| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix initializing CQ fragments buffer\n\nThe function init_cq_frag_buf() can be called to initialize the current CQ\nfragments buffer cq->buf, or the temporary cq->resize_buf that is filled\nduring CQ resize operation.\n\nHowever, the offending commit started to use function get_cqe() for\ngetting the CQEs, the issue with this change is that get_cqe() always\nreturns CQEs from cq->buf, which leads us to initialize the wrong buffer,\nand in case of enlarging the CQ we try to access elements beyond the size\nof the current cq->buf and eventually hit a kernel panic.\n\n [exception RIP: init_cq_frag_buf+103]\n [ffff9f799ddcbcd8] mlx5_ib_resize_cq at ffffffffc0835d60 [mlx5_ib]\n [ffff9f799ddcbdb0] ib_resize_cq at ffffffffc05270df [ib_core]\n [ffff9f799ddcbdc0] llt_rdma_setup_qp at ffffffffc0a6a712 [llt]\n [ffff9f799ddcbe10] llt_rdma_cc_event_action at ffffffffc0a6b411 [llt]\n [ffff9f799ddcbe98] llt_rdma_client_conn_thread at ffffffffc0a6bb75 [llt]\n [ffff9f799ddcbec8] kthread at ffffffffa66c5da1\n [ffff9f799ddcbf50] ret_from_fork_nospec_begin at ffffffffa6d95ddd\n\nFix it by getting the needed CQE by calling mlx5_frag_buf_get_wqe() that\ntakes the correct source buffer as a parameter." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/infiniband/hw/mlx5/cq.c" |
| ], |
| "versions": [ |
| { |
| "version": "388ca8be00370db132464e27f745b8a0add19fcb", |
| "lessThan": "1ec2dcd680c71d0d36fa25638b327a468babd5c9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "388ca8be00370db132464e27f745b8a0add19fcb", |
| "lessThan": "e3ecd9c09fcc10cf6b2bc67e2990c397c40a8c26", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "388ca8be00370db132464e27f745b8a0add19fcb", |
| "lessThan": "91f7fdc4cc10542ca1045c06aad23365f0d067e0", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "388ca8be00370db132464e27f745b8a0add19fcb", |
| "lessThan": "3e670c54eda238cb8a1ea93538a79ae89285c1c4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "388ca8be00370db132464e27f745b8a0add19fcb", |
| "lessThan": "2ba0aa2feebda680ecfc3c552e867cf4d1b05a3a", |
| "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/hw/mlx5/cq.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.17", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.17", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.195", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.126", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.44", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.11", |
| "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": "4.17", |
| "versionEndExcluding": "4.19.195" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.17", |
| "versionEndExcluding": "5.4.126" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.17", |
| "versionEndExcluding": "5.10.44" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.17", |
| "versionEndExcluding": "5.12.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.17", |
| "versionEndExcluding": "5.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/1ec2dcd680c71d0d36fa25638b327a468babd5c9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e3ecd9c09fcc10cf6b2bc67e2990c397c40a8c26" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/91f7fdc4cc10542ca1045c06aad23365f0d067e0" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3e670c54eda238cb8a1ea93538a79ae89285c1c4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2ba0aa2feebda680ecfc3c552e867cf4d1b05a3a" |
| } |
| ], |
| "title": "IB/mlx5: Fix initializing CQ fragments buffer", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47261", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
