CVE-2026-98060

CVE CVE-2026-98060EUVD EUVD-2026-86713Published 2026-09-25T10:24:05.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject resilient lock operations in rbtree callbacks __bpf_rbtree_add() keeps parent and link pointers live across calls to the program-supplied comparison callback. The verifier therefore requires the root's lock to remain held throughout the callback. The helper path enforces this rule for bpf_spin_lock() and bpf_spin_unlock(), but the resilient lock kfunc argument path does not. Since resilient locks may protect BPF rbtree roots, a callback can release the root lock and let another CPU remove and free the node referenced by the in-progress tree walk. The walk then resumes using freed pointers. Reject resilient lock kfuncs in an rbtree comparison callback, matching the existing policy for the spin lock helpers. Resilient-lock-protected trees remain valid when their comparison callbacks leave lock state alone.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux patch: 0; patch: 6.18.53; 0de2046137f976e7302d43ac01d9894d07ac1fff <7b7b8b5960102566bd625ae829d1f330c5b5d104; patch: 7.2.7; 6.15; 0de2046137f976e7302d43ac01d9894d07ac1fff <cc2e065ed206aecd9b94564779244f3ffb26e356; 0de2046137f976e7302d43ac01d9894d07ac1fff <71930202a0a0c49f0a3b45b41907a074cb780266; patch: 7.3-rc2

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.