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In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access vsk->transport. A possible scenario is described by Hyunwoo Kim in the attached link, where after a first connect() interrupted by a signal, and a second connect() failed, we can find `vsk->transport` at NULL, leading to a NULL pointer dereference.
Reserved 2024-12-29 | Published 2025-01-31 | Updated 2025-02-02 | Assigner Linuxgit.kernel.org/...c/18a7fc371d1dbf8deff16c2dd9292bcc73f43040
git.kernel.org/...c/6486915fa661584d70e8e7e4068c6c075c67dd6d
git.kernel.org/...c/88244163bc7e7b0ce9dd7bf4c8a563b41525c3ee
git.kernel.org/...c/d88b249e14bd0ee1e46bbe4f456e22e01b8c68de
git.kernel.org/...c/677579b641af109613564460a4e3bdcb16850b61
git.kernel.org/...c/2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1
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