CVE-2025-22088

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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 \u2014 each pending connection pinning a CEP, four work structs, and a socket until the MPA timeout \u2014 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 \u2014 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", 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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 \u2014 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": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4", "versionType": "git"}, {"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "667a628ab67d359166799fad89b3c6909599558a", "versionType": "git"}, {"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "a114d25d584c14019d31dbf2163780c47415a187", "versionType": "git"}, {"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "78411a133312ce7d8a3239c76a8fd85bca1cc10f", "versionType": "git"}, {"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "7aa6bb5276d9fec98deb05615a086eeb893854ad", "versionType": "git"}, {"status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "lessThan": "83437689249e6a17b25e27712fbee292e42e7855", "versionType": "git"}], "programFiles": ["drivers/infiniband/hw/erdma/erdma_cm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.134", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.87", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.23", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13.11", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14.2", "versionType": "semver", "lessThanOrEqual": "6.14.*"}, {"status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/hw/erdma/erdma_cm.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-1.2.0"}, "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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.134", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.87", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.23", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.15", "versionStartIncluding": "6.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:42.090Z"}}}, "cveMetadata": {"cveId": "CVE-2025-22088", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:56:42.090Z", "dateReserved": "2024-12-29T08:45:45.817Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-16T14:12:41.065Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/erdma/erdma_cm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}, {"lessThan": "667a628ab67d359166799fad89b3c6909599558a", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}, {"lessThan": "a114d25d584c14019d31dbf2163780c47415a187", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}, {"lessThan": "78411a133312ce7d8a3239c76a8fd85bca1cc10f", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}, {"lessThan": "7aa6bb5276d9fec98deb05615a086eeb893854ad", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}, {"lessThan": "83437689249e6a17b25e27712fbee292e42e7855", "status": "affected", "version": "920d93eac8b97778fef48f34f10e58ddf870fc2a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/erdma/erdma_cm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.134", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.87", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.23", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.11", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B65B69C-B52B-4CD1-AEB5-C1EBC486B174", "versionEndExcluding": "6.1.134", "versionStartIncluding": "6.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EFF24260-49B1-4251-9477-C564CFDAD25B", "versionEndExcluding": "6.6.87", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "26CAB76D-F00F-43CE-BEAD-7097F8FB1D6C", "versionEndExcluding": "6.12.23", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/erdma: Impide el use-after-free en erdma_accept_newconn(). Tras llamar a erdma_cep_put(new_cep), new_cep se libera y la desreferencia posterior causa un problema de UAF. Solucione este problema."}], "id": "CVE-2025-22088", "lastModified": "2026-07-30T06:22:12.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-22088", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-04-21T14:57:39.656411Z", "version": "2.0.3"}}]}, "published": "2025-04-16T15:16:03.000", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/667a628ab67d359166799fad89b3c6909599558a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78411a133312ce7d8a3239c76a8fd85bca1cc10f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7aa6bb5276d9fec98deb05615a086eeb893854ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/83437689249e6a17b25e27712fbee292e42e7855"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a114d25d584c14019d31dbf2163780c47415a187"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: RDMA/erdma: Prevent use-after-free in erdma_accept_newconn()", "id": "2360250", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360250"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/erdma: Prevent use-after-free in erdma_accept_newconn()\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."], "name": "CVE-2025-22088", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22088\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22088\nhttps://lore.kernel.org/linux-cve-announce/2025041616-CVE-2025-22088-ae2e@gregkh/T"], "threat_severity": "Moderate"}

{}