{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"HIGH" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: reject short frames before parsing\n\nA BNEP peer can send a short BNEP SDU. bnep_rx_frame() reads the\npacket type byte immediately and, for control packets, reads the control\nopcode and setup UUID-size byte before proving that those bytes are\npresent. bnep_rx_control() also dereferences the control opcode without\nrejecting an empty control payload.\n\nUse skb_pull_data() for the fixed fields in bnep_rx_frame() so a NULL\nreturn gates each dereference. Split the control handler so the frame\npath can pass an opcode that has already been pulled, and keep the\nbyte-buffer wrapper for extension control payloads.\n\nFor BNEP_SETUP_CONN_REQ, name the UUID-size byte before pulling the\nsetup payload. struct bnep_setup_conn_req carries destination and source\nservice UUIDs after that byte, each uuid_size bytes, so the parser now\ndocuments that tuple explicitly instead of leaving the pull length as an\nopaque multiplication.\n\nValidation reproduced this kernel report:\nKASAN slab-out-of-bounds in bnep_rx_frame.isra.0+0x130c/0x1790\nThe buggy address belongs to the object at ffff88800c0f7908 which belongs\nto the cache kmalloc-8 of size 8\nThe buggy address is located 0 bytes to the right of allocated 1-byte\nregion [ffff88800c0f7908, ffff88800c0f7909)\nRead of size 1\nCall trace:\n dump_stack_lvl+0xb3/0x140 (?:?)\n print_address_description+0x57/0x3a0 (?:?)\n bnep_rx_frame+0x130c/0x1790 (net/bluetooth/bnep/core.c:306)\n print_report+0xb9/0x2b0 (?:?)\n __virt_addr_valid+0x1ba/0x3a0 (?:?)\n srso_alias_return_thunk+0x5/0xfbef5 (?:?)\n kasan_addr_to_slab+0x21/0x60 (?:?)\n kasan_report+0xe0/0x110 (?:?)\n process_one_work+0xfce/0x17e0 (kernel/workqueue.c:3200)\n worker_thread+0x65c/0xe40 (?:?)\n __kthread_parkme+0x184/0x230 (?:?)\n kthread+0x35e/0x470 (?:?)\n _raw_spin_unlock_irq+0x28/0x50 (?:?)\n ret_from_fork+0x586/0x870 (?:?)\n __switch_to+0x74f/0xdc0 (?:?)\n ret_from_fork_asm+0x1a/0x30 (?:?)", "category":"general", "title":"Synopsis" } ], "publisher":null, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53253" }, { "summary":"CVE-2026-53253 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2026/csaf-openeuler-cve-2026-53253.json" }, { "summary":"openEuler-SA-2026-3204", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3204" }, { "summary":"CVE-2026-53253", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-53253&packageName=kernel" } ], "title":"openEuler cve CVE-2026-53253", "tracking":{ "initial_release_date":"2026-08-03T17:28:01+08:00", "revision_history":[ { "date":"2026-08-03T17:28:01+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-08-03T17:28:01+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-08-03T17:28:01+08:00", "id":"CVE-2026-53253", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"openEuler-24.03-LTS-SP1", "name":"openEuler-24.03-LTS-SP1" }, "name":"openEuler-24.03-LTS-SP1", "category":"product_version" } ], "category":"product_name" }, { "name":"x86_64", "branches":[ 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Split the control handler so the frame\npath can pass an opcode that has already been pulled, and keep the\nbyte-buffer wrapper for extension control payloads.\n\nFor BNEP_SETUP_CONN_REQ, name the UUID-size byte before pulling the\nsetup payload. struct bnep_setup_conn_req carries destination and source\nservice UUIDs after that byte, each uuid_size bytes, so the parser now\ndocuments that tuple explicitly instead of leaving the pull length as an\nopaque multiplication.\n\nValidation reproduced this kernel report:\nKASAN slab-out-of-bounds in bnep_rx_frame.isra.0+0x130c/0x1790\nThe buggy address belongs to the object at ffff88800c0f7908 which belongs\nto the cache kmalloc-8 of size 8\nThe buggy address is located 0 bytes to the right of allocated 1-byte\nregion [ffff88800c0f7908, ffff88800c0f7909)\nRead of size 1\nCall trace:\n dump_stack_lvl+0xb3/0x140 (?:?)\n print_address_description+0x57/0x3a0 (?:?)\n bnep_rx_frame+0x130c/0x1790 (net/bluetooth/bnep/core.c:306)\n print_report+0xb9/0x2b0 (?:?)\n __virt_addr_valid+0x1ba/0x3a0 (?:?)\n srso_alias_return_thunk+0x5/0xfbef5 (?:?)\n kasan_addr_to_slab+0x21/0x60 (?:?)\n kasan_report+0xe0/0x110 (?:?)\n process_one_work+0xfce/0x17e0 (kernel/workqueue.c:3200)\n worker_thread+0x65c/0xe40 (?:?)\n __kthread_parkme+0x184/0x230 (?:?)\n kthread+0x35e/0x470 (?:?)\n _raw_spin_unlock_irq+0x28/0x50 (?:?)\n ret_from_fork+0x586/0x870 (?:?)\n __switch_to+0x74f/0xdc0 (?:?)\n ret_from_fork_asm+0x1a/0x30 (?:?)", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-24.03-LTS-SP1:bpftool-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:bpftool-debuginfo-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-debuginfo-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-debugsource-6.6.0-145.1.20.157.oe2403sp1.x86_64", 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"vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version":"3.1" }, "products":[ "openEuler-24.03-LTS-SP1:bpftool-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:bpftool-debuginfo-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-debuginfo-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-debugsource-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-devel-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-headers-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-source-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-tools-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-tools-debuginfo-6.6.0-145.1.20.157.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:kernel-tools-devel-6.6.0-145.1.20.157.oe2403sp1.x86_64", 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