{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50282", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-15T13:58:00.976Z", "datePublished": "2025-09-15T14:21:18.658Z", "dateUpdated": "2026-05-23T15:24:07.483Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:24:07.483Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nchardev: fix error handling in cdev_device_add()\n\nWhile doing fault injection test, I got the following report:\n\n------------[ cut here ]------------\nkobject: '(null)' (0000000039956980): is not initialized, yet kobject_put() is being called.\nWARNING: CPU: 3 PID: 6306 at kobject_put+0x23d/0x4e0\nCPU: 3 PID: 6306 Comm: 283 Tainted: G W 6.1.0-rc2-00005-g307c1086d7c9 #1253\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nRIP: 0010:kobject_put+0x23d/0x4e0\nCall Trace:\n \n cdev_device_add+0x15e/0x1b0\n __iio_device_register+0x13b4/0x1af0 [industrialio]\n __devm_iio_device_register+0x22/0x90 [industrialio]\n max517_probe+0x3d8/0x6b4 [max517]\n i2c_device_probe+0xa81/0xc00\n\nWhen device_add() is injected fault and returns error, if dev->devt is not set,\ncdev_add() is not called, cdev_del() is not needed. Fix this by checking dev->devt\nin error path." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/char_dev.c" ], "versions": [ { "version": "da97a80a657d1b1b50ef633e8ff5dbf0d417fc8d", "lessThan": "5d2146889fad4cb9e6c13e790d4cfd871486eca8", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "6acf8597c5b04f455ee0649e11e5f3bcd28f381e", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "34d17b39bceef25e4cf9805cd59250ae05d0a139", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "d85b5247a79355b8432bfd9ac871f96117f750d4", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "c46db6088bccff5115674d583fef46ede80077a2", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "28dc61cc49c6e995121c6d86bef4b73df78dda80", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "b5de1eac71fec1af7723f1083d23a24789fd795c", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "85a5660491b507d33662b8e81c142e6041e642eb", "status": "affected", "versionType": "git" }, { "version": "233ed09d7fdacf592ee91e6c97ce5f4364fbe7c0", "lessThan": "11fa7fefe3d8fac7da56bc9aa3dd5fb3081ca797", "status": "affected", "versionType": "git" }, { "version": "f78b54e7d83c7879f9a6e49e6724019ca34177cc", "status": "affected", "versionType": "git" }, { "version": "d79d7d5c878809964da537336dad5ff55fa1605e", "status": "affected", "versionType": "git" }, { "version": "4.9.224", "lessThan": "4.9.337", "status": "affected", "versionType": "semver" }, { "version": "3.16.83", "lessThan": "3.17", "status": "affected", "versionType": "semver" }, { "version": "4.4.224", "lessThan": "4.5", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/char_dev.c" ], "versions": [ { "version": "4.12", "status": "affected" }, { "version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.337", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.303", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.270", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "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": "4.9.224", "versionEndExcluding": "4.9.337" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "4.14.303" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "4.19.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.4.229" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.10.163" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.0.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.1.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.224" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5d2146889fad4cb9e6c13e790d4cfd871486eca8" }, { "url": "https://git.kernel.org/stable/c/6acf8597c5b04f455ee0649e11e5f3bcd28f381e" }, { "url": "https://git.kernel.org/stable/c/34d17b39bceef25e4cf9805cd59250ae05d0a139" }, { "url": "https://git.kernel.org/stable/c/d85b5247a79355b8432bfd9ac871f96117f750d4" }, { "url": "https://git.kernel.org/stable/c/c46db6088bccff5115674d583fef46ede80077a2" }, { "url": "https://git.kernel.org/stable/c/28dc61cc49c6e995121c6d86bef4b73df78dda80" }, { "url": "https://git.kernel.org/stable/c/b5de1eac71fec1af7723f1083d23a24789fd795c" }, { "url": "https://git.kernel.org/stable/c/85a5660491b507d33662b8e81c142e6041e642eb" }, { "url": "https://git.kernel.org/stable/c/11fa7fefe3d8fac7da56bc9aa3dd5fb3081ca797" } ], "title": "chardev: fix error handling in cdev_device_add()", "x_generator": { "engine": "bippy-1.2.0" } } } }