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Fix #2581, Adding bytes read check #2584

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merged 2 commits into from
Aug 2, 2024

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tandharia
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@tandharia tandharia commented Jul 22, 2024

Checklist (Please check before submitting)

Describe the contribution

Fixes #2581

  • Checks the return value of the read operation done in cfe_fs_api.c to make sure the correct number of bytes was read.
  • Handles cases where the read operation fails or reads fewer bytes than expected, preventing the use of uninitialized or partially initialized data.

Testing performed

Added a unit test to simulate scenario where the file read operation reads fewer bytes than expected.

Expected behavior changes

When a read operation fails, the system now exits the function early, preventing potential undefined behavior.

System(s) tested on

OS: Ubuntu 18.04

Contributor Info - All information REQUIRED for consideration of pull request

Tvisha Andharia - GSFC 582 intern

@dzbaker
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dzbaker commented Aug 1, 2024

CCB 1 Aug 2024: Approved pending workflow run.

@dzbaker dzbaker added CCB:Approved Indicates code review and approval by community CCB and removed CCB:Provisionally-Approved labels Aug 1, 2024
dzbaker added a commit to nasa/cFS that referenced this pull request Aug 2, 2024
*Combines:*

cFE equuleus-rc1+dev183

**Includes:**

*cFE*
- nasa/cFE#2579
- nasa/cFE#2565
- nasa/cFE#2584
- nasa/cFE#2585
- nasa/cFE#2586
- nasa/cFE#2326

Co-authored by: Tvisha Andharia <[email protected]>
Co-authored by: Anh Van <[email protected]>
Co-authored by: Joseph Hickey <[email protected]>
Co-authored by: Avi Weiss <[email protected]>
@dzbaker dzbaker merged commit 8244c18 into nasa:main Aug 2, 2024
21 checks passed
dzbaker added a commit to nasa/cFS that referenced this pull request Aug 2, 2024
*Combines:*

cFE equuleus-rc1+dev183

**Includes:**

*cFE*
- nasa/cFE#2579
- nasa/cFE#2565
- nasa/cFE#2584
- nasa/cFE#2585
- nasa/cFE#2586
- nasa/cFE#2326

Co-authored by: Tvisha Andharia <[email protected]>
Co-authored by: Anh Van <[email protected]>
Co-authored by: Joseph Hickey <[email protected]>
Co-authored by: Avi Weiss <[email protected]>
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Successfully merging this pull request may close these issues.

Possible Uninitialized Data Usage in CFE_FS_ReadHeader
3 participants