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Message-ID: <c3ae9c3a-9ecd-4b22-a908-9da587c1c88b@kernel.org> Date: Mon, 18 Dec 2023 19:38:13 -0700 From: David Ahern <dsahern@...nel.org> To: Kui-Feng Lee <sinquersw@...il.com>, netdev@...r.kernel.org Cc: edumazet@...gle.com, Kui-Feng Lee <thinker.li@...il.com> Subject: Re: [PATCH net] net/ipv6: Revert remove expired routes with a separated list of routes On 12/18/23 6:14 PM, Kui-Feng Lee wrote: > > > On 12/17/23 10:55, David Ahern wrote: >> Revert the remainder of 5a08d0065a915 which added a warn on if a fib >> entry is still on the gc_link list, and then revertĀ all of the commit >> in the Fixes tag. The commit has some race conditions given how expires >> is managed on a fib6_info in relation to timer start, adding the entry >> to the gc list and setting the timer value leading to UAF. Revert >> the commit and try again in a later release. > > May I know what your concerns are about the patch I provided? > Even I try it again later, I still need to know what I miss and should > address. This is a judgement call based on 6.7-rc number and upcoming holidays with people offline. A bug fix is needed for a performance optimization; the smart response here is to revert the patch and try again after the holidays.
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