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vuln-cve/data/2025/38xxx/CVE-2025-38239.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-38239",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T04:51:23.996Z",
"datePublished": "2025-07-09T10:42:24.170Z",
"dateUpdated": "2026-10-15T21:52:12.179Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:00:37.602Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: megaraid_sas: Fix invalid node index\n\nOn a system with DRAM interleave enabled, out-of-bound access is\ndetected:\n\nmegaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0\n------------[ cut here ]------------\nUBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28\nindex -1 is out of range for type 'cpumask *[1024]'\ndump_stack_lvl+0x5d/0x80\nubsan_epilogue+0x5/0x2b\n__ubsan_handle_out_of_bounds.cold+0x46/0x4b\nmegasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas]\nmegasas_probe_one.cold+0xa4d/0x189c [megaraid_sas]\nlocal_pci_probe+0x42/0x90\npci_device_probe+0xdc/0x290\nreally_probe+0xdb/0x340\n__driver_probe_device+0x78/0x110\ndriver_probe_device+0x1f/0xa0\n__driver_attach+0xba/0x1c0\nbus_for_each_dev+0x8b/0xe0\nbus_add_driver+0x142/0x220\ndriver_register+0x72/0xd0\nmegasas_init+0xdf/0xff0 [megaraid_sas]\ndo_one_initcall+0x57/0x310\ndo_init_module+0x90/0x250\ninit_module_from_file+0x85/0xc0\nidempotent_init_module+0x114/0x310\n__x64_sys_finit_module+0x65/0xc0\ndo_syscall_64+0x82/0x170\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix it accordingly."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"baseScore": 7.3,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The bug is in the megaraid_sas PCI probe path and its consequence is consumed via a local procfs read (`/proc/irq/<N>/affinity_hint`); there is no network-reachable component. Local access to the machine is required.\nAC:L - On a system in the affected configuration the out-of-bounds `node_to_cpumask_map[-1]` read occurs deterministically on every probe, and the follow-on procfs read that dereferences the poisoned pointer is a plain file read the attacker can repeat at will with no race or timing dependency.\nPR:L - The corrupted `irq_desc::affinity_hint` is installed by the system itself during ordinary boot without any attacker action; dereferencing it only requires reading world-readable (0444) `/proc/irq/<N>/affinity_hint`, which any unprivileged local account can do.\nUI:N - The vulnerable state is established automatically at driver probe, and the attacker triggers the dereference himself via a procfs read — no victim action of any kind is needed.\nS:U - The out-of-bounds read, the wild dereference, and its effects are all confined to the kernel's own security authority with no crossing into a hypervisor, IOMMU, or other domain.\nC:H - An uncontrolled value adjacent to `node_to_cpumask_map` is treated as a `struct cpumask *`, and `cpumask_copy()` reads `nr_cpu_ids` bits from that arbitrary kernel address straight into a bitmap printed to unprivileged userspace — kernel memory disclosure, not a strictly bounded few-byte read.\nI:L - No out-of-bounds write or control-flow hijack primitive exists; the only modification is that MSI-X affinity for the eight high-IOPS storage vectors gets programmed from an uncontrolled mask, misconfiguring interrupt routing on the system's RAID controller.\nA:H - Dereferencing an arbitrary, potentially unmapped value as a cpumask inside `raw_spinlock_irq` with interrupts disabled can oops or panic the kernel, and the storage controller's interrupt affinity can be left broken."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/scsi/megaraid/megaraid_sas_base.c"
],
"versions": [
{
"version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
"lessThan": "f1064b3532192e987ab17be7281d5fee36fd25e1",
"status": "affected",
"versionType": "git"
},
{
"version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
"lessThan": "bf2c1643abc3b2507d56bb6c22bf9897272f8a35",
"status": "affected",
"versionType": "git"
},
{
"version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
"lessThan": "19a47c966deb36624843b7301f0373a3dc541a05",
"status": "affected",
"versionType": "git"
},
{
"version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
"lessThan": "074efb35552556a4b3b25eedab076d5dc24a8199",
"status": "affected",
"versionType": "git"
},
{
"version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
"lessThan": "752eb816b55adb0673727ba0ed96609a17895654",
"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/scsi/megaraid/megaraid_sas_base.c"
],
"versions": [
{
"version": "5.17",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.17",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.143",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.96",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.36",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.15.5",
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.16",
"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": "5.17",
"versionEndExcluding": "6.1.143"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.17",
"versionEndExcluding": "6.6.96"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.17",
"versionEndExcluding": "6.12.36"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.17",
"versionEndExcluding": "6.15.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.17",
"versionEndExcluding": "6.16"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/f1064b3532192e987ab17be7281d5fee36fd25e1"
},
{
"url": "https://git.kernel.org/stable/c/bf2c1643abc3b2507d56bb6c22bf9897272f8a35"
},
{
"url": "https://git.kernel.org/stable/c/19a47c966deb36624843b7301f0373a3dc541a05"
},
{
"url": "https://git.kernel.org/stable/c/074efb35552556a4b3b25eedab076d5dc24a8199"
},
{
"url": "https://git.kernel.org/stable/c/752eb816b55adb0673727ba0ed96609a17895654"
}
],
"title": "scsi: megaraid_sas: Fix invalid node index",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T17:35:53.326Z"
}
},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2025-38239",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-10-15T21:48:47.838370Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-15T21:52:12.179Z"
}
}
]
}
}