CVE-2026-43463

Published: Mag 08, 2026 Last Modified: Mag 08, 2026

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

rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()

rxrpc_kernel_lookup_peer() can also return error pointers in addition to
NULL, so just checking for NULL is not sufficient.

Fix this by:

(1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL
on allocation failure.

(2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the
error code returned.

https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142

https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477

https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75