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Use a null pointer for empty data #338

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gilles-peskine-arm wants to merge 1 commit from gilles-peskine-arm/test-data_t-empty_is_empty-crypto into development
pull from: gilles-peskine-arm/test-data_t-empty_is_empty-crypto
merge into: gh-Mbed-TLS:development
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gilles-peskine-arm commented 2025-06-26 11:41:55 -05:00 (Migrated from github.com)

In binary arguments to test functions, don't allocate an extra byte when a binary input is empty. This could hide bugs where the library tries to access one byte in an empty buffer.

PR checklist

In binary arguments to test functions, don't allocate an extra byte when a binary input is empty. This could hide bugs where the library tries to access one byte in an empty buffer. ## PR checklist - [x] **changelog** not required because: test only - [x] **development PR** not required because: no reliance on the old behavior - [x] **TF-PSA-Crypto PR** here - [x] **framework PR** https://github.com/Mbed-TLS/mbedtls-framework/pull/177 (needs to be merged after 3.6 and crypto are updated) - [x] **3.6 PR** https://github.com/Mbed-TLS/mbedtls/pull/10257 - **tests** provided
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git switch 'development'
git merge --no-ff 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
git switch 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
git rebase 'development'
git switch 'development'
git merge --ff-only 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
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git rebase 'development'
git switch 'development'
git merge --no-ff 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
git switch 'development'
git merge --squash 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
git switch 'development'
git merge --ff-only 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
git switch 'development'
git merge 'gilles-peskine-arm/test-data_t-empty_is_empty-crypto'
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