{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49687",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:21:30.441Z",
        "datePublished": "2025-02-26T02:24:13.187Z",
        "dateUpdated": "2026-05-11T19:04:45.295Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:04:45.295Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: fix xdp_rxq_info bug after suspend/resume\n\nThe following sequence currently causes a driver bug warning\nwhen using virtio_net:\n\n  # ip link set eth0 up\n  # echo mem > /sys/power/state (or e.g. # rtcwake -s 10 -m mem)\n  <resume>\n  # ip link set eth0 down\n\n  Missing register, driver bug\n  WARNING: CPU: 0 PID: 375 at net/core/xdp.c:138 xdp_rxq_info_unreg+0x58/0x60\n  Call trace:\n   xdp_rxq_info_unreg+0x58/0x60\n   virtnet_close+0x58/0xac\n   __dev_close_many+0xac/0x140\n   __dev_change_flags+0xd8/0x210\n   dev_change_flags+0x24/0x64\n   do_setlink+0x230/0xdd0\n   ...\n\nThis happens because virtnet_freeze() frees the receive_queue\ncompletely (including struct xdp_rxq_info) but does not call\nxdp_rxq_info_unreg(). Similarly, virtnet_restore() sets up the\nreceive_queue again but does not call xdp_rxq_info_reg().\n\nActually, parts of virtnet_freeze_down() and virtnet_restore_up()\nare almost identical to virtnet_close() and virtnet_open(): only\nthe calls to xdp_rxq_info_(un)reg() are missing. This means that\nwe can fix this easily and avoid such problems in the future by\njust calling virtnet_close()/open() from the freeze/restore handlers.\n\nAside from adding the missing xdp_rxq_info calls the only difference\nis that the refill work is only cancelled if netif_running(). However,\nthis should not make any functional difference since the refill work\nshould only be active if the network interface is actually up."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/virtio_net.c"
                    ],
                    "versions": [
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "9222672fa6370f0ec3d899662cb8680e9282fc4c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "8c7a32b7c15555beddc5810c3334d9cefff061bf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "340fbdc8011f2dc678f622c5ce1cbb5ab8305de7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "8d7fe9ad6fddc2af8bde4b921b4f8fab231ed38c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "57ee40f1b198b59d43c216fbc4672f9300d3c8b0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "754b8a21a96d5f11712245aef907149606b323ae",
                            "lessThan": "8af52fe9fd3bf5e7478da99193c0632276e1dfce",
                            "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/net/virtio_net.c"
                    ],
                    "versions": [
                        {
                            "version": "4.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.250",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.202",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.127",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.51",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.8",
                            "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": "4.16",
                                    "versionEndExcluding": "4.19.250"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "5.4.202"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "5.18.8"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "5.19"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/9222672fa6370f0ec3d899662cb8680e9282fc4c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8c7a32b7c15555beddc5810c3334d9cefff061bf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/340fbdc8011f2dc678f622c5ce1cbb5ab8305de7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8d7fe9ad6fddc2af8bde4b921b4f8fab231ed38c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/57ee40f1b198b59d43c216fbc4672f9300d3c8b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8af52fe9fd3bf5e7478da99193c0632276e1dfce"
                }
            ],
            "title": "virtio_net: fix xdp_rxq_info bug after suspend/resume",
            "x_generator": {
                "engine": "bippy-1.2.0"
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}