| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: fix memory leak in gpiochip_setup_dev()\n\nHere is a backtrace report about memory leak detected in\ngpiochip_setup_dev():\n\nunreferenced object 0xffff88810b406400 (size 512):\n comm \"python3\", pid 1682, jiffies 4295346908 (age 24.090s)\n backtrace:\n kmalloc_trace\n device_add\t\tdevice_private_init at drivers/base/core.c:3361\n\t\t\t(inlined by) device_add at drivers/base/core.c:3411\n cdev_device_add\n gpiolib_cdev_register\n gpiochip_setup_dev\n gpiochip_add_data_with_key\n\ngcdev_register() & gcdev_unregister() would call device_add() &\ndevice_del() (no matter CONFIG_GPIO_CDEV is enabled or not) to\nregister/unregister device.\n\nHowever, if device_add() succeeds, some resource (like\nstruct device_private allocated by device_private_init())\nis not released by device_del().\n\nTherefore, after device_add() succeeds by gcdev_register(), it\nneeds to call put_device() to release resource in the error handle\npath.\n\nHere we move forward the register of release function, and let it\nrelease every piece of resource by put_device() instead of kfree().\n\nWhile at it, fix another subtle issue, i.e. when gc->ngpio is equal\nto 0, we still call kcalloc() and, in case of further error, kfree()\non the ZERO_PTR pointer, which is not NULL. It's not a bug per se,\nbut rather waste of the resources and potentially wrong expectation\nabout contents of the gdev->descs variable." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpio/gpiolib.c" |
| ], |
| "versions": [ |
| { |
| "version": "159f3cd92f17c61a4e2a47456de5865b114ef88e", |
| "lessThan": "6daaa84b621485fe28c401be18debf92ae8ef04a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "159f3cd92f17c61a4e2a47456de5865b114ef88e", |
| "lessThan": "371363716398ed718e389bea8c5e9843a79dde4e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "159f3cd92f17c61a4e2a47456de5865b114ef88e", |
| "lessThan": "ec851b23084b3a0af8bf0f5e51d33a8d678bdc49", |
| "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/gpio/gpiolib.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.6", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.6", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.83", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.0.13", |
| "lessThanOrEqual": "6.0.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1", |
| "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": "4.6", |
| "versionEndExcluding": "5.15.83" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.6", |
| "versionEndExcluding": "6.0.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.6", |
| "versionEndExcluding": "6.1" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/6daaa84b621485fe28c401be18debf92ae8ef04a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/371363716398ed718e389bea8c5e9843a79dde4e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ec851b23084b3a0af8bf0f5e51d33a8d678bdc49" |
| } |
| ], |
| "title": "gpiolib: fix memory leak in gpiochip_setup_dev()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-48975", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
