avoid creating unnecessary reference in Windows Env iterator #70479
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@bors r+ rollup |
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⌛ Testing commit 2a1e61e with merge 436b6e93f2f9d171a1dcbec015ea57e3a5023b05... |
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Rollup of 4 pull requests Successful merges: - rust-lang#70479 (avoid creating unnecessary reference in Windows Env iterator) - rust-lang#70546 (Polonius: update to 0.12.1, fix more move errors false positives, update test expectations) - rust-lang#70559 (fix BTreeMap test compilation with Miri) - rust-lang#70567 (Fix broken link in README) Failed merges: r? @ghost
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A small fix was made to libstd in rust-lang/rust#70479 (back in March). (Miri reported UB due to Stacked Borrows violation - [link to Miri error log](rust-lang#1225 (comment))) Thank you for reviewing 👍
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Add a case to list of 'StackedBorrows violations' A small fix was made to libstd in rust-lang/rust#70479 (back in March). (Miri reported UB due to Stacked Borrows violation - [link to Miri error log](#1225 (comment))) Thank you for reviewing 👍
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Discovered in rust-lang/miri#1225: the Windows
Enviterator violates Stacked Borrows by creating an&u16, turning it into a raw pointer, and then accessing memory outside the range of that type.There is no need to create a reference here in the first place, so the fix is trivial.
Cc @JOE1994
Cc rust-lang/unsafe-code-guidelines#134