or anything else that uses internal/exec in the future).

Process handle leaks can be bad as an exited process is left as a "zombie" until all handles to it have closed, continuing to use memory.

Fix this by closing the handle from CreateProcess.

@kevpar kevpar requested a review from a team as a code owner February 7, 2024 16:11
@kevpar kevpar force-pushed the jc-leak branch 2 times, most recently from cd17da8 to 01b53e3 Compare February 7, 2024 16:22
internal/exec/exec.go Outdated Show resolved Hide resolved
CreateProcess gives us back a handle to the newly created process.
Previously, we ignored this handle, which meant it was leaking every
time we created a new job container (or anything else that uses
internal/exec in the future).

Process handle leaks can be bad as an exited process is left as a
"zombie" until all handles to it have closed, continuing to use memory.

Fix this by closing the handle from CreateProcess.

Signed-off-by: Kevin Parsons <[email protected]>
@kevpar kevpar merged commit 9aabef8 into microsoft:main Feb 8, 2024
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3 participants