{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49496",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:08:31.586Z",
        "datePublished": "2025-02-26T02:13:31.528Z",
        "dateUpdated": "2026-05-11T19:01:01.704Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:01:01.704Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko\n\nIf the driver support subdev mode, the parameter \"dev->pm.dev\" will be\nNULL in mtk_vcodec_dec_remove. Kernel will crash when try to rmmod\nmtk-vcodec-dec.ko.\n\n[ 4380.702726] pc : do_raw_spin_trylock+0x4/0x80\n[ 4380.707075] lr : _raw_spin_lock_irq+0x90/0x14c\n[ 4380.711509] sp : ffff80000819bc10\n[ 4380.714811] x29: ffff80000819bc10 x28: ffff3600c03e4000 x27: 0000000000000000\n[ 4380.721934] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n[ 4380.729057] x23: ffff3600c0f34930 x22: ffffd5e923549000 x21: 0000000000000220\n[ 4380.736179] x20: 0000000000000208 x19: ffffd5e9213e8ebc x18: 0000000000000020\n[ 4380.743298] x17: 0000002000000000 x16: ffffd5e9213e8e90 x15: 696c346f65646976\n[ 4380.750420] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000040\n[ 4380.757542] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\n[ 4380.764664] x8 : 0000000000000000 x7 : ffff3600c7273ae8 x6 : ffffd5e9213e8ebc\n[ 4380.771786] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\n[ 4380.778908] x2 : 0000000000000000 x1 : ffff3600c03e4000 x0 : 0000000000000208\n[ 4380.786031] Call trace:\n[ 4380.788465]  do_raw_spin_trylock+0x4/0x80\n[ 4380.792462]  __pm_runtime_disable+0x2c/0x1b0\n[ 4380.796723]  mtk_vcodec_dec_remove+0x5c/0xa0 [mtk_vcodec_dec]\n[ 4380.802466]  platform_remove+0x2c/0x60\n[ 4380.806204]  __device_release_driver+0x194/0x250\n[ 4380.810810]  driver_detach+0xc8/0x15c\n[ 4380.814462]  bus_remove_driver+0x5c/0xb0\n[ 4380.818375]  driver_unregister+0x34/0x64\n[ 4380.822288]  platform_driver_unregister+0x18/0x24\n[ 4380.826979]  mtk_vcodec_dec_driver_exit+0x1c/0x888 [mtk_vcodec_dec]\n[ 4380.833240]  __arm64_sys_delete_module+0x190/0x224\n[ 4380.838020]  invoke_syscall+0x48/0x114\n[ 4380.841760]  el0_svc_common.constprop.0+0x60/0x11c\n[ 4380.846540]  do_el0_svc+0x28/0x90\n[ 4380.849844]  el0_svc+0x4c/0x100\n[ 4380.852975]  el0t_64_sync_handler+0xec/0xf0\n[ 4380.857148]  el0t_64_sync+0x190/0x194\n[ 4380.860801] Code: 94431515 17ffffca d503201f d503245f (b9400004)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c"
                    ],
                    "versions": [
                        {
                            "version": "590577a4e5257ac3ed72999a94666ad6ba8f24bc",
                            "lessThan": "1fa37b00dc55a061a3eb82e378849862b4aeca9d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "590577a4e5257ac3ed72999a94666ad6ba8f24bc",
                            "lessThan": "c10c0086db688c95bb4e0e378e523818dff1551d",
                            "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/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c"
                    ],
                    "versions": [
                        {
                            "version": "4.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.3",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.18.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1fa37b00dc55a061a3eb82e378849862b4aeca9d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c10c0086db688c95bb4e0e378e523818dff1551d"
                }
            ],
            "title": "media: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2022-49496",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2025-10-01T19:38:46.175575Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-667",
                                "description": "CWE-667 Improper Locking"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-01T19:46:43.564Z"
                }
            }
        ]
    }
}