{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2022-49021", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.649Z", "datePublished": "2024-10-21T20:06:28.608Z", "dateUpdated": "2024-10-22T13:18:37.179Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-10-21T20:06:28.608Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: fix null-ptr-deref while probe() failed\n\nI got a null-ptr-deref report as following when doing fault injection test:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000058\nOops: 0000 [#1] PREEMPT SMP KASAN PTI\nCPU: 1 PID: 253 Comm: 507-spi-dm9051 Tainted: G B N 6.1.0-rc3+\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nRIP: 0010:klist_put+0x2d/0xd0\nCall Trace:\n \n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x23e/0x2d0\n bus_remove_device+0x1bd/0x240\n device_del+0x357/0x770\n phy_device_remove+0x11/0x30\n mdiobus_unregister+0xa5/0x140\n release_nodes+0x6a/0xa0\n devres_release_all+0xf8/0x150\n device_unbind_cleanup+0x19/0xd0\n\n//probe path:\nphy_device_register()\n device_add()\n\nphy_connect\n phy_attach_direct() //set device driver\n probe() //it's failed, driver is not bound\n device_bind_driver() // probe failed, it's not called\n\n//remove path:\nphy_device_remove()\n device_del()\n device_release_driver_internal()\n __device_release_driver() //dev->drv is not NULL\n klist_remove() <- knode_driver is not added yet, cause null-ptr-deref\n\nIn phy_attach_direct(), after setting the 'dev->driver', probe() fails,\ndevice_bind_driver() is not called, so the knode_driver->n_klist is not\nset, then it causes null-ptr-deref in __device_release_driver() while\ndeleting device. Fix this by setting dev->driver to NULL in the error\npath in phy_attach_direct()." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/phy/phy_device.c" ], "versions": [ { "version": "e13934563db0", "lessThan": "8aaafe0f7131", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "51d7f6b20fae", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "0744c7be4de5", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "3e21f85d87c8", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "fe6bc99c27c2", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "7730904f50c7", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "eaa5722549ac", "status": "affected", "versionType": "git" }, { "version": "e13934563db0", "lessThan": "369eb2c9f1f7", "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/phy/phy_device.c" ], "versions": [ { "version": "2.6.14", "status": "affected" }, { "version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "custom" }, { "version": "4.9.335", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.301", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.268", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.226", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.158", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.82", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.0.12", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8aaafe0f71314f46a066382a047ba8bb3840d273" }, { "url": "https://git.kernel.org/stable/c/51d7f6b20fae8bae64ad1136f1e30d1fd5ba78f7" }, { "url": "https://git.kernel.org/stable/c/0744c7be4de564db03e24527b2e096b7e0e20972" }, { "url": "https://git.kernel.org/stable/c/3e21f85d87c836462bb52ef2078ea561260935c1" }, { "url": "https://git.kernel.org/stable/c/fe6bc99c27c21348f548966118867ed26a9a372c" }, { "url": "https://git.kernel.org/stable/c/7730904f50c7187dd16c76949efb56b5fb55cd57" }, { "url": "https://git.kernel.org/stable/c/eaa5722549ac2604ffa56c2e946acc83226f130c" }, { "url": "https://git.kernel.org/stable/c/369eb2c9f1f72adbe91e0ea8efb130f0a2ba11a6" } ], "title": "net: phy: fix null-ptr-deref while probe() failed", "x_generator": { "engine": "bippy-c9c4e1df01b2" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49021", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-10-22T13:12:34.199961Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:37.179Z" } } ] } }