# CVE-2026-92485: linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix WARNING in bpf_tracing_link_release  Th...

CVE-2026-92485 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-92485, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-92485
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-92485](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92485.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-92485](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92485.md) | Sep 23, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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