{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49089", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.248Z", "datePublished": "2025-02-26T01:54:45.743Z", "dateUpdated": "2026-08-05T08:53:50.874Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:53:50.874Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition\n\nThe documentation of the function rvt_error_qp says both r_lock and s_lock\nneed to be held when calling that function. It also asserts using lockdep\nthat both of those locks are held. However, the commit I referenced in\nFixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no\nlonger covered by r_lock. This results in the lockdep assertion failing\nand also possibly in a race condition." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable path is rvt_ruc_loopback on the local send engine when an RC/UC QP targets the local LID (hfi1/qib software loopback), reached via ib_uverbs post_send/modify_qp syscalls—not by processing remote fabric packets.\nAC:L - An unprivileged attacker who can open uverbs fully controls both sides of the race by creating multiple local loopback QPs and issuing concurrent post_send operations (one triggering the unlocked rvt_error_qp path, another using the same QP as responder under r_lock).\nPR:L - /dev/infiniband/uverbs* defaults to mode 0666, and creating/using RC QPs for post_send requires no capabilities (CAP_NET_RAW is only for raw packet/QKEY cases), so a normal local user can reach the bug.\nUI:N - Exploitation needs only the attacker’s own RDMA verbs operations; no action by another user is required.\nS:U - Impact is confined to the local host kernel (memory corruption/crash/privilege escalation within the same security authority); this is not a VM escape or IOMMU boundary bypass.\nC:H - rvt_error_qp without r_lock races with concurrent receive-side use of r_sge and can double-put MRs via rvt_clear_mr_refs/rvt_put_ss, yielding a use-after-free of memory regions that can disclose arbitrary kernel/user memory.\nI:H - The same MR use-after-free and corrupted r_sge state provide a heap corruption primitive that can be leveraged for arbitrary writes and control-flow hijacking in the kernel.\nA:H - The related missing-r_lock race in this path already caused documented kernel NULL dereferences (oops/panic) in rvt_clear_mr_refs and copy_sge; the unlocked rvt_error_qp call enables the same availability-destroying crashes." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/sw/rdmavt/qp.c" ], "versions": [ { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "8a50937227c385a477177c9ffa122b4230e40666", "status": "affected", "versionType": "git" }, { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0", "status": "affected", "versionType": "git" }, { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "92f1947c0d26060e978b3a9f21f32ce7c8c9cca3", "status": "affected", "versionType": "git" }, { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "77ffb2495a41098f9d6a14f8aefde3188da75944", "status": "affected", "versionType": "git" }, { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "57800cc36e55db0547461c49acf5cd84c0f502b0", "status": "affected", "versionType": "git" }, { "version": "d757c60eca9b22f4d108929a24401e0fdecda0b1", "lessThan": "4d809f69695d4e7d1378b3a072fa9aef23123018", "status": "affected", "versionType": "git" }, { "version": "25636de95557a95d54ac30be94af3748345a0a90", "status": "affected", "versionType": "git" }, { "version": "5.0.4", "lessThan": "5.1", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/sw/rdmavt/qp.c" ], "versions": [ { "version": "5.1", "status": "affected" }, { "version": "0", "lessThan": "5.1", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.189", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.111", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.34", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.20", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.3", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18", "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": "5.1", "versionEndExcluding": "5.4.189" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.10.111" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.15.34" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.16.20" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.17.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666" }, { "url": "https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0" }, { "url": "https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3" }, { "url": "https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944" }, { "url": "https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0" }, { "url": "https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018" } ], "title": "IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition", "x_generator": { "engine": "bippy-1.2.0" } } } }