{"dataType":"CVE_RECORD","dataVersion":"5.1","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":"2025-05-04T08:23:49.891Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:23:49.891Z"},"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"}}]}}