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Please fix the buggy rwlock!

Please fix the buggy rwlock!

Posted May 29, 2025 10:26 UTC (Thu) by ballombe (subscriber, #9523)
In reply to: Please fix the buggy rwlock! by PengZheng
Parent article: Glibc project revisits infrastructure security

My experience is that glibc test-suite does not cover pthread well.

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Please fix the buggy rwlock!

Posted May 29, 2025 10:50 UTC (Thu) by PengZheng (subscriber, #108006) [Link]

This issue is relatively trivial to reproduce and the impact is HUGE: billions of embedded multimedia devices might be affected.

"Fortunately", there is an easy way out: revert to the good old implementation by Ulrich Drepper.
I have done that 5-6 times in the past year for glibc toolchains from various SOC vendors.

To be honest, I really missed Ulrich Drepper.


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