GetUserProfileDirectoryW is now documented to always store the size #141405
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The Miri subtree was changed cc @rust-lang/miri |
RalfJung
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May 22, 2025
| @@ -230,16 +230,16 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { | |||
| interp_ok(match directories::UserDirs::new() { | |||
| Some(dirs) => { | |||
| let home = dirs.home_dir(); | |||
| let size_avail = if this.ptr_is_null(size.ptr())? { | |||
| let size_avail = if this.ptr_is_null(buf)? { | |||
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The comment already talked about checking buf, not size... and we unconditionally write size so it being null already triggered UB before.
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Makes sense to me - docs agree that lpcchSize is required:
https://learn.microsoft.com/en-us/windows/win32/api/userenv/nf-userenv-getuserprofiledirectoryw
_In_ HANDLE hToken,
_Out_writes_opt_(*lpcchSize) LPWSTR lpProfileDir,
_Inout_ LPDWORD lpcchSize
(There's no Opt suffix to denote that nullptr is an allowed value for lpcchSize)
Great work as always :)
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Great, thanks! @bors r+ rollup |
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Rollup of 7 pull requests Successful merges: - #138896 (std: fix aliasing bug in UNIX process implementation) - #140832 (aarch64-linux: Default to FramePointer::NonLeaf) - #141065 (Updated std doctests for wasm) - #141369 (Simplify `format_integer_with_underscore_sep`) - #141374 (make shared_helpers exe function work for both cygwin and non-cygwin hosts) - #141398 (chore: fix typos in comment) - #141457 (Update mdbook to 0.4.50) Failed merges: - #141405 (GetUserProfileDirectoryW is now documented to always store the size) r? `@ghost` `@rustbot` modify labels: rollup
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☔ The latest upstream changes (presumably #141437) made this pull request unmergeable. Please resolve the merge conflicts. |
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@bors r=ChrisDenton |
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… r=ChrisDenton GetUserProfileDirectoryW is now documented to always store the size Update to match MicrosoftDocs/sdk-api#1810 Also fix a bug in the Miri implementation while I am starting at that code... r? `@ChrisDenton` Fixes rust-lang#141254
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Rollup of 8 pull requests Successful merges: - #140790 (Enable xray support for Mac) - #141405 (GetUserProfileDirectoryW is now documented to always store the size) - #141413 (Make #[cfg(version)] respect RUSTC_OVERRIDE_VERSION_STRING) - #141427 (Disable `triagebot`'s `glacier` handler) - #141429 (Dont walk into unsafe binders when emiting error for non-structural type match) - #141438 (Do not try to confirm non-dyn compatible method) - #141444 (Improve CONTRIBUTING.md grammar and clarity) - #141446 (Add 2nd Solaris target maintainer) r? `@ghost` `@rustbot` modify labels: rollup
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… r=ChrisDenton GetUserProfileDirectoryW is now documented to always store the size Update to match MicrosoftDocs/sdk-api#1810 Also fix a bug in the Miri implementation while I am starting at that code... r? ``@ChrisDenton`` Fixes rust-lang#141254
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Rollup of 7 pull requests Successful merges: - #141405 (GetUserProfileDirectoryW is now documented to always store the size) - #141427 (Disable `triagebot`'s `glacier` handler) - #141429 (Dont walk into unsafe binders when emiting error for non-structural type match) - #141438 (Do not try to confirm non-dyn compatible method) - #141444 (Improve CONTRIBUTING.md grammar and clarity) - #141446 (Add 2nd Solaris target maintainer) - #141456 (Suggest correct `version("..")` predicate syntax in check-cfg) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of #141405 - RalfJung:GetUserProfileDirectoryW, r=ChrisDenton GetUserProfileDirectoryW is now documented to always store the size Update to match MicrosoftDocs/sdk-api#1810 Also fix a bug in the Miri implementation while I am starting at that code... r? ```@ChrisDenton``` Fixes #141254
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Update to match MicrosoftDocs/sdk-api#1810
Also fix a bug in the Miri implementation while I am starting at that code...
r? @ChrisDenton
Fixes #141254