{"cve":"CVE-2026-90124","nvd":{"published":"2026-09-17T17:17:04.650","modified":"2026-10-19T09:19:01.927","status":"Received","description":"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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3791e242ec2e5a5cd9e010a75ed1125d0e84d394","https://git.kernel.org/stable/c/38c6831fefde0ff89f8d2dcb924f957a89dec414","https://git.kernel.org/stable/c/50b10bd0c2d721ad38abd1abe3acdefb6caa0944","https://git.kernel.org/stable/c/b5ba8b861b5d833394bd23df3f4b59883ef18c88","https://git.kernel.org/stable/c/c043591f03a8111f7d306b8122c444a949486269"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90124","score":0.00211,"percentile":0.11299,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}