164 lines
7.8 KiB
JSON
164 lines
7.8 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-2026-72474",
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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": "2026-08-09T03:40:39.934Z",
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"datePublished": "2026-08-15T05:57:15.073Z",
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"dateUpdated": "2026-08-17T05:15:23.275Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T05:15:23.275Z"
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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\ndmaengine: dma-axi-dmac: use DMA pool to manange DMA descriptor\n\nFor architectures like Microblaze or arm64 (where this IP is used),\nDMA_DIRECT_REMAP is set which means that dma_alloc_coherent() might\nremap (and hence vmalloc()) some memory. This became visible in a design\nwhere dma_direct_use_pool() is not possible.\n\nWith the above, when calling dma_free_coherent(), vunmap() would be\ncalled from softirq context and thus leading to a BUG().\n\nTo fix it, use a dma pool that is allocated in\n.device_alloc_chan_resources() and allocate blocks from it. The key\npoint is that now dma_pool_free() is used in axi_dmac_free_desc() to\nfree the blocks and that just frees the blocks from the pool in the\nsense they can be used again. In other words, no actual call to\ndma_free_coherent() happens. That only happens when destroying the pool\nin axi_dmac_free_chan_resources() which does not happen in any interrupt\ncontext."
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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/dma/dma-axi-dmac.c"
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],
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"versions": [
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{
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"version": "3f8fd25936ee5f52596f10d420f650c5b5e3285f",
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"lessThan": "a4f41ceecfe68e117bae9c76c5ebc5e2b353fa56",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3f8fd25936ee5f52596f10d420f650c5b5e3285f",
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"lessThan": "c0e6bb2b0408fcac6382158ee2bd9fdc45eceee9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3f8fd25936ee5f52596f10d420f650c5b5e3285f",
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"lessThan": "65e82fa24965b2eb6ad9412f6c530ed9a50a625f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3f8fd25936ee5f52596f10d420f650c5b5e3285f",
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"lessThan": "9e942c8579130e62734c14338e9f451780669164",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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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/dma/dma-axi-dmac.c"
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],
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"versions": [
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{
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"version": "6.8",
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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": "6.8",
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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": "6.12.97",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.40",
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"lessThanOrEqual": "6.18.*",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.12.97"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.18.40"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "7.1.5"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/a4f41ceecfe68e117bae9c76c5ebc5e2b353fa56"
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},
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{
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"url": "https://git.kernel.org/stable/c/c0e6bb2b0408fcac6382158ee2bd9fdc45eceee9"
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},
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{
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"url": "https://git.kernel.org/stable/c/65e82fa24965b2eb6ad9412f6c530ed9a50a625f"
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},
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{
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"url": "https://git.kernel.org/stable/c/9e942c8579130e62734c14338e9f451780669164"
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}
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],
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"title": "dmaengine: dma-axi-dmac: use DMA pool to manange DMA descriptor",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |