CVE-2024-53226

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"en", "value": "AV:N - The rtrs-srv RDMA block-storage target reaches the vulnerable call from its RDMA_CM connect-request handler (rtrs-srv.c:1978 \u2192 __alloc_path \u2192 map_cont_bufs \u2192 ib_map_mr_sg(..., NULL)), so a remote peer's connection packet drives the deref; hns is RoCEv2 over UDP/IP and therefore routable rather than link-local.\nAC:L - The dereference of the NULL sg_offset is the first statement executed in hns_roce_map_mr_sg() with no race, timing window, or memory-layout precondition \u2014 every invocation from a NULL-passing ULP crashes deterministically.\nPR:N - In the rtrs-srv path the code is reached before any authentication \u2014 only a magic value, protocol version and cid sanity check on attacker-controlled connect private data precede it; on the client-side ULPs (NFS/RDMA, NVMe-oF, SMB Direct) an ordinary unprivileged user's file or block I/O suffices.\nUI:N - No victim action is needed; the attacker simply issues an RDMA connect request to an already-running server, or a local user performs routine I/O over an existing mount.\nS:U - The fault occurs and is contained within the kernel of the affected host with no crossing of a virtualization, IOMMU, or other security authority boundary.\nC:N - The bug is a read of virtual address 0 that immediately faults; no kernel memory contents are returned to or observable by the attacker.\nI:N - No memory is written and no attacker-controlled data is stored \u2014 the faulting access is a read used only for an IS_ALIGNED() test, so no data can be modified.\nA:H - The NULL dereference produces a kernel oops (panic with panic_on_oops, and leaves the RDMA CM handler/session in a broken state otherwise), and it is triggerable repeatedly by any remote connect attempt or local I/O, denying service to the whole system."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", 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"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "147C5FAB-8339-4711-B9FF-B8F0B099192F", "versionEndExcluding": "6.11.11", "versionStartIncluding": "6.10.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776", "versionEndExcluding": "6.12.2", "versionStartIncluding": "6.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix NULL pointer derefernce in hns_roce_map_mr_sg()\n\nib_map_mr_sg() allows ULPs to specify NULL as the sg_offset argument.\nThe driver needs to check whether it is a NULL pointer before\ndereferencing it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/hns: Se corrige la desreferenciaci\u00f3n de puntero NULL en hns_roce_map_mr_sg() ib_map_mr_sg() permite que los ULP especifiquen NULL como argumento sg_offset. El controlador debe verificar si es un puntero NULL antes de desreferenciarlo."}], "id": "CVE-2024-53226", "lastModified": "2026-08-04T11:22:07.133", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-53226", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:03:16.988546Z", "version": "2.0.3"}}]}, "published": "2024-12-27T14:15:30.800", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/35f5b68f63aac61d30ce0b0c6beb09b8845a3e65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52617e76f4963644db71dc0a17e998654dc0c7f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b0d7d6e6883d0ec70cd7b5a02c47c003d5defe7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b526d17eed850352d880b93b9bf20b93006bd92"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71becb0e9df78a8d43dfd0efcef18c830a0af477"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c269bb2cc666ca580271e1a8136c63ac9162e1e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bd715e191d444992d6ed124f15856da5c1cae2de"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: RDMA/hns: Fix NULL pointer derefernce in hns_roce_map_mr_sg()", "id": "2334352", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334352"}, "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"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/hns: Fix NULL pointer derefernce in hns_roce_map_mr_sg()\nib_map_mr_sg() allows ULPs to specify NULL as the sg_offset argument.\nThe driver needs to check whether it is a NULL pointer before\ndereferencing it."], "name": "CVE-2024-53226", "package_state": [{"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": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-53226\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-53226\nhttps://lore.kernel.org/linux-cve-announce/2024122735-CVE-2024-53226-5c23@gregkh/T"], "threat_severity": "Moderate"}

{}