Repository navigation
fix potential invalid mmap call and uninitialized file size - #4559
Open
richardsonnick wants to merge 3 commits into
Open
richardsonnick wants to merge 3 commits into
richardsonnick wants to merge 3 commits into
Conversation
Fixes a warning from Clang 21 (unix.StdCLibraryFunctions) where mmap() could be called with a length of 0 if the dictionary file is empty. Mapping a zero-length range is undefined behavior under POSIX. - Added guard for zero-length dictionary files.
terrelln
requested changes
Feb 27, 2026
terrelln
left a comment
terrelln
left a comment
Contributor
There was a problem hiding this comment.
One minor change, otherwise looks good. Thanks for the PR!
richardsonnick
force-pushed
the
fix-zero-filesize-mmap
branch
from
March 12, 2026 18:58
1fa208a to
01c8f60
Compare
This branch has not been deployed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fixes a warning from Clang 21 (unix.StdCLibraryFunctions) where mmap() could be called with a length of 0 if the dictionary file is empty. Mapping a zero-length range is undefined behavior under POSIX.