References to Advisories, Solutions, and Tools

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Change History

In the Linux kernel, the following vulnerability has been resolved:

gro: fix ownership transfer

If packets are GROed with fraglist they might be segmented later on and
continue their journey in the stack. In skb_segment_list those skbs can
be reused as-is. This is an issue as their destructor was removed in
skb_gro_receive_list but not the reference to their socket, and then
they can't be orphaned. Fix this by also removing the reference to the
socket.

For example this could be observed,

  k

kernel.org https://git.kernel.org/stable/c/2eeab8c47c3c0276e0746bc382f405c9a236a5ad [No types assigned]

kernel.org https://git.kernel.org/stable/c/5b3b67f731296027cceb3efad881ae281213f86f [No types assigned]

kernel.org https://git.kernel.org/stable/c/d225b0ac96dc40d7e8ae2bc227eb2c56e130975f [No types assigned]

kernel.org https://git.kernel.org/stable/c/ed4cccef64c1d0d5b91e69f7a8a6697c3a865486 [No types assigned]

kernel.org https://git.kernel.org/stable/c/fc126c1d51e9552eacd2d717b9ffe9262a8a4cd6 [No types assigned]