Description

In the Linux kernel, the following vulnerability has been resolved: page_pool: always add GFP_NOWARN for ATOMIC allocations Driver authors often forget to add GFP_NOWARN for page allocation from the datapath. This is annoying to users as OOMs are a fact of life, and we pretty much expect network Rx to hit page allocation failures during OOM. Make page pool add GFP_NOWARN for ATOMIC allocations by default.

References 6

• git.kernel.org https://git.kernel.org/stable/c/0ec2cd5c58793d0c622797cd5fbe26634b357210
• git.kernel.org https://git.kernel.org/stable/c/3671a0775952026228ae44e096eb144bca75f8dc
• git.kernel.org https://git.kernel.org/stable/c/7613c06ffa89c1e2266fb532e23ef7dfdf269d73
• git.kernel.org https://git.kernel.org/stable/c/9835a0fd59a1df5ec0740fdab6d50db68e0f10de
• git.kernel.org https://git.kernel.org/stable/c/ab48dc0e23eb714b3f233f8e8f6deed7df2051f5
• git.kernel.org https://git.kernel.org/stable/c/f3b52167a0cb23b27414452fbc1278da2ee884fc

Remediation