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fix: Drop guard was deallocating with the incorrect size #120145
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cuviper
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Jan 19, 2024
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InPlaceDstBufDrop holds onto the allocation before the shrinking happens which means it must deallocate the destination elements but the source allocation.
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@bors r+ |
GuillaumeGomez
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Jan 20, 2024
…uviper fix: Drop guard was deallocating with the incorrect size InPlaceDstBufDrop holds onto the allocation before the shrinking happens which means it must deallocate the destination elements but the source allocation. Thanks `@cuviper` for spotting this.
matthiaskrgr
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Jan 21, 2024
…uviper fix: Drop guard was deallocating with the incorrect size InPlaceDstBufDrop holds onto the allocation before the shrinking happens which means it must deallocate the destination elements but the source allocation. Thanks ``@cuviper`` for spotting this.
This was referenced Jan 21, 2024
bors
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120005 (Update Readme) - rust-lang#120045 (Un-hide `iter::repeat_n`) - rust-lang#120128 (Make stable_mir::with_tables sound) - rust-lang#120145 (fix: Drop guard was deallocating with the incorrect size) - rust-lang#120158 (`rustc_mir_dataflow`: Restore removed exports) - rust-lang#120167 (Capture the rationale for `-Zallow-features=` in bootstrap.py) - rust-lang#120174 (Warn users about limited review for tier 2 and 3 code) - rust-lang#120180 (Document some alternatives to `Vec::split_off`) Failed merges: - rust-lang#120171 (Fix assume and assert in jump threading) r? `@ghost` `@rustbot` modify labels: rollup
bors
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120005 (Update Readme) - rust-lang#120045 (Un-hide `iter::repeat_n`) - rust-lang#120128 (Make stable_mir::with_tables sound) - rust-lang#120145 (fix: Drop guard was deallocating with the incorrect size) - rust-lang#120158 (`rustc_mir_dataflow`: Restore removed exports) - rust-lang#120167 (Capture the rationale for `-Zallow-features=` in bootstrap.py) - rust-lang#120174 (Warn users about limited review for tier 2 and 3 code) - rust-lang#120180 (Document some alternatives to `Vec::split_off`) Failed merges: - rust-lang#120171 (Fix assume and assert in jump threading) r? `@ghost` `@rustbot` modify labels: rollup
bors
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120005 (Update Readme) - rust-lang#120045 (Un-hide `iter::repeat_n`) - rust-lang#120128 (Make stable_mir::with_tables sound) - rust-lang#120145 (fix: Drop guard was deallocating with the incorrect size) - rust-lang#120158 (`rustc_mir_dataflow`: Restore removed exports) - rust-lang#120167 (Capture the rationale for `-Zallow-features=` in bootstrap.py) - rust-lang#120174 (Warn users about limited review for tier 2 and 3 code) - rust-lang#120180 (Document some alternatives to `Vec::split_off`) Failed merges: - rust-lang#120171 (Fix assume and assert in jump threading) r? `@ghost` `@rustbot` modify labels: rollup
bors
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Jan 21, 2024
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120005 (Update Readme) - rust-lang#120045 (Un-hide `iter::repeat_n`) - rust-lang#120128 (Make stable_mir::with_tables sound) - rust-lang#120145 (fix: Drop guard was deallocating with the incorrect size) - rust-lang#120158 (`rustc_mir_dataflow`: Restore removed exports) - rust-lang#120167 (Capture the rationale for `-Zallow-features=` in bootstrap.py) - rust-lang#120174 (Warn users about limited review for tier 2 and 3 code) - rust-lang#120180 (Document some alternatives to `Vec::split_off`) Failed merges: - rust-lang#120171 (Fix assume and assert in jump threading) r? `@ghost` `@rustbot` modify labels: rollup
bors
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Jan 22, 2024
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120005 (Update Readme) - rust-lang#120045 (Un-hide `iter::repeat_n`) - rust-lang#120128 (Make stable_mir::with_tables sound) - rust-lang#120145 (fix: Drop guard was deallocating with the incorrect size) - rust-lang#120158 (`rustc_mir_dataflow`: Restore removed exports) - rust-lang#120167 (Capture the rationale for `-Zallow-features=` in bootstrap.py) - rust-lang#120174 (Warn users about limited review for tier 2 and 3 code) - rust-lang#120180 (Document some alternatives to `Vec::split_off`) Failed merges: - rust-lang#120171 (Fix assume and assert in jump threading) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
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Jan 22, 2024
Rollup merge of rust-lang#120145 - the8472:fix-inplace-dest-drop, r=cuviper fix: Drop guard was deallocating with the incorrect size InPlaceDstBufDrop holds onto the allocation before the shrinking happens which means it must deallocate the destination elements but the source allocation. Thanks `@cuviper` for spotting this.
Backport approved here: https://rust-lang.zulipchat.com/#narrow/stream/259402-t-libs.2Fmeetings/topic/Meeting.202024-01-24/near/417677374 @rustbot label +beta-accepted |
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Jan 27, 2024
[beta] backports - Remove alignment-changing in-place collect rust-lang#120116 - fix: Drop guard was deallocating with the incorrect size rust-lang#120145 r? ghost
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beta-accepted
Accepted for backporting to the compiler in the beta channel.
I-unsound
Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness
S-waiting-on-bors
Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
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InPlaceDstBufDrop holds onto the allocation before the shrinking happens which means it must deallocate the destination elements but the source allocation.
Thanks @cuviper for spotting this.