{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47479",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-22T06:20:56.200Z",
        "datePublished": "2024-05-22T08:19:32.174Z",
        "dateUpdated": "2024-08-04T05:39:59.455Z"
    },
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                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:08:41.273Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix use-after-free in rtl8712_dl_fw\n\nSyzbot reported use-after-free in rtl8712_dl_fw(). The problem was in\nrace condition between r871xu_dev_remove() ->ndo_open() callback.\n\nIt's easy to see from crash log, that driver accesses released firmware\nin ->ndo_open() callback. It may happen, since driver was releasing\nfirmware _before_ unregistering netdev. Fix it by moving\nunregister_netdev() before cleaning up resources.\n\nCall Trace:\n...\n rtl871x_open_fw drivers/staging/rtl8712/hal_init.c:83 [inline]\n rtl8712_dl_fw+0xd95/0xe10 drivers/staging/rtl8712/hal_init.c:170\n rtl8712_hal_init drivers/staging/rtl8712/hal_init.c:330 [inline]\n rtl871x_hal_init+0xae/0x180 drivers/staging/rtl8712/hal_init.c:394\n netdev_open+0xe6/0x6c0 drivers/staging/rtl8712/os_intfs.c:380\n __dev_open+0x2bc/0x4d0 net/core/dev.c:1484\n\nFreed by task 1306:\n...\n release_firmware+0x1b/0x30 drivers/base/firmware_loader/main.c:1053\n r871xu_dev_remove+0xcc/0x2c0 drivers/staging/rtl8712/usb_intf.c:599\n usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/staging/rtl8712/usb_intf.c"
                    ],
                    "versions": [
                        {
                            "version": "8c213fa59199",
                            "lessThan": "c430094541a8",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "8c213fa59199",
                            "lessThan": "befd23bd3b17",
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                },
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                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/staging/rtl8712/usb_intf.c"
                    ],
                    "versions": [
                        {
                            "version": "3.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.3",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.79",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
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                        },
                        {
                            "version": "5.14.18",
                            "lessThanOrEqual": "5.14.*",
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                        },
                        {
                            "version": "5.15.2",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
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                        {
                            "version": "5.16",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c430094541a80575259a94ff879063ef01473506"
                },
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                    "url": "https://git.kernel.org/stable/c/befd23bd3b17f1a3f9c943a8580b47444c7c63ed"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a65c9afe9f2f55b7a7fb4a25ab654cd4139683a4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c052cc1a069c3e575619cf64ec427eb41176ca70"
                }
            ],
            "title": "staging: rtl8712: fix use-after-free in rtl8712_dl_fw",
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                                        "Exploitation": "none"
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                                "timestamp": "2024-05-24T19:24:15.320557Z"
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