{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-39947",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.148Z",
        "datePublished": "2025-10-04T07:31:08.636Z",
        "dateUpdated": "2026-05-11T21:39:30.137Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:39:30.137Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Harden uplink netdev access against device unbind\n\nThe function mlx5_uplink_netdev_get() gets the uplink netdevice\npointer from mdev->mlx5e_res.uplink_netdev. However, the netdevice can\nbe removed and its pointer cleared when unbound from the mlx5_core.eth\ndriver. This results in a NULL pointer, causing a kernel panic.\n\n BUG: unable to handle page fault for address: 0000000000001300\n at RIP: 0010:mlx5e_vport_rep_load+0x22a/0x270 [mlx5_core]\n Call Trace:\n  <TASK>\n  mlx5_esw_offloads_rep_load+0x68/0xe0 [mlx5_core]\n  esw_offloads_enable+0x593/0x910 [mlx5_core]\n  mlx5_eswitch_enable_locked+0x341/0x420 [mlx5_core]\n  mlx5_devlink_eswitch_mode_set+0x17e/0x3a0 [mlx5_core]\n  devlink_nl_eswitch_set_doit+0x60/0xd0\n  genl_family_rcv_msg_doit+0xe0/0x130\n  genl_rcv_msg+0x183/0x290\n  netlink_rcv_skb+0x4b/0xf0\n  genl_rcv+0x24/0x40\n  netlink_unicast+0x255/0x380\n  netlink_sendmsg+0x1f3/0x420\n  __sock_sendmsg+0x38/0x60\n  __sys_sendto+0x119/0x180\n  do_syscall_64+0x53/0x1d0\n  entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\nEnsure the pointer is valid before use by checking it for NULL. If it\nis valid, immediately call netdev_hold() to take a reference, and\npreventing the netdevice from being freed while it is in use."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/mellanox/mlx5/core/en_rep.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h",
                        "include/linux/mlx5/driver.h"
                    ],
                    "versions": [
                        {
                            "version": "7a9fb35e8c3a67145fca262c304de65cb2f83abf",
                            "lessThan": "2cb17c88edd3a1c7aa6bc880dcdb35a6866fcb2e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7a9fb35e8c3a67145fca262c304de65cb2f83abf",
                            "lessThan": "d1f3db4e7a3be29fc17f01850f162363f919370d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7a9fb35e8c3a67145fca262c304de65cb2f83abf",
                            "lessThan": "8df354eb2dd63d111ed5ae2e956e0dbb22bcf93b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7a9fb35e8c3a67145fca262c304de65cb2f83abf",
                            "lessThan": "6b4be64fd9fec16418f365c2d8e47a7566e9eba5",
                            "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/ethernet/mellanox/mlx5/core/en_rep.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c",
                        "drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h",
                        "include/linux/mlx5/driver.h"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.108",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.49",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.9",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "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": "5.13",
                                    "versionEndExcluding": "6.6.108"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.12.49"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.16.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2cb17c88edd3a1c7aa6bc880dcdb35a6866fcb2e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1f3db4e7a3be29fc17f01850f162363f919370d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8df354eb2dd63d111ed5ae2e956e0dbb22bcf93b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b4be64fd9fec16418f365c2d8e47a7566e9eba5"
                }
            ],
            "title": "net/mlx5e: Harden uplink netdev access against device unbind",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}