{"id":"CVE-2024-26787","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mmci: stm32: fix DMA API overlapping mappings warning\n\nTurning on CONFIG_DMA_API_DEBUG_SG results in the following warning:\n\nDMA-API: mmci-pl18x 48220000.mmc: cach…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mmci: stm32: fix DMA API overlapping mappings warning\n\nTurning on CONFIG_DMA_API_DEBUG_SG results in the following warning:\n\nDMA-API: mmci-pl18x 48220000.mmc: cach…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.20, < 5.10.213","linux_kernel >= 5.11, < 5.15.152","linux_kernel >= 5.16, < 6.1.81","linux_kernel >= 6.2, < 6.6.21","linux_kernel >= 6.7, < 6.7.9","linux_kernel = 6.8","debian_linux = 10.0"],"patched":["linux_kernel 6.7.9"],"published":"2024-04-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:23.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-26787","references":[{"url":"https://git.kernel.org/stable/c/0224cbc53ba82b84affa7619b6d1b1a254bc2c53","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/176e66269f0de327375fc0ea51c12c2f5a97e4c4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b1ba3f9040be5efc4396d86c9752cdc564730be","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/70af82bb9c897faa25a44e4181f36c60312b71ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d610a307225951929b9dff807788439454476f85","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0224cbc53ba82b84affa7619b6d1b1a254bc2c53","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/176e66269f0de327375fc0ea51c12c2f5a97e4c4","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/6b1ba3f9040be5efc4396d86c9752cdc564730be","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/70af82bb9c897faa25a44e4181f36c60312b71ef","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/d610a307225951929b9dff807788439454476f85","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00226,"epssPercentile":0.13225,"ingestedAt":"2026-10-15T03:30:12.648Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T15:51:02.092511Z"},"slug":"CVE-2024-26787","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mmci: stm32: fix DMA API overlapping mappings warning\n\nTurning on CONFIG_DMA_API_DEBUG_SG results in the following warning:\n\nDMA-API: mmci-pl18x 48220000.mmc: cacheline tracking EEXIST,\noverlapping mappings aren't supported\nWARNING: CPU: 1 PID: 51 at kernel/dma/debug.c:568\nadd_dma_entry+0x234/0x2f4\nModules linked in:\nCPU: 1 PID: 51 Comm: kworker/1:2 Not tainted 6.1.28 #1\nHardware name: STMicroelectronics STM32MP257F-EV1 Evaluation Board (DT)\nWorkqueue: events_freezable mmc_rescan\nCall trace:\nadd_dma_entry+0x234/0x2f4\ndebug_dma_map_sg+0x198/0x350\n__dma_map_sg_attrs+0xa0/0x110\ndma_map_sg_attrs+0x10/0x2c\nsdmmc_idma_prep_data+0x80/0xc0\nmmci_prep_data+0x38/0x84\nmmci_start_data+0x108/0x2dc\nmmci_request+0xe4/0x190\n__mmc_start_request+0x68/0x140\nmmc_start_request+0x94/0xc0\nmmc_wait_for_req+0x70/0x100\nmmc_send_tuning+0x108/0x1ac\nsdmmc_execute_tuning+0x14c/0x210\nmmc_execute_tuning+0x48/0xec\nmmc_sd_init_uhs_card.part.0+0x208/0x464\nmmc_sd_init_card+0x318/0x89c\nmmc_attach_sd+0xe4/0x180\nmmc_rescan+0x244/0x320\n\nDMA API debug brings to light leaking dma-mappings as dma_map_sg and\ndma_unmap_sg are not correctly balanced.\n\nIf an error occurs in mmci_cmd_irq function, only mmci_dma_error\nfunction is called and as this API is not managed on stm32 variant,\ndma_unmap_sg is never called in this error path.\n\n## Affected\n\n- `linux_kernel >= 4.20, < 5.10.213`\n- `linux_kernel >= 5.11, < 5.15.152`\n- `linux_kernel >= 5.16, < 6.1.81`\n- `linux_kernel >= 6.2, < 6.6.21`\n- `linux_kernel >= 6.7, < 6.7.9`\n- `linux_kernel = 6.8`\n- `debian_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.7.9`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}