CVE-2026-98274

/// Technical description

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

net: psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()

PSP conflicts with TLS ULP in its usage of both skb->decrypted and

sk->sk_validate_xmit_skb().

Make PSP mutually exclusive with TLS ULP, the only other user of either

of these. As other users of skb->decrypted come along, they can be added

to sk_has_decrypt_user(). It would make sense to also assert that

sk->sk_validate_xmit_skb() is also NULL in both of these setup paths for

similar future proofing, but the PSP listener/sk_clone() path is still

broken and it could be seen as a regression to not allow rx assoc to run

on a child of a listener socket with PSP tx assoc state.

Include all TCP ULPs in the sk_has_decrypt_user() check, even though TLS

is the only one that conflicts with PSP via the decrypted bit. This is

intentional because PSP was not designed to be used with ULPs. It is

best to close off surface area that may make bugs reachable, u

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References