{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45852", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.079Z", "datePublished": "2026-05-27T12:15:26.084Z", "dateUpdated": "2026-05-30T10:45:31.506Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-30T10:45:31.506Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix double free in rxe_srq_from_init\n\nIn rxe_srq_from_init(), the queue pointer 'q' is assigned to\n'srq->rq.queue' before copying the SRQ number to user space.\nIf copy_to_user() fails, the function calls rxe_queue_cleanup()\nto free the queue, but leaves the now-invalid pointer in\n'srq->rq.queue'.\n\nThe caller of rxe_srq_from_init() (rxe_create_srq) eventually\ncalls rxe_srq_cleanup() upon receiving the error, which triggers\na second rxe_queue_cleanup() on the same memory, leading to a\ndouble free.\n\nThe call trace looks like this:\n kmem_cache_free+0x.../0x...\n rxe_queue_cleanup+0x1a/0x30 [rdma_rxe]\n rxe_srq_cleanup+0x42/0x60 [rdma_rxe]\n rxe_elem_release+0x31/0x70 [rdma_rxe]\n rxe_create_srq+0x12b/0x1a0 [rdma_rxe]\n ib_create_srq_user+0x9a/0x150 [ib_core]\n\nFix this by moving 'srq->rq.queue = q' after copy_to_user."}], "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"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/rxe/rxe_srq.c"], "versions": [{"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "22b8c23a3b92d023614bb00896fe364b2c1a31d3", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "af5956243018918130d52c9f671efdb40bab3366", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "d286f0d4e3ad3caf5f0e673cdad7bf89bf37d947", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "26793db60925df1e88a29466813d586cbc190b8c", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "ce6f8e007682f378279d4cf83b240f12d52c723b", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "5c07aef09a121a4cd622a71eb0753a9e135c84a8", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "26a9cfe12f4ffdeaa136f252478986fa5f397ddc", "status": "affected", "versionType": "git"}, {"version": "aae0484e15f062ad2c2502e68e15dfb8b8f84608", "lessThan": "0beefd0e15d962f497aad750b2d5e9c3570b66d1", "status": "affected", "versionType": "git"}, {"version": "350703fae672d4d649c3562c199eab5ec9dc7c79", "status": "affected", "versionType": "git"}, {"version": "4.19.86", "lessThan": "4.20", "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/rxe/rxe_srq.c"], "versions": [{"version": "4.20", "status": "affected"}, {"version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "4.20", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.86"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/22b8c23a3b92d023614bb00896fe364b2c1a31d3"}, {"url": "https://git.kernel.org/stable/c/af5956243018918130d52c9f671efdb40bab3366"}, {"url": "https://git.kernel.org/stable/c/d286f0d4e3ad3caf5f0e673cdad7bf89bf37d947"}, {"url": "https://git.kernel.org/stable/c/26793db60925df1e88a29466813d586cbc190b8c"}, {"url": "https://git.kernel.org/stable/c/ce6f8e007682f378279d4cf83b240f12d52c723b"}, {"url": "https://git.kernel.org/stable/c/5c07aef09a121a4cd622a71eb0753a9e135c84a8"}, {"url": "https://git.kernel.org/stable/c/26a9cfe12f4ffdeaa136f252478986fa5f397ddc"}, {"url": "https://git.kernel.org/stable/c/0beefd0e15d962f497aad750b2d5e9c3570b66d1"}], "title": "RDMA/rxe: Fix double free in rxe_srq_from_init", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix double free in rxe_srq_from_init\n\nIn rxe_srq_from_init(), the queue pointer 'q' is assigned to\n'srq->rq.queue' before copying the SRQ number to user space.\nIf copy_to_user() fails, the function calls rxe_queue_cleanup()\nto free the queue, but leaves the now-invalid pointer in\n'srq->rq.queue'.\n\nThe caller of rxe_srq_from_init() (rxe_create_srq) eventually\ncalls rxe_srq_cleanup() upon receiving the error, which triggers\na second rxe_queue_cleanup() on the same memory, leading to a\ndouble free.\n\nThe call trace looks like this:\n kmem_cache_free+0x.../0x...\n rxe_queue_cleanup+0x1a/0x30 [rdma_rxe]\n rxe_srq_cleanup+0x42/0x60 [rdma_rxe]\n rxe_elem_release+0x31/0x70 [rdma_rxe]\n rxe_create_srq+0x12b/0x1a0 [rdma_rxe]\n ib_create_srq_user+0x9a/0x150 [ib_core]\n\nFix this by moving 'srq->rq.queue = q' after copy_to_user."}], "id": "CVE-2026-45852", "lastModified": "2026-05-30T11:17:07.020", "metrics": {"cvssMetricV31": [{"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-27T14:16:57.193", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0beefd0e15d962f497aad750b2d5e9c3570b66d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22b8c23a3b92d023614bb00896fe364b2c1a31d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26793db60925df1e88a29466813d586cbc190b8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26a9cfe12f4ffdeaa136f252478986fa5f397ddc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c07aef09a121a4cd622a71eb0753a9e135c84a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af5956243018918130d52c9f671efdb40bab3366"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ce6f8e007682f378279d4cf83b240f12d52c723b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d286f0d4e3ad3caf5f0e673cdad7bf89bf37d947"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: RDMA/rxe: Fix double free in rxe_srq_from_init", "id": "2482166", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482166"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) subsystem, specifically within the `rxe` driver. An error in the `rxe_srq_from_init` function's memory management can lead to a double free vulnerability. This occurs when an attempt to copy data to user space fails, causing the same memory region to be freed twice. A local attacker could potentially exploit this flaw to cause a denial of service (DoS) by crashing the system."], "name": "CVE-2026-45852", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45852\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45852\nhttps://lore.kernel.org/linux-cve-announce/2026052708-CVE-2026-45852-fcf9@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,22b8c23a3b92d023614bb00896fe364b2c1a31d3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,af5956243018918130d52c9f671efdb40bab3366)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,d286f0d4e3ad3caf5f0e673cdad7bf89bf37d947)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,26793db60925df1e88a29466813d586cbc190b8c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,ce6f8e007682f378279d4cf83b240f12d52c723b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,5c07aef09a121a4cd622a71eb0753a9e135c84a8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,26a9cfe12f4ffdeaa136f252478986fa5f397ddc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[aae0484e15f062ad2c2502e68e15dfb8b8f84608,0beefd0e15d962f497aad750b2d5e9c3570b66d1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "350703fae672d4d649c3562c199eab5ec9dc7c79"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.19.86,4.20)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.20"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,4.20)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.252,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T17:15:37.929841+00:00", "updated": "2026-05-30T12:30:23.078170+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}