{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3fed09559cd8be79568d368ce02bf7f2d56259b6"
            },
            {
              "fixed": "c043591f03a8111f7d306b8122c444a949486269"
            },
            {
              "fixed": "b5ba8b861b5d833394bd23df3f4b59883ef18c88"
            },
            {
              "fixed": "3791e242ec2e5a5cd9e010a75ed1125d0e84d394"
            },
            {
              "fixed": "38c6831fefde0ff89f8d2dcb924f957a89dec414"
            },
            {
              "fixed": "dbecbe23dc606c4af68b4591a41124186f5c1802"
            },
            {
              "fixed": "50b10bd0c2d721ad38abd1abe3acdefb6caa0944"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90124.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/renesas-rzg2l: Fix loss of interrupt\n\nrzg2l_clear_irq_int() and rzg2l_clear_tint_int() perform a\nread-modify-write on the ISCR/TSCR status registers to clear the bit\nfor the interrupt just handled. Since these registers are\nwrite-0-to-clear per bit, this is racy:\n\nIf another interrupt's status bit gets set between the read and the write,\nthat bit is written back as 0 by the software-constructed value, clearing\nan interrupt that hasn't been serviced yet and losing it.\n\nThis can be reproduced by triggering multiple interrupts at once, e.g.:\n\n  gpioset -c gpiochip0 355=0 353=0 328=0 352=0\n\nFix this by writing back only the bit being cleared, with all other bits\nset to 1, instead of read-modify-writing the whole register.  Since 1-bits\nare left unchanged by hardware, concurrently-set status bits for other\ninterrupts are preserved.",
  "id": "CVE-2026-90124",
  "modified": "2026-09-19T03:30:22.894280823Z",
  "published": "2026-09-17T16:06:27.254Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3791e242ec2e5a5cd9e010a75ed1125d0e84d394"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38c6831fefde0ff89f8d2dcb924f957a89dec414"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50b10bd0c2d721ad38abd1abe3acdefb6caa0944"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5ba8b861b5d833394bd23df3f4b59883ef18c88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c043591f03a8111f7d306b8122c444a949486269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbecbe23dc606c4af68b4591a41124186f5c1802"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90124.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90124"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "irqchip/renesas-rzg2l: Fix loss of interrupt"
}