{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-22088", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.817Z", "datePublished": "2025-04-16T14:12:41.065Z", "dateUpdated": "2026-08-05T11:56:42.090Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:42.090Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/erdma: Prevent use-after-free in erdma_accept_newconn()\n\nAfter the erdma_cep_put(new_cep) being called, new_cep will be freed,\nand the following dereference will cause a UAF problem. Fix this issue." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - The vulnerable function is the erdma iWARP CM passive-accept handler, driven entirely by remote TCP connections to the RDMA CM listening socket created by `erdma_create_listen()`; the child socket's TCP_ESTABLISHED transition invokes the inherited `erdma_cm_llp_state_change()` callback and queues the ACCEPT work. iWARP/MPA CM traffic is ordinary routable IPv4 TCP, so any host that can reach the erdma interface can drive this path.\nAC:L - The attacker fully controls the connection flood that reaches the code and the abort timing that makes `kernel_accept()` fail (upstream's own comment on the identical siw path attributes it to \"Connection already aborted by peer\"), and the same unbounded flood — each pending connection pinning a CEP, four work structs, and a socket until the MPA timeout — drives the GFP_KERNEL failures in `erdma_cm_alloc_work()`/`sock_create_lite()`. No condition beyond the attacker's influence is required.\nPR:N - `erdma_accept_newconn()` executes at the raw TCP accept stage, before MPA request/reply negotiation and before any CM upcall to userspace, so no authentication or authorization has occurred. An unauthenticated remote peer only needs to open TCP connections to the listening port.\nUI:N - The path is triggered purely by inbound TCP connections processed by the kernel workqueue; no action by any local user or administrator is needed beyond the RDMA service already listening.\nS:U - The corruption is confined to kernel heap memory managed by the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The use-after-free on `struct erdma_cep` lets an attacker who grooms the freed slab slot (trivially, via more connections) corrupt a reallocated kernel object, which per standard UAF assessment can be leveraged into arbitrary kernel memory disclosure.\nI:H - The dangling store writes 8 zero bytes at a fixed offset into a freed kmalloc object, giving a controllable-target write that can zero a pointer, length, or refcount in a sprayed victim object or clobber the SLUB freelist pointer — a primitive escalatable to arbitrary write and control-flow hijack.\nA:H - Even unexploited, the write into freed slab memory corrupts the allocator and adjacent objects, reliably producing a kernel oops or panic, and it can be triggered repeatedly by an unauthenticated remote attacker." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/hw/erdma/erdma_cm.c" ], "versions": [ { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4", "status": "affected", "versionType": "git" }, { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "667a628ab67d359166799fad89b3c6909599558a", "status": "affected", "versionType": "git" }, { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "a114d25d584c14019d31dbf2163780c47415a187", "status": "affected", "versionType": "git" }, { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "78411a133312ce7d8a3239c76a8fd85bca1cc10f", "status": "affected", "versionType": "git" }, { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "7aa6bb5276d9fec98deb05615a086eeb893854ad", "status": "affected", "versionType": "git" }, { "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "83437689249e6a17b25e27712fbee292e42e7855", "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/erdma/erdma_cm.c" ], "versions": [ { "version": "6.0", "status": "affected" }, { "version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.134", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.87", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15", "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": "6.0", "versionEndExcluding": "6.1.134" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.87" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.13.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.14.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.15" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4" }, { "url": "https://git.kernel.org/stable/c/667a628ab67d359166799fad89b3c6909599558a" }, { "url": "https://git.kernel.org/stable/c/a114d25d584c14019d31dbf2163780c47415a187" }, { "url": "https://git.kernel.org/stable/c/78411a133312ce7d8a3239c76a8fd85bca1cc10f" }, { "url": "https://git.kernel.org/stable/c/7aa6bb5276d9fec98deb05615a086eeb893854ad" }, { "url": "https://git.kernel.org/stable/c/83437689249e6a17b25e27712fbee292e42e7855" } ], "title": "RDMA/erdma: Prevent use-after-free in erdma_accept_newconn()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-22088", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-04-21T14:57:39.656411Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-21T15:01:46.305Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:42:07.589Z" } } ] } }