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{"bugzilla": {"description": "kernel: bus: mhi: host: Drop chan lock before queuing buffers", "id": "2269181", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2269181"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-414", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbus: mhi: host: Drop chan lock before queuing buffers\nEnsure read and write locks for the channel are not taken in succession by\ndropping the read lock from parse_xfer_event() such that a callback given\nto client can potentially queue buffers and acquire the write lock in that\nprocess. Any queueing of buffers should be done without channel read lock\nacquired as it can result in multiple locks and a soft lockup.\n[mani: added fixes tag and cc'ed stable]", "A flaw was found in the Linux Kernel. Read and write locks for the channel are taken in succession by dropping the read lock from parse_xfer_event(), such that a callback given to client can potentially queue buffers and acquire the write lock in that process. This can result in multiple locks and a soft lockup, leading to compromised Availability."], "name": "CVE-2023-52493", "package_state": [{"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": "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": "2024-02-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52493\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52493\nhttps://lore.kernel.org/linux-cve-announce/20240229155245.1571576-34-lee@kernel.org/T"], "statement": "No Red Hat products are affected by this vulnerability.", "threat_severity": "Moderate"}