{"id":"USN-7585-5","summary":"linux-hwe-5.4 vulnerabilities","details":"It was discovered that the CIFS network file system implementation in the\nLinux kernel did not properly verify the target namespace when handling\nupcalls. An attacker could use this to expose sensitive information.\n(CVE-2025-2312)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - PowerPC architecture;\n  - x86 architecture;\n  - iSCSI Boot Firmware Table Attributes driver;\n  - GPU drivers;\n  - HID subsystem;\n  - InfiniBand drivers;\n  - Media drivers;\n  - MemoryStick subsystem;\n  - Network drivers;\n  - NTB driver;\n  - PCI subsystem;\n  - SCSI subsystem;\n  - Thermal drivers;\n  - JFS file system;\n  - File systems infrastructure;\n  - Tracing infrastructure;\n  - 802.1Q VLAN protocol;\n  - Asynchronous Transfer Mode (ATM) subsystem;\n  - Bluetooth subsystem;\n  - IPv6 networking;\n  - Netfilter;\n  - Network traffic control;\n  - Sun RPC protocol;\n  - USB sound devices;\n(CVE-2025-22007, CVE-2025-21959, CVE-2025-22021, CVE-2025-22063,\nCVE-2025-22045, CVE-2024-58093, CVE-2022-49636, CVE-2025-22020,\nCVE-2024-53168, CVE-2025-22071, CVE-2025-39735, CVE-2025-21991,\nCVE-2025-21992, CVE-2025-21996, CVE-2025-22035, CVE-2023-53034,\nCVE-2025-22054, CVE-2025-23136, CVE-2025-22073, CVE-2024-56551,\nCVE-2025-22005, CVE-2025-37937, CVE-2021-47211, CVE-2025-22086,\nCVE-2025-21956, CVE-2025-38637, CVE-2025-22004, CVE-2025-22018,\nCVE-2025-22079, CVE-2025-21957, CVE-2025-21993)\n","modified":"2026-04-24T10:01:32.731645Z","published":"2025-06-30T18:22:57Z","related":["UBUNTU-CVE-2021-47211","UBUNTU-CVE-2022-49636","UBUNTU-CVE-2023-53034","UBUNTU-CVE-2024-53168","UBUNTU-CVE-2024-56551","UBUNTU-CVE-2024-58093","UBUNTU-CVE-2025-21956","UBUNTU-CVE-2025-21957","UBUNTU-CVE-2025-21959","UBUNTU-CVE-2025-21991","UBUNTU-CVE-2025-21992","UBUNTU-CVE-2025-21993","UBUNTU-CVE-2025-21996","UBUNTU-CVE-2025-22004","UBUNTU-CVE-2025-22005","UBUNTU-CVE-2025-22007","UBUNTU-CVE-2025-22018","UBUNTU-CVE-2025-22020","UBUNTU-CVE-2025-22021","UBUNTU-CVE-2025-22035","UBUNTU-CVE-2025-22045","UBUNTU-CVE-2025-22054","UBUNTU-CVE-2025-22063","UBUNTU-CVE-2025-22071","UBUNTU-CVE-2025-22073","UBUNTU-CVE-2025-22079","UBUNTU-CVE-2025-22086","UBUNTU-CVE-2025-2312","UBUNTU-CVE-2025-23136","UBUNTU-CVE-2025-37937","UBUNTU-CVE-2025-38637","UBUNTU-CVE-2025-39735"],"upstream":["CVE-2021-47211","CVE-2022-49636","CVE-2023-53034","CVE-2024-53168","CVE-2024-56551","CVE-2024-58093","CVE-2025-21956","CVE-2025-21957","CVE-2025-21959","CVE-2025-21991","CVE-2025-21992","CVE-2025-21993","CVE-2025-21996","CVE-2025-22004","CVE-2025-22005","CVE-2025-22007","CVE-2025-22018","CVE-2025-22020","CVE-2025-22021","CVE-2025-22035","CVE-2025-22045","CVE-2025-22054","CVE-2025-22063","CVE-2025-22071","CVE-2025-22073","CVE-2025-22079","CVE-2025-22086","CVE-2025-2312","CVE-2025-23136","CVE-2025-37937","CVE-2025-38637","CVE-2025-39735","UBUNTU-CVE-2021-47211","UBUNTU-CVE-2022-49636","UBUNTU-CVE-2023-53034","UBUNTU-CVE-2024-53168","UBUNTU-CVE-2024-56551","UBUNTU-CVE-2024-58093","UBUNTU-CVE-2025-21956","UBUNTU-CVE-2025-21957","UBUNTU-CVE-2025-21959","UBUNTU-CVE-2025-21991","UBUNTU-CVE-2025-21992","UBUNTU-CVE-2025-21993","UBUNTU-CVE-2025-21996","UBUNTU-