| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm btree remove: assign new_root only when removal succeeds\n\nremove_raw() in dm_btree_remove() may fail due to IO read error\n(e.g. read the content of origin block fails during shadowing),\nand the value of shadow_spine::root is uninitialized, but\nthe uninitialized value is still assign to new_root in the\nend of dm_btree_remove().\n\nFor dm-thin, the value of pmd->details_root or pmd->root will become\nan uninitialized value, so if trying to read details_info tree again\nout-of-bound memory may occur as showed below:\n\n general protection fault, probably for non-canonical address 0x3fdcb14c8d7520\n CPU: 4 PID: 515 Comm: dmsetup Not tainted 5.13.0-rc6\n Hardware name: QEMU Standard PC\n RIP: 0010:metadata_ll_load_ie+0x14/0x30\n Call Trace:\n sm_metadata_count_is_more_than_one+0xb9/0xe0\n dm_tm_shadow_block+0x52/0x1c0\n shadow_step+0x59/0xf0\n remove_raw+0xb2/0x170\n dm_btree_remove+0xf4/0x1c0\n dm_pool_delete_thin_device+0xc3/0x140\n pool_message+0x218/0x2b0\n target_message+0x251/0x290\n ctl_ioctl+0x1c4/0x4d0\n dm_ctl_ioctl+0xe/0x20\n __x64_sys_ioctl+0x7b/0xb0\n do_syscall_64+0x40/0xb0\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFixing it by only assign new_root when removal succeeds" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/md/persistent-data/dm-btree-remove.c" |
| ], |
| "versions": [ |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "4c84b3e0728ffe10d89c633694c35a02b5c477dc", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "c154775619186781aaf8a99333ac07437a1768d5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "73f27adaa73e3057a9ec464e33c4f54d34ea5de3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "8fbae4a1bdb5b889490cdee929e68540151536e5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "964d57d1962d7e68f0f578f05d9ae4a104d74851", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "ba47e65a5de3e0e8270301a409fc63d3129fdb9e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "89bf942314b78d454db92427201421b5dec132d9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "ad365e9351ac2b450e7e79932ff6abf59342d91a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "b6e58b5466b2959f83034bead2e2e1395cca8aeb", |
| "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/md/persistent-data/dm-btree-remove.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.4.276", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.276", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.240", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.198", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.133", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.51", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.18", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13.3", |
| "lessThanOrEqual": "5.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.14", |
| "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:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "4.4.276" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "4.9.276" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "4.14.240" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "4.19.198" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.4.133" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.10.51" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.12.18" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.13.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/4c84b3e0728ffe10d89c633694c35a02b5c477dc" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c154775619186781aaf8a99333ac07437a1768d5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/73f27adaa73e3057a9ec464e33c4f54d34ea5de3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8fbae4a1bdb5b889490cdee929e68540151536e5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/964d57d1962d7e68f0f578f05d9ae4a104d74851" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ba47e65a5de3e0e8270301a409fc63d3129fdb9e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/89bf942314b78d454db92427201421b5dec132d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ad365e9351ac2b450e7e79932ff6abf59342d91a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b6e58b5466b2959f83034bead2e2e1395cca8aeb" |
| } |
| ], |
| "title": "dm btree remove: assign new_root only when removal succeeds", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47343", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
