{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2022-48878",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-07-16T11:38:08.922Z",
        "datePublished": "2024-08-21T06:10:09.418Z",
        "dateUpdated": "2024-09-12T17:32:53.074Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-08-21T06:10:09.418Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: Fix driver shutdown on closed serdev\n\nThe driver shutdown callback (which sends EDL_SOC_RESET to the device\nover serdev) should not be invoked when HCI device is not open (e.g. if\nhci_dev_open_sync() failed), because the serdev and its TTY are not open\neither.  Also skip this step if device is powered off\n(qca_power_shutdown()).\n\nThe shutdown callback causes use-after-free during system reboot with\nQualcomm Atheros Bluetooth:\n\n  Unable to handle kernel paging request at virtual address\n  0072662f67726fd7\n  ...\n  CPU: 6 PID: 1 Comm: systemd-shutdow Tainted: G        W\n  6.1.0-rt5-00325-g8a5f56bcfcca #8\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\n  Call trace:\n   tty_driver_flush_buffer+0x4/0x30\n   serdev_device_write_flush+0x24/0x34\n   qca_serdev_shutdown+0x80/0x130 [hci_uart]\n   device_shutdown+0x15c/0x260\n   kernel_restart+0x48/0xac\n\nKASAN report:\n\n  BUG: KASAN: use-after-free in tty_driver_flush_buffer+0x1c/0x50\n  Read of size 8 at addr ffff16270c2e0018 by task systemd-shutdow/1\n\n  CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted\n  6.1.0-next-20221220-00014-gb85aaf97fb01-dirty #28\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\n  Call trace:\n   dump_backtrace.part.0+0xdc/0xf0\n   show_stack+0x18/0x30\n   dump_stack_lvl+0x68/0x84\n   print_report+0x188/0x488\n   kasan_report+0xa4/0xf0\n   __asan_load8+0x80/0xac\n   tty_driver_flush_buffer+0x1c/0x50\n   ttyport_write_flush+0x34/0x44\n   serdev_device_write_flush+0x48/0x60\n   qca_serdev_shutdown+0x124/0x274\n   device_shutdown+0x1e8/0x350\n   kernel_restart+0x48/0xb0\n   __do_sys_reboot+0x244/0x2d0\n   __arm64_sys_reboot+0x54/0x70\n   invoke_syscall+0x60/0x190\n   el0_svc_common.constprop.0+0x7c/0x160\n   do_el0_svc+0x44/0xf0\n   el0_svc+0x2c/0x6c\n   el0t_64_sync_handler+0xbc/0x140\n   el0t_64_sync+0x190/0x194"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/hci_qca.c"
                    ],
                    "versions": [
                        {
                            "version": "7e7bbddd029b",
                            "lessThan": "e84ec6e25df9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e7bbddd029b",
                            "lessThan": "908d1742b6e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e7bbddd029b",
                            "lessThan": "ea3ebda47dd5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e7bbddd029b",
                            "lessThan": "272970be3dab",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/hci_qca.c"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.165",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.90",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.8",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e84ec6e25df9bb0968599e92eacedaf3a0a5b587"
                },
                {
                    "url": "https://git.kernel.org/stable/c/908d1742b6e694e84ead5c62e4b7c1bfbb8b46a3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ea3ebda47dd56f6e1c62f2e0e1b6e1b0a973e447"
                },
                {
                    "url": "https://git.kernel.org/stable/c/272970be3dabd24cbe50e393ffee8f04aec3b9a8"
                }
            ],
            "title": "Bluetooth: hci_qca: Fix driver shutdown on closed serdev",
            "x_generator": {
                "engine": "bippy-c9c4e1df01b2"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2022-48878",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-09-10T16:05:06.349695Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-12T17:32:53.074Z"
                }
            }
        ]
    }
}