| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix a use after free in siw_alloc_mr\n\nOur code analyzer reported a UAF.\n\nIn siw_alloc_mr(), it calls siw_mr_add_mem(mr,..). In the implementation of\nsiw_mr_add_mem(), mem is assigned to mr->mem and then mem is freed via\nkfree(mem) if xa_alloc_cyclic() failed. Here, mr->mem still point to a\nfreed object. After, the execution continue up to the err_out branch of\nsiw_alloc_mr, and the freed mr->mem is used in siw_mr_drop_mem(mr).\n\nMy patch moves \"mr->mem = mem\" behind the if (xa_alloc_cyclic(..)<0) {}\nsection, to avoid the uaf." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/infiniband/sw/siw/siw_mem.c" |
| ], |
| "versions": [ |
| { |
| "version": "2251334dcac9eb337575d8767e2a6a7e81848f7f", |
| "lessThan": "30b9e92d0b5e5d5dc1101ab856c17009537cbca4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2251334dcac9eb337575d8767e2a6a7e81848f7f", |
| "lessThan": "608a4b90ece039940e9425ee2b39c8beff27e00c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2251334dcac9eb337575d8767e2a6a7e81848f7f", |
| "lessThan": "3e22b88e02c194f6c80867abfef5cc09383461f4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2251334dcac9eb337575d8767e2a6a7e81848f7f", |
| "lessThan": "ad9ce7188432650469a6c7625bf479f5ed0b6155", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2251334dcac9eb337575d8767e2a6a7e81848f7f", |
| "lessThan": "3093ee182f01689b89e9f8797b321603e5de4f63", |
| "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/infiniband/sw/siw/siw_mem.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.3", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.3", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.119", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.37", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.11.21", |
| "lessThanOrEqual": "5.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.4", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13", |
| "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": "5.3", |
| "versionEndExcluding": "5.4.119" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.3", |
| "versionEndExcluding": "5.10.37" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.3", |
| "versionEndExcluding": "5.11.21" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.3", |
| "versionEndExcluding": "5.12.4" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.3", |
| "versionEndExcluding": "5.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/30b9e92d0b5e5d5dc1101ab856c17009537cbca4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/608a4b90ece039940e9425ee2b39c8beff27e00c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3e22b88e02c194f6c80867abfef5cc09383461f4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ad9ce7188432650469a6c7625bf479f5ed0b6155" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3093ee182f01689b89e9f8797b321603e5de4f63" |
| } |
| ], |
| "title": "RDMA/siw: Fix a use after free in siw_alloc_mr", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47012", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
