272 lines
14 KiB
JSON
272 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49089",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T01:49:39.248Z",
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"datePublished": "2025-02-26T01:54:45.743Z",
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"dateUpdated": "2026-10-15T21:21:06.530Z"
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},
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"cna": {
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"providerMetadata": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:53:50.874Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/infiniband/sw/rdmavt/qp.c"
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],
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"status": "affected",
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},
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{
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/infiniband/sw/rdmavt/qp.c"
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],
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"status": "affected"
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},
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"version": "0",
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"status": "unaffected",
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},
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{
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"version": "5.4.189",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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},
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{
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"version": "5.10.111",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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"version": "5.15.34",
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},
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{
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"version": "5.16.20",
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"lessThanOrEqual": "5.16.*",
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},
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"lessThanOrEqual": "5.17.*",
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"status": "unaffected",
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},
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{
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"version": "5.18",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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"references": [
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"url": "https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944"
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"url": "https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0"
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}
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],
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"title": "IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition",
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-49089",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T21:12:54.975146Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-15T21:21:06.530Z"
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}
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}
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]
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}
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} |