{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49200","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T01:49:39.291Z","datePublished":"2025-02-26T01:55:42.758Z","dateUpdated":"2025-05-04T08:32:13.272Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:32:13.272Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt\n\nFix the following kernel oops in btmtksdio_interrrupt\n\n[   14.339134]  btmtksdio_interrupt+0x28/0x54\n[   14.339139]  process_sdio_pending_irqs+0x68/0x1a0\n[   14.339144]  sdio_irq_work+0x40/0x70\n[   14.339154]  process_one_work+0x184/0x39c\n[   14.339160]  worker_thread+0x228/0x3e8\n[   14.339168]  kthread+0x148/0x3ac\n[   14.339176]  ret_from_fork+0x10/0x30\n\nThat happened because hdev->power_on is already called before\nsdio_set_drvdata which btmtksdio_interrupt handler relies on is not\nproperly set up.\n\nThe details are shown as the below: hci_register_dev would run\nqueue_work(hdev->req_workqueue, &hdev->power_on) as WQ_HIGHPRI\nworkqueue_struct to complete the power-on sequeunce and thus hci_power_on\nmay run before sdio_set_drvdata is done in btmtksdio_probe.\n\nThe hci_dev_do_open in hci_power_on would initialize the device and enable\nthe interrupt and thus it is possible that btmtksdio_interrupt is being\ncalled right before sdio_set_drvdata is filled out.\n\nWhen btmtksdio_interrupt is being called and sdio_set_drvdata is not filled\n, the kernel oops is going to happen because btmtksdio_interrupt access an\nuninitialized pointer."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btmtksdio.c"],"versions":[{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"874eca93966a786eace87fa6dfb206c2dd9519b1","status":"affected","versionType":"git"},{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"70a6cf749d9ff9f463490248322e5343199bc267","status":"affected","versionType":"git"},{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"770a97d3f34b801de1b04737b43e02c55118c41a","status":"affected","versionType":"git"},{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"4d3d1f2c35a19988d3c5f0ee86038b525e830840","status":"affected","versionType":"git"},{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"6d7be5afbb41c918d2f12f857f8c7efa50500be2","status":"affected","versionType":"git"},{"version":"9aebfd4a2200ab8075e44379c758bccefdc589bb","lessThan":"b062a0b9c1dc1ff63094337dccfe1568d5b62023","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/bluetooth/btmtksdio.c"],"versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","status":"unaffected","versionType":"semver"},{"version":"5.4.189","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.110","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.33","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16.19","lessThanOrEqual":"5.16.*","status":"unaffected","versionType":"semver"},{"version":"5.17.2","lessThanOrEqual":"5.17.*","status":"unaffected","versionType":"semver"},{"version":"5.18","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":"5.2","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.10.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/874eca93966a786eace87fa6dfb206c2dd9519b1"},{"url":"https://git.kernel.org/stable/c/70a6cf749d9ff9f463490248322e5343199bc267"},{"url":"https://git.kernel.org/stable/c/770a97d3f34b801de1b04737b43e02c55118c41a"},{"url":"https://git.kernel.org/stable/c/4d3d1f2c35a19988d3c5f0ee86038b525e830840"},{"url":"https://git.kernel.org/stable/c/6d7be5afbb41c918d2f12f857f8c7efa50500be2"},{"url":"https://git.kernel.org/stable/c/b062a0b9c1dc1ff63094337dccfe1568d5b62023"}],"title":"Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt","x_generator":{"engine":"bippy-1.2.0"}}}}