CVE-2022-50151

{"id": "CVE-2022-50151", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-06-18T11:15:45.190", "references": [{"url": "https://git.kernel.org/stable/c/8659ab3d936fcf0084676f98b75b317017aa8f82", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e142744f0e96abc69ccd99e6d6c7eb662267f21", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/960a8a35a6027a08c4b511435bf59609b5d5e5cd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: fix random warning message when driver load\n\nWarning log:\n[ 4.141392] Unexpected gfp: 0x4 (GFP_DMA32). Fixing up to gfp: 0xa20 (GFP_ATOMIC). Fix your code!\n[ 4.150340] CPU: 1 PID: 175 Comm: 1-0050 Not tainted 5.15.5-00039-g2fd9ae1b568c #20\n[ 4.158010] Hardware name: Freescale i.MX8QXP MEK (DT)\n[ 4.163155] Call trace:\n[ 4.165600] dump_backtrace+0x0/0x1b0\n[ 4.169286] show_stack+0x18/0x68\n[ 4.172611] dump_stack_lvl+0x68/0x84\n[ 4.176286] dump_stack+0x18/0x34\n[ 4.179613] kmalloc_fix_flags+0x60/0x88\n[ 4.183550] new_slab+0x334/0x370\n[ 4.186878] ___slab_alloc.part.108+0x4d4/0x748\n[ 4.191419] __slab_alloc.isra.109+0x30/0x78\n[ 4.195702] kmem_cache_alloc+0x40c/0x420\n[ 4.199725] dma_pool_alloc+0xac/0x1f8\n[ 4.203486] cdns3_allocate_trb_pool+0xb4/0xd0\n\npool_alloc_page(struct dma_pool *pool, gfp_t mem_flags)\n{\n\t...\n\tpage = kmalloc(sizeof(*page), mem_flags);\n\tpage->vaddr = dma_alloc_coherent(pool->dev, pool->allocation,\n\t\t\t\t\t &page->dma, mem_flags);\n\t...\n}\n\nkmalloc was called with mem_flags, which is passed down in\ncdns3_allocate_trb_pool() and have GFP_DMA32 flags.\nkmall_fix_flags() report warning.\n\nGFP_DMA32 is not useful at all. dma_alloc_coherent() will handle\nDMA memory region correctly by pool->dev. GFP_DMA32 can be removed\nsafely."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: cdns3: se corrige un mensaje de advertencia aleatorio al cargar el controlador. Registro de advertencias: [4.141392] GFP inesperado: 0x4 (GFP_DMA32). Se est\u00e1 solucionando hasta gfp: 0xa20 (GFP_ATOMIC). \u00a1Corrige tu c\u00f3digo! [ 4.150340] CPU: 1 PID: 175 Comm: 1-0050 No contaminado 5.15.5-00039-g2fd9ae1b568c #20 [ 4.158010] Nombre del hardware: Freescale i.MX8QXP MEK (DT) [ 4.163155] Rastreo de llamadas: [ 4.165600] dump_backtrace+0x0/0x1b0 [ 4.169286] show_stack+0x18/0x68 [ 4.172611] dump_stack_lvl+0x68/0x84 [ 4.176286] dump_stack+0x18/0x34 [ 4.179613] kmalloc_fix_flags+0x60/0x88 [ 4.183550] new_slab+0x334/0x370 [ 4.186878] ___slab_alloc.part.108+0x4d4/0x748 [ 4.191419] __slab_alloc.isra.109+0x30/0x78 [ 4.195702] kmem_cache_alloc+0x40c/0x420 [ 4.199725] dma_pool_alloc+0xac/0x1f8 [ 4.203486] cdns3_allocate_trb_pool+0xb4/0xd0 pool_alloc_page(struct dma_pool *pool, gfp_t mem_flags) { ... page = kmalloc(sizeof(*page), mem_flags); page->vaddr = dma_alloc_coherent(pool->dev, pool->allocation, &page->dma, mem_flags); ... } kmalloc se llam\u00f3 con mem_flags, que se transmite en cdns3_allocate_trb_pool() y tiene indicadores GFP_DMA32. kmall_fix_flags() informa una advertencia. GFP_DMA32 no es \u00fatil. dma_alloc_coherent() gestionar\u00e1 correctamente la regi\u00f3n de memoria DMA mediante pool->dev. GFP_DMA32 se puede eliminar de forma segura."}], "lastModified": "2025-11-20T21:36:06.367", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2AB1EA2-D627-490F-A831-7710F8F6920E", "versionEndExcluding": "5.15.63", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "76BFD0D7-0432-4749-A21D-9EE275AFCB53", "versionEndExcluding": "5.19.2", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}