Sequoia Network Extension Memory Leak

Norbert Heger:

Unfortunately that’s another new bug in the Network Extension framework of macOS. It’s a memory leak in Apple’s framework, which developers must use to create a firewall for the Mac. This bug first occurred in macOS 15.0 Sequoia.

[…]

On macOS 14 Sonoma you may get a hand full of leaks with a total of a few Kilobytes. That’s OK (sort of). But on macOS 15 Sequoia this can easily grow to hundreds of Megabytes and more.

Previously:

• macOS 15.1 Firewall Breaks Third-Party Firewalls
• Networking Issues in Sequoia
• macOS Firewall Regressions in Sequoia
• Little Snitch 6 and DNS Encryption
• macOS 15 Sequoia

Bug Firewall Little Snitch Mac macOS 15 Sequoia Memory Management Network Extensions Networking

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