Today's Linux Networking Fixes: "Craziness Continues With No End In Sight"
Merged today was the latest batch of Linux networking subsystem fixes to address a variety of bugs. Jakub Kicinski wrote in that pull request:
"Craziness continues with no end in sight. Even discounting the driver revert this is a pretty huge PR for standards of the previous era. I'd speculate - we haven't seen the worst of it, yet. Good news, I guess, is that so far we haven't seen many (any?) cases of "AI reported a bug, we fixed it and a real user regressed".
Current release - fix to a fix:
- Bluetooth: btmtk: accept too short WMT FUNC_CTRL events
- vsock/virtio: relax the recently added memory limit a little
Current release - regressions:
- IB/IPoIB: make sure IB drivers always use async set_rx_mode since some (mlx5) are now required to use it due to locking changes
Previous releases - regressions:
- udp: fix UDP length on last GSO_PARTIAL segment
- af_unix: fix UAF read of tail->len in unix_stream_data_wait()
- tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction
- mlx5e: fix unlocked writing to ICOSQ, breaking AF_XDP
Previous releases - always broken:
- tap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR
- ipv4: raw: reject IP_HDRINCL packets with ihl < 5
- Bluetooth: a lot of locking and concurrency fixes (as always)
- batman-adv (mesh wireless networking): a lot of random fixes for issues reported by security researchers and Sashiko
- netfilter: same thing, a lot of small security-ish fixes all over the place, nothing really stands out
Misc:
- bring back the old 3c509 driver, Maciej wants to maintain it"
Wild times ahead with the Linux AI/LLM usage only continuing to ramp up.
The 3com 3c509 driver was dropped as part of the Linux 7.1 networking code removals but now making a comeback thanks to having a user and willing maintainer.
The full list of Linux networking fixes merged today for Linux 7.1 can be found via this Git merge.
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