{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23058",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.952Z",
        "datePublished": "2026-02-04T16:07:41.337Z",
        "dateUpdated": "2026-05-11T21:59:11.271Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:59:11.271Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak\n\nFix similar memory leak as in commit 7352e1d5932a (\"can: gs_usb:\ngs_usb_receive_bulk_callback(): fix URB memory leak\").\n\nIn ems_usb_open(), the URBs for USB-in transfers are allocated, added to\nthe dev->rx_submitted anchor and submitted. In the complete callback\nems_usb_read_bulk_callback(), the URBs are processed and resubmitted. In\nems_usb_close() the URBs are freed by calling\nusb_kill_anchored_urbs(&dev->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in ems_usb_close().\n\nFix the memory leak by anchoring the URB in the\nems_usb_read_bulk_callback() to the dev->rx_submitted anchor."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/can/usb/ems_usb.c"
                    ],
                    "versions": [
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "e2c71030dc464d437110bcfb367c493fd402bddb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "f48eabd15194b216030b32445f44230df95f5fe0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "61e6d3674c3d1da1475dc207b3e75c55d678d18e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "68c62b3e53901846b5f68c5a8bade72a5d9c0b87",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "702171adeed3607ee9603ec30ce081411e36ae42",
                            "lessThan": "0ce73a0eb5a27070957b67fd74059b6da89cc516",
                            "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/can/usb/ems_usb.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.32",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.32",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.249",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.199",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.162",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.122",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.68",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.8",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "2.6.32",
                                    "versionEndExcluding": "5.10.249"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "5.15.199"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "6.1.162"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "6.6.122"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "6.12.68"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "6.18.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.32",
                                    "versionEndExcluding": "6.19"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e2c71030dc464d437110bcfb367c493fd402bddb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f48eabd15194b216030b32445f44230df95f5fe0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/61e6d3674c3d1da1475dc207b3e75c55d678d18e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/68c62b3e53901846b5f68c5a8bade72a5d9c0b87"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0ce73a0eb5a27070957b67fd74059b6da89cc516"
                }
            ],
            "title": "can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak",
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}