[vim/vim] Fix buf_check_timestamp heap UAF (PR #19317)

Sean Dewar

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8:09 AM (12 hours ago) 8:09 AM

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Problem: heap UAF if autocommands from reloading a file changed outside of Vim wipe its buffer.

Solution: validate the bufref after buf_reload.

You can view, comment on, or merge this pull request online at:

https://github.com/vim/vim/pull/19317

Commit Summary

63282bd Fix buf_check_timestamp heap UAF

File Changes

(2 files)

M src/fileio.c (2)
M src/testdir/test_filechanged.vim (15)

Patch Links:

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Sean Dewar

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8:11 AM (12 hours ago) 8:11 AM

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@seandewar pushed 1 commit.

7966571 Fix buf_check_timestamp heap UAF

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Sean Dewar

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8:33 AM (11 hours ago) 8:33 AM

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97ca062 Fix buf_check_timestamp heap UAF

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Sean Dewar

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8:34 AM (11 hours ago) 8:34 AM

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180e707 Fix buf_check_timestamp heap UAF

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Sean Dewar

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8:52 AM (11 hours ago) 8:52 AM

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52d6911 Fix buf_check_timestamp heap UAF

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Sean Dewar

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9:18 AM (11 hours ago) 9:18 AM

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58f6ae1 Fix buf_check_timestamp heap UAF

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