| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: Fix possible double-free in regcache_rbtree_exit()\n\nIn regcache_rbtree_insert_to_block(), when 'present' realloc failed,\nthe 'blk' which is supposed to assign to 'rbnode->block' will be freed,\nso 'rbnode->block' points a freed memory, in the error handling path of\nregcache_rbtree_init(), 'rbnode->block' will be freed again in\nregcache_rbtree_exit(), KASAN will report double-free as follows:\n\nBUG: KASAN: double-free or invalid-free in kfree+0xce/0x390\nCall Trace:\n slab_free_freelist_hook+0x10d/0x240\n kfree+0xce/0x390\n regcache_rbtree_exit+0x15d/0x1a0\n regcache_rbtree_init+0x224/0x2c0\n regcache_init+0x88d/0x1310\n __regmap_init+0x3151/0x4a80\n __devm_regmap_init+0x7d/0x100\n madera_spi_probe+0x10f/0x333 [madera_spi]\n spi_probe+0x183/0x210\n really_probe+0x285/0xc30\n\nTo fix this, moving up the assignment of rbnode->block to immediately after\nthe reallocation has succeeded so that the data structure stays valid even\nif the second reallocation fails." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/base/regmap/regcache-rbtree.c" |
| ], |
| "versions": [ |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "e72dce9afbdbfa70d9b44f5908a50ff6c4858999", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "fc081477b47dfc3a6cb50a96087fc29674013fc2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "758ced2c3878ff789801e6fee808e185c5cf08d6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "3dae1a4eced3ee733d7222e69b8a55caf2d61091", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "1cead23c1c0bc766dacb900a3b0269f651ad596f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "36e911a16b377bde0ad91a8c679069d0d310b1a6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "50cc1462a668dc62949a1127388bc3af785ce047", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3f4ff561bc88b074d5e868dde4012d89cbb06c87", |
| "lessThan": "55e6d8037805b3400096d621091dfbf713f97e83", |
| "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/base/regmap/regcache-rbtree.c" |
| ], |
| "versions": [ |
| { |
| "version": "3.12", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "3.12", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.4.291", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.289", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.254", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.215", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.157", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.77", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.14.16", |
| "lessThanOrEqual": "5.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15", |
| "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": "3.12", |
| "versionEndExcluding": "4.4.291" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "4.9.289" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "4.14.254" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "4.19.215" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "5.4.157" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "5.10.77" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "5.14.16" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.12", |
| "versionEndExcluding": "5.15" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/e72dce9afbdbfa70d9b44f5908a50ff6c4858999" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fc081477b47dfc3a6cb50a96087fc29674013fc2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/758ced2c3878ff789801e6fee808e185c5cf08d6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3dae1a4eced3ee733d7222e69b8a55caf2d61091" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1cead23c1c0bc766dacb900a3b0269f651ad596f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/36e911a16b377bde0ad91a8c679069d0d310b1a6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/50cc1462a668dc62949a1127388bc3af785ce047" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/55e6d8037805b3400096d621091dfbf713f97e83" |
| } |
| ], |
| "title": "regmap: Fix possible double-free in regcache_rbtree_exit()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47483", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
