248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-26930",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-02-19T14:20:24.195Z",
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"datePublished": "2024-05-01T05:17:10.685Z",
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"dateUpdated": "2026-08-05T11:28:25.607Z"
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},
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"containers": {
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:28:25.607Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix double free of the ha->vp_map pointer\n\nCoverity scan reported potential risk of double free of the pointer\nha->vp_map. ha->vp_map was freed in qla2x00_mem_alloc(), and again freed\nin function qla2x00_mem_free(ha).\n\nAssign NULL to vp_map and kfree take care of NULL."
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}
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],
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"metrics": [
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{
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable code is only entered from `qla2x00_probe_one()`, i.e. local driver bring-up via module load, sysfs driver bind, or boot-time PCI enumeration; no network or remote-peer data reaches this path.\nAC:H - Triggering requires a kernel memory-allocation failure at one of ~20 specific sites inside the probe, plus the non-default `qlini_mode=exclusive|disabled|dual` (FC target) or `ql2xsecenable=1` on QLA28xx — neither the timing of the probe nor which allocation fails is under the attacker's control.\nPR:L - The only attacker-supplied ingredient is memory exhaustion/fragmentation, which any unprivileged local user can create; the probe itself is driven by ordinary system activity (boot, PCI hotplug, udev/driver rebind), so no elevated privilege is needed for the attacker's half.\nUI:N - Once the allocation failure occurs during probe, the error unwind and the second `kfree()` in `qla2x00_mem_free()` happen automatically inside the kernel with no action by any other user.\nS:U - The corruption is confined to the kernel slab allocator on the same host and crosses no virtualization, IOMMU, or sandbox authority boundary.\nC:H - The double free of the 4 KB `vp_map` object lets the same slab object be handed to two owners, yielding a use-after-free read primitive over whatever kernel structure lands there — potentially arbitrary kernel memory disclosure.\nI:H - Freelist corruption from the double free gives overlapping allocations, the classic path to controlled kernel heap writes and control-flow hijack; the freed 4 KB object is also a prime heap-spray target.\nA:H - With `CONFIG_SLAB_FREELIST_HARDENED`/SLUB debug the second `kfree()` is detected and BUG()s immediately; without it, freelist corruption reliably leads to an oops or panic."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/scsi/qla2xxx/qla_os.c"
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],
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{
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/scsi/qla2xxx/qla_os.c"
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],
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"versions": [
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{
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"version": "6.3",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.3",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.24",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7.12",
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"lessThanOrEqual": "6.7.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.8.3",
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"lessThanOrEqual": "6.8.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.9",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
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"negate": false,
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"versionStartIncluding": "6.3",
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"versionEndExcluding": "6.6.24"
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}
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"title": "scsi: qla2xxx: Fix double free of the ha->vp_map pointer",
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"timestamp": "2024-06-17T17:40:52.767633Z",
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"id": "CVE-2024-26930",
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"options": [
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