Description
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler
Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ handler") introduces a range check for if_id to avoid an out-of-bounds access. If an out-of-bounds if_id is detected, the interrupt status is not cleared. This may result in an interrupt storm.
Clear the interrupt status after detecting an out-of-bounds if_id to avoid the problem.
Found by an experimental AI code review agent at Google.
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:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 77611cab5bdfff7a070ae574bbfba20a1de99d1b, < 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d; >= 34b56c16efd61325d80bf1d780d0e176be662f59, < b5bababe7703a7322bc59b803ab1587887a2a5e4; >= f89e33c9c37f0001b730e23b3b05ab7b1ecface2, < c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e; >= 2447edc367800ba914acf7ddd5d250416b45fb31, < fa4412cdc5178a48799bafcb8af28fd2fbf3d703; >= 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9, < 00f42ace446f1e4bf84988f2281131f52cd32796; >= 31a7a0bbeb006bac2d9c81a2874825025214b6d8, < 28fd8ac1d49389cb230d712116f54e27ebec11b8; >= 31a7a0bbeb006bac2d9c81a2874825025214b6d8, < 74badb9c20b1a9c02a95c735c6d3cd6121679c93; >= 5.15.200, < 5.15.203; >= 6.1.163, < 6.1.167; >= 6.6.124, < 6.6.130; >= 6.12.70, < 6.12.77; >= 6.18.10, < 6.18.17 |
| Linux | Linux | 6.19 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.6, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.5, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.7, < * |
References
- https://git.kernel.org/stable/c/00f42ace446f1e4bf84988f2281131f52cd32796Patch
- https://git.kernel.org/stable/c/28fd8ac1d49389cb230d712116f54e27ebec11b8Patch
- https://git.kernel.org/stable/c/74badb9c20b1a9c02a95c735c6d3cd6121679c93Patch
- https://git.kernel.org/stable/c/7def51cb9fb8b8d5342443372b8cf28d8fbd7f3dPatch
- https://git.kernel.org/stable/c/b5bababe7703a7322bc59b803ab1587887a2a5e4Patch
- https://git.kernel.org/stable/c/c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0ePatch
- https://git.kernel.org/stable/c/fa4412cdc5178a48799bafcb8af28fd2fbf3d703Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Timeline
- Published
- Apr 3, 2026
- Last modified
- Nov 10, 2026
- NVD status
- Modified