{"id":"CVE-2026-23422","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler\n\nCommit 31a7a0bbeb00 (\"dpaa2-switch: add bounds check for if_id in IRQ\nhandler\") introduces a…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler\n\nCommit 31a7a0bbeb00 (\"dpaa2-switch: add bounds check for if_id in IRQ\nhandler\") introduces a…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.15.200, < 5.15.203","linux_kernel >= 6.1.163, < 6.1.167","linux_kernel >= 6.6.124, < 6.6.130","linux_kernel >= 6.12.70, < 6.12.77","linux_kernel >= 6.18.10, < 6.18.17","linux_kernel >= 6.19.1, < 6.19.7","linux_kernel = 6.19","linux_kernel = 7.0"],"patched":["linux_kernel 6.19.7"],"published":"2026-04-03","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:55.730","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23422","references":[{"url":"https://git.kernel.org/stable/c/00f42ace446f1e4bf84988f2281131f52cd32796","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/28fd8ac1d49389cb230d712116f54e27ebec11b8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/74badb9c20b1a9c02a95c735c6d3cd6121679c93","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b5bababe7703a7322bc59b803ab1587887a2a5e4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fa4412cdc5178a48799bafcb8af28fd2fbf3d703","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00126,"epssPercentile":0.02297,"ingestedAt":"2026-09-08T15:33:26.992Z","slug":"CVE-2026-23422","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler\n\nCommit 31a7a0bbeb00 (\"dpaa2-switch: add bounds check for if_id in IRQ\nhandler\") introduces a range check for if_id to avoid an out-of-bounds\naccess. If an out-of-bounds if_id is detected, the interrupt status is\nnot cleared. This may result in an interrupt storm.\n\nClear the interrupt status after detecting an out-of-bounds if_id to avoid\nthe problem.\n\nFound by an experimental AI code review agent at Google.\n\n## Affected\n\n- `linux_kernel >= 5.15.200, < 5.15.203`\n- `linux_kernel >= 6.1.163, < 6.1.167`\n- `linux_kernel >= 6.6.124, < 6.6.130`\n- `linux_kernel >= 6.12.70, < 6.12.77`\n- `linux_kernel >= 6.18.10, < 6.18.17`\n- `linux_kernel >= 6.19.1, < 6.19.7`\n- `linux_kernel = 6.19`\n- `linux_kernel = 7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.7`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221681,"id":"CVE-2026-23422","ts":1792035319428,"field":"cvss","old":null,"new":"7.8"},{"seq":221680,"id":"CVE-2026-23422","ts":1792035319428,"field":"severity","old":"none","new":"high"}]}