Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 17c010fe45def335fe03a0718935416b04c7f349 before 50fbc294e4e96246d60cd66f98acf043a362e3a0; affected f83d469e16bb1f75991ca67c56786fb2aaa42bea before 89819868cde78cb2f748533785a46a3430873f20; affected cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 before 882b8912b7e92341fdb115ba0e2e5142a28684ff; affected cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 before 96f44d493c280ea161569c43d7ed0f3b0815803a; affected cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 before 37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8; affected 1a782fa32e644aa9fbae6c8488f3e61221ac96e1; affected f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f; affected 9262e3e04621558e875eb5afb5e726b648cd5949; affected 6.6.103 before 6.6.160; affected 6.12.43 before 6.12.114; affected 6.1.149 before 6.2; affected 6.15.11 before 6.16; affected 6.16.2 before 6.17 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/50fbc294e4e96246d60cd66f98acf043a362e3a0
- https://git.kernel.org/stable/c/89819868cde78cb2f748533785a46a3430873f20
- https://git.kernel.org/stable/c/882b8912b7e92341fdb115ba0e2e5142a28684ff
- https://git.kernel.org/stable/c/96f44d493c280ea161569c43d7ed0f3b0815803a
- https://git.kernel.org/stable/c/37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8