CVE-2026-92485

CVE CVE-2026-92485EUVD EUVD-2026-82106Published 2026-09-17T16:10:00.000ZLast changed 2026-09-18T17:55:25.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix WARNING in bpf_tracing_link_release The trampoline could be corrupted by the blindly 'tr->flags = BPF_TRAMP_F_TAIL_CALL_CTX' in verifier. 1. A fexit attached to a tail_call_reachable prog. 'tr->flags' became 'BPF_TRAMP_F_CALL_ORIG | BPF_TRAMP_F_TAIL_CALL_CTX'. And, the trampoline would poke the target prog's nop insn using jmp insn instead of call insn. 2. Another fexit loaded with the same tail_call_reachable prog target. 'tr->flags' became 'BPF_TRAMP_F_TAIL_CALL_CTX'. 3. Close the first fexit link. Due to no BPF_TRAMP_F_CALL_ORIG in 'tr->flags', the trampoline will fail to restore the prog's nop insn using call insn. [ 3.410719] WARNING: kernel/bpf/syscall.c:3551 at bpf_tracing_link_release+0x53/0x60, CPU#1: test_progs/98 ... [ 3.428793] bpf_link_free+0x58/0x130 [ 3.429293] bpf_link_release+0x23/0x30 Fix the warning by updating 'tr->flags' with '|=' and lock.

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 6.6.2 <6.7; 6.1.72 <6.2; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 <61aaa8782bec59ecffd22e030f54ef9351bcabf9; 6.7; 028480eaf2a1401e914a1fa1a4a21d877cf0ae30; patch: 0; 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544 <48a0209d8da0d90a7b0a0db19d1ff88027b13781; 605c8d8f9966fcd2f0b858fabebe416fc83f2209; patch: 7.2.6; 6.5.12 <6.6; patch: 7.3-rc1; 8f873cc3f67f2257493063e57d0caf07ef889ee9

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

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Linux — Linux

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