CVE-2026-53101

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{"bugzilla": {"description": "kernel: wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync", "id": "2492336", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492336"}, "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"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync\nroc_abort_sync() can deadlock with roc_work(). roc_work() holds\ndev->mt76.mutex, while cancel_work_sync() waits for roc_work()\nto finish. If the caller already owns the same mutex, both\nsides block and no progress is possible.\nThis deadlock can occur during station removal when\nmt76_sta_state() -> mt76_sta_remove() -> mt7921_mac_sta_remove() ->\nmt7921_roc_abort_sync() invokes cancel_work_sync() while\nroc_work() is still running and holding dev->mt76.mutex.\nThis avoids the mutex deadlock and preserves exactly-once\nwork ownership.", "A flaw was found in the Linux kernel's mt7921 Wi-Fi driver. A potential deadlock can occur when the `roc_abort_sync()` function attempts to cancel a work item while `roc_work()` is still running and holding a mutex. This situation, which can arise during Wi-Fi station removal, causes both sides to block, preventing further progress. The most important consequence is a Denial of Service (DoS), where the system becomes unresponsive."], "name": "CVE-2026-53101", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53101\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53101\nhttps://lore.kernel.org/linux-cve-announce/2026062411-CVE-2026-53101-1a11@gregkh/T"], "threat_severity": "Moderate"}

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