{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50477",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-04T15:13:33.467Z",
        "datePublished": "2025-10-04T15:16:37.654Z",
        "dateUpdated": "2026-05-11T19:20:15.051Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:20:15.051Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: class: Fix potential memleak in devm_rtc_allocate_device()\n\ndevm_rtc_allocate_device() will alloc a rtc_device first, and then run\ndev_set_name(). If dev_set_name() failed, the rtc_device will memleak.\nMove devm_add_action_or_reset() in front of dev_set_name() to prevent\nmemleak.\n\nunreferenced object 0xffff888110a53000 (size 2048):\n  comm \"python3\", pid 470, jiffies 4296078308 (age 58.882s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 08 30 a5 10 81 88 ff ff  .........0......\n    08 30 a5 10 81 88 ff ff 00 00 00 00 00 00 00 00  .0..............\n  backtrace:\n    [<000000004aac0364>] kmalloc_trace+0x21/0x110\n    [<000000000ff02202>] devm_rtc_allocate_device+0xd4/0x400\n    [<000000001bdf5639>] devm_rtc_device_register+0x1a/0x80\n    [<00000000351bf81c>] rx4581_probe+0xdd/0x110 [rtc_rx4581]\n    [<00000000f0eba0ae>] spi_probe+0xde/0x130\n    [<00000000bff89ee8>] really_probe+0x175/0x3f0\n    [<00000000128e8d84>] __driver_probe_device+0xe6/0x170\n    [<00000000ee5bf913>] device_driver_attach+0x32/0x80\n    [<00000000f3f28f92>] bind_store+0x10b/0x1a0\n    [<000000009ff812d8>] drv_attr_store+0x49/0x70\n    [<000000008139c323>] sysfs_kf_write+0x8d/0xb0\n    [<00000000b6146e01>] kernfs_fop_write_iter+0x214/0x2d0\n    [<00000000ecbe3895>] vfs_write+0x61a/0x7d0\n    [<00000000aa2196ea>] ksys_write+0xc8/0x190\n    [<0000000046a600f5>] do_syscall_64+0x37/0x90\n    [<00000000541a336f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/rtc/class.c"
                    ],
                    "versions": [
                        {
                            "version": "24d23181e43d72ca692a479e70dfe5b0b5dd33f1",
                            "lessThan": "0bcfc8fd3e596994f527b46730579428b3a4fa5f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "24d23181e43d72ca692a479e70dfe5b0b5dd33f1",
                            "lessThan": "59457a0f079eae19aaf322b3cc1c8ba66f55c5f3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "24d23181e43d72ca692a479e70dfe5b0b5dd33f1",
                            "lessThan": "60da73808298ff2cfa9f165d55eb3d7aa7078601",
                            "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/rtc/class.c"
                    ],
                    "versions": [
                        {
                            "version": "5.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.16",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.2",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "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": "5.16",
                                    "versionEndExcluding": "6.0.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.1.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0bcfc8fd3e596994f527b46730579428b3a4fa5f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/59457a0f079eae19aaf322b3cc1c8ba66f55c5f3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/60da73808298ff2cfa9f165d55eb3d7aa7078601"
                }
            ],
            "title": "rtc: class: Fix potential memleak in devm_rtc_allocate_device()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}