Answer in brief
CVE-2026-23422 records a High severity (CVSS 7.8) vulnerability in dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-23422 records a High severity (CVSS 7.8) vulnerability in dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=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 | 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d, b5bababe7703a7322bc59b803ab1587887a2a5e4, c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e, fa4412cdc5178a48799bafcb8af28fd2fbf3d703, 00f42ace446f1e4bf84988f2281131f52cd32796, 28fd8ac1d49389cb230d712116f54e27ebec11b8, 74badb9c20b1a9c02a95c735c6d3cd6121679c93, 5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17 |
| Linux/Linuxgeneric | 6.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Apr 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=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 | 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d, b5bababe7703a7322bc59b803ab1587887a2a5e4, c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e, fa4412cdc5178a48799bafcb8af28fd2fbf3d703, 00f42ace446f1e4bf84988f2281131f52cd32796, 28fd8ac1d49389cb230d712116f54e27ebec11b8, 74badb9c20b1a9c02a95c735c6d3cd6121679c93, 5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17 |
| Linux/Linuxgeneric | 6.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Apr 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.