CVE-2026-89906

CVE CVE-2026-89906EUVD EUVD-2026-80506Published 2026-09-16T10:32:05.000ZLast changed 2026-09-16T14:39:55.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Refactor jump offset calculation in tail call The old macro-based jmp_offset calculation derives the jump distance from a stale prior-pass code stride, which can lead to wrong branch offsets and soft lockups under extra JIT passes. Fix this by calculating the offset directly on the absolute target: "ctx->offset[insn + 1] - ctx->idx". To avoid a false 16-bit range check abort during size estimation, add a "ctx->image == NULL" guard to inject a safe dummy offset.

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 6.15.11 <6.16; 6.12.43 <6.13; 9262e3e04621558e875eb5afb5e726b648cd5949; f83d469e16bb1f75991ca67c56786fb2aaa42bea; cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 <37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8; 6.6.103 <6.7; patch: 6.18.51; 6.1.149 <6.2; f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f; patch: 7.3-rc1; 17c010fe45def335fe03a0718935416b04c7f349; cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 <882b8912b7e92341fdb115ba0e2e5142a28684ff; cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 <96f44d493c280ea161569c43d7ed0f3b0815803a; patch: 0; patch: 7.2.5; 1a782fa32e644aa9fbae6c8488f3e61221ac96e1; 6.16.2 <6.17; 6.17

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

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