{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48815", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.900Z", "datePublished": "2024-07-16T11:44:03.971Z", "dateUpdated": "2026-05-11T18:47:40.094Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:47:40.094Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: bcm_sf2: don't use devres for mdiobus\n\nAs explained in commits:\n74b6d7d13307 (\"net: dsa: realtek: register the MDIO bus under devres\")\n5135e96a3dd2 (\"net: dsa: don't allocate the slave_mii_bus using devres\")\n\nmdiobus_free() will panic when called from devm_mdiobus_free() <-\ndevres_release_all() <- __device_release_driver(), and that mdiobus was\nnot previously unregistered.\n\nThe Starfighter 2 is a platform device, so the initial set of\nconstraints that I thought would cause this (I2C or SPI buses which call\n->remove on ->shutdown) do not apply. But there is one more which\napplies here.\n\nIf the DSA master itself is on a bus that calls ->remove from ->shutdown\n(like dpaa2-eth, which is on the fsl-mc bus), there is a device link\nbetween the switch and the DSA master, and device_links_unbind_consumers()\nwill unbind the bcm_sf2 switch driver on shutdown.\n\nSo the same treatment must be applied to all DSA switch drivers, which\nis: either use devres for both the mdiobus allocation and registration,\nor don't use devres at all.\n\nThe bcm_sf2 driver has the code structure in place for orderly mdiobus\nremoval, so just replace devm_mdiobus_alloc() with the non-devres\nvariant, and add manual free where necessary, to ensure that we don't\nlet devres free a still-registered bus." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/dsa/bcm_sf2.c" ], "versions": [ { "version": "ac3a68d56651c3dad2c12c7afce065fe15267f44", "lessThan": "2770b795294ed312375c11ef1d0b810499c66b83", "status": "affected", "versionType": "git" }, { "version": "ac3a68d56651c3dad2c12c7afce065fe15267f44", "lessThan": "caabb5f64f5c32fceed93356bb688ef1ec6c5783", "status": "affected", "versionType": "git" }, { "version": "ac3a68d56651c3dad2c12c7afce065fe15267f44", "lessThan": "08e1a3554e99a1a5bd2835907381e2383ee85cae", "status": "affected", "versionType": "git" }, { "version": "ac3a68d56651c3dad2c12c7afce065fe15267f44", "lessThan": "08f1a20822349004bb9cc1b153ecb516e9f2889d", "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/dsa/bcm_sf2.c" ], "versions": [ { "version": "5.9", "status": "affected" }, { "version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.101", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.24", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.10", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17", "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": "5.9", "versionEndExcluding": "5.10.101" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.15.24" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.16.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2770b795294ed312375c11ef1d0b810499c66b83" }, { "url": "https://git.kernel.org/stable/c/caabb5f64f5c32fceed93356bb688ef1ec6c5783" }, { "url": "https://git.kernel.org/stable/c/08e1a3554e99a1a5bd2835907381e2383ee85cae" }, { "url": "https://git.kernel.org/stable/c/08f1a20822349004bb9cc1b153ecb516e9f2889d" } ], "title": "net: dsa: bcm_sf2: don't use devres for mdiobus", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.612Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/2770b795294ed312375c11ef1d0b810499c66b83", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/caabb5f64f5c32fceed93356bb688ef1ec6c5783", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/08e1a3554e99a1a5bd2835907381e2383ee85cae", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/08f1a20822349004bb9cc1b153ecb516e9f2889d", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-48815", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:58:18.935490Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:12.735Z" } } ] } }