CVE-2026-53231

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{}

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{"bugzilla": {"description": "kernel: net: phy: don't try to setup PHY-driven SFP cages when using genphy", "id": "2492844", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492844"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: phy: don't try to setup PHY-driven SFP cages when using genphy\nWe don't have support for PHY-driver SFP cages with the genphy code.\nOn top of that, it was found by sashiko that running\nsfp_bus_add_upstream() for genphy deadlocks, as for genphy the PHY\nprobing runs under RTNL, which isn't the case for non-genphy drivers.\nThis problem was reproduced, and does lead to a deadlock on RTNL.\nBefore the blamed commit, the phy_sfp_probe() call was made by\nindividual PHY drivers, so there was no way to get to the SFP probing\npath when using genphy.\nLet's therefore only run phy_sfp_probe when not using genphy."], "name": "CVE-2026-53231", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53231\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53231\nhttps://lore.kernel.org/linux-cve-announce/2026062508-CVE-2026-53231-90cc@gregkh/T"], "threat_severity": "Low"}

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