Description
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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 17c010fe45def335fe03a0718935416b04c7f349, < 50fbc294e4e96246d60cd66f98acf043a362e3a0; >= f83d469e16bb1f75991ca67c56786fb2aaa42bea, < 89819868cde78cb2f748533785a46a3430873f20; >= cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3, < 882b8912b7e92341fdb115ba0e2e5142a28684ff; >= cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3, < 96f44d493c280ea161569c43d7ed0f3b0815803a; >= cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3, < 37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8; 1a782fa32e644aa9fbae6c8488f3e61221ac96e1; f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f; 9262e3e04621558e875eb5afb5e726b648cd5949; >= 6.6.103, < 6.6.160; >= 6.12.43, < 6.12.114; >= 6.1.149, < 6.2; >= 6.15.11, < 6.16; >= 6.16.2, < 6.17 |
| Linux | Linux | 6.17 |
References
- https://git.kernel.org/stable/c/37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8
- https://git.kernel.org/stable/c/50fbc294e4e96246d60cd66f98acf043a362e3a0
- https://git.kernel.org/stable/c/882b8912b7e92341fdb115ba0e2e5142a28684ff
- https://git.kernel.org/stable/c/89819868cde78cb2f748533785a46a3430873f20
- https://git.kernel.org/stable/c/96f44d493c280ea161569c43d7ed0f3b0815803a
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 21, 2026
- NVD status
- Received