CVE-2025-22004","UBUNTU-CVE-2025-22005","UBUNTU-CVE-2025-22007","UBUNTU-CVE-2025-22018","UBUNTU-CVE-2025-22020","UBUNTU-CVE-2025-22021","UBUNTU-CVE-2025-22035","UBUNTU-CVE-2025-22045","UBUNTU-CVE-2025-22054","UBUNTU-CVE-2025-22063","UBUNTU-CVE-2025-22071","UBUNTU-CVE-2025-22073","UBUNTU-CVE-2025-22079","UBUNTU-CVE-2025-22086","UBUNTU-CVE-2025-2312","UBUNTU-CVE-2025-23136","UBUNTU-CVE-2025-37937","UBUNTU-CVE-2025-38637","UBUNTU-CVE-2025-39735"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7585-5"}],"affected":[{"package":{"name":"linux-hwe-5.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/linux-hwe-5.4@5.4.0-218.238~18.04.1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-218.238~18.04.1"}]}],"versions":["5.4.0-37.41~18.04.1","5.4.0-39.43~18.04.1","5.4.0-40.44~18.04.1","5.4.0-42.46~18.04.1","5.4.0-45.49~18.04.2","5.4.0-47.51~18.04.1","5.4.0-48.52~18.04.1","5.4.0-51.56~18.04.1","5.4.0-52.57~18.04.1","5.4.0-53.59~18.04.1","5.4.0-54.60~18.04.1","5.4.0-56.62~18.04.1","5.4.0-58.64~18.04.1","5.4.0-59.65~18.04.1","5.4.0-60.67~18.04.1","5.4.0-62.70~18.04.1","5.4.0-64.72~18.04.1","5.4.0-65.73~18.04.1","5.4.0-66.74~18.04.2","5.4.0-67.75~18.04.1","5.4.0-70.78~18.04.1","5.4.0-71.79~18.04.1","5.4.0-72.80~18.04.1","5.4.0-73.82~18.04.1","5.4.0-74.83~18.04.1","5.4.0-77.86~18.04.1","5.4.0-80.90~18.04.1","5.4.0-81.91~18.04.1","5.4.0-84.94~18.04.1","5.4.0-86.97~18.04.1","5.4.0-87.98~18.04.1","5.4.0-89.100~18.04.1","5.4.0-90.101~18.04.1","5.4.0-91.102~18.04.1","5.4.0-92.103~18.04.2","5.4.0-94.106~18.04.1","5.4.0-96.109~18.04.1","5.4.0-97.110~18.04.1","5.4.0-99.112~18.04.1","5.4.0-100.113~18.04.1","5.4.0-104.118~18.04.1","5.4.0-105.119~18.04.1","5.4.0-107.121~18.04.1","5.4.0-109.123~18.04.1","5.4.0-110.124~18.04.1","5.4.0-113.127~18.04.1","5.4.0-117.132~18.04.1","5.4.0-120.136~18.04.1","5.4.0-121.137~18.04.1","5.4.0-122.138~18.04.1","5.4.0-124.140~18.04.1","5.4.0-125.141~18.04.1","5.4.0-126.142~18.04.1","5.4.0-128.144~18.04.1","5.4.0-131.147~18.04.1","5.4.0-132.148~18.04.1","5.4.0-133.149~18.04.1","5.4.0-135.152~18.04.2","5.4.0-136.153~18.04.1","5.4.0-137.154~18.04.1","5.4.0-139.156~18.04.1","5.4.0-144.161~18.04.1","5.4.0-146.163~18.04.1","5.4.0-147.164~18.04.1","5.4.0-148.165~18.04.1","5.4.0-149.166~18.04.1","5.4.0-150.167~18.04.1","5.4.0-152.169~18.04.1","5.4.0-153.170~18.04.1","5.4.0-155.172~18.04.1","5.4.0-156.173~18.04.1","5.4.0-159.176~18.04.1","5.4.0-162.179~18.04.1","5.4.0-163.180~18.04.1","5.4.0-164.181~18.04.1","5.4.0-165.182~18.04.1","5.4.0-166.183~18.04.2","5.4.0-167.184~18.04.1","5.4.0-169.187~18.04.1","5.4.0-170.188~18.04.1","5.4.0-171.189~18.04.1","5.4.0-172.190~18.04.1","5.4.0-173.191~18.04.1","5.4.0-174.193~18.04.1","5.4.0-175.195~18.04.1","5.4.0-177.197~18.04.1","5.4.0-181.201~18.04.1","5.4.0-182.202~18.04.1","5.4.0-186.206~18.04.1","5.4.0-187.207~18.04.1","5.4.0-189.209~18.04.1","5.4.0-190.210~18.04.1","5.4.0-192.212~18.04.1","5.4.0-193.213~18.04.1","5.4.0-195.215~18.04.1","5.4.0-196.216~18.04.1","5.4.0-198.218~18.04.1","5.4.0-200.220~18.04.1","5.4.0-202.222~18.04.1","5.4.0-204.224~18.04.1","5.4.0-205.225~18.04.1","5.4.0-208.228~18.04.1","5.4.0-211.231~18.04.1","5.4.0-212.232~18.04.1",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