{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89592", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.730Z", "datePublished": "2026-09-11T19:44:55.813Z", "dateUpdated": "2026-09-11T19:44:55.813Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:44:55.813Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: fix NULL dereference and integer overflow in rocket_job_push()\n\nrocket_job_push() allocates a temporary array to hold all input and\noutput GEM object pointers:\n\n bos = kvmalloc_array(job->in_bo_count + job->out_bo_count,\n sizeof(void *), GFP_KERNEL);\n memcpy(bos, job->in_bos, job->in_bo_count * sizeof(void *));\n memcpy(&bos[job->in_bo_count], job->out_bos, ...);\n\nTwo bugs exist:\n\n1. Missing NULL check: if kvmalloc_array() fails, bos is NULL and\n the subsequent memcpy() dereferences it, causing a kernel NULL\n pointer dereference.\n\n2. Integer overflow: in_bo_count and out_bo_count are both u32, set\n directly from userspace-supplied in_bo_handle_count and\n out_bo_handle_count with no prior validation. Their sum is computed\n in u32 arithmetic and can wrap to a smaller value, causing the\n allocation count passed to kvmalloc_array() to be smaller than\n intended. Subsequent uses still operate on the original counts when\n copying and locking objects, which may lead to out-of-bounds accesses\n on the temporary array.\n\nFix by using check_add_overflow() to detect count overflow before the\nallocation, and adding a NULL check on the allocation result."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/rocket/rocket_job.c"], "versions": [{"version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "lessThan": "c1a5bf1b6e1d5944183dcef3844a18c17219af4d", "status": "affected", "versionType": "git"}, {"version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "lessThan": "dfff90a6eb2258e3b867994ae17af4a7ba3504d2", "status": "affected", "versionType": "git"}, {"version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "lessThan": "a85402bff218f2b8f0d806e46c16c2f3d49cdda7", "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/accel/rocket/rocket_job.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "6.18", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c1a5bf1b6e1d5944183dcef3844a18c17219af4d"}, {"url": "https://git.kernel.org/stable/c/dfff90a6eb2258e3b867994ae17af4a7ba3504d2"}, {"url": "https://git.kernel.org/stable/c/a85402bff218f2b8f0d806e46c16c2f3d49cdda7"}], "title": "accel/rocket: fix NULL dereference and integer overflow in rocket_job_push()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/accel/rocket/rocket_job.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c1a5bf1b6e1d5944183dcef3844a18c17219af4d", "status": "affected", "version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "versionType": "git"}, {"lessThan": "dfff90a6eb2258e3b867994ae17af4a7ba3504d2", "status": "affected", "version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "versionType": "git"}, {"lessThan": "a85402bff218f2b8f0d806e46c16c2f3d49cdda7", "status": "affected", "version": "0810d5ad88a18f1e6d549853a388ad0316f74e36", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/accel/rocket/rocket_job.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: fix NULL dereference and integer overflow in rocket_job_push()\n\nrocket_job_push() allocates a temporary array to hold all input and\noutput GEM object pointers:\n\n bos = kvmalloc_array(job->in_bo_count + job->out_bo_count,\n sizeof(void *), GFP_KERNEL);\n memcpy(bos, job->in_bos, job->in_bo_count * sizeof(void *));\n memcpy(&bos[job->in_bo_count], job->out_bos, ...);\n\nTwo bugs exist:\n\n1. Missing NULL check: if kvmalloc_array() fails, bos is NULL and\n the subsequent memcpy() dereferences it, causing a kernel NULL\n pointer dereference.\n\n2. Integer overflow: in_bo_count and out_bo_count are both u32, set\n directly from userspace-supplied in_bo_handle_count and\n out_bo_handle_count with no prior validation. Their sum is computed\n in u32 arithmetic and can wrap to a smaller value, causing the\n allocation count passed to kvmalloc_array() to be smaller than\n intended. Subsequent uses still operate on the original counts when\n copying and locking objects, which may lead to out-of-bounds accesses\n on the temporary array.\n\nFix by using check_add_overflow() to detect count overflow before the\nallocation, and adding a NULL check on the allocation result."}], "id": "CVE-2026-89592", "lastModified": "2026-09-11T20:19:43.807", "metrics": {}, "published": "2026-09-11T20:19:43.807", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a85402bff218f2b8f0d806e46c16c2f3d49cdda7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1a5bf1b6e1d5944183dcef3844a18c17219af4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dfff90a6eb2258e3b867994ae17af4a7ba3504d2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: accel/rocket NULL dereference and integer overflow", "id": "2532166", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532166"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the `accel/rocket` component of the Linux kernel. This vulnerability arises from two issues: a missing null check after a memory allocation failure and an integer overflow when calculating memory requirements based on user-supplied values. An attacker could exploit these flaws to cause a kernel null pointer dereference or out-of-bounds memory access, potentially leading to a denial of service."], "name": "CVE-2026-89592", "public_date": "2026-09-11T19:44:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89592\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89592\nhttps://git.kernel.org/stable/c/a85402bff218f2b8f0d806e46c16c2f3d49cdda7\nhttps://git.kernel.org/stable/c/c1a5bf1b6e1d5944183dcef3844a18c17219af4d\nhttps://git.kernel.org/stable/c/dfff90a6eb2258e3b867994ae17af4a7ba3504d2"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0810d5ad88a18f1e6d549853a388ad0316f74e36,c1a5bf1b6e1d5944183dcef3844a18c17219af4d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0810d5ad88a18f1e6d549853a388ad0316f74e36,dfff90a6eb2258e3b867994ae17af4a7ba3504d2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0810d5ad88a18f1e6d549853a388ad0316f74e36,a85402bff218f2b8f0d806e46c16c2f3d49cdda7)"}}], "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": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.50,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.4,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "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": "2026-09-12T09:30:13.017661+00:00", "updated": "2026-09-12T11:45:03.625914+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}