Answer in brief
CVE-2024-26787 records a Unknown severity vulnerability in mmc: mmci: stm32: fix DMA API overlapping mappings warning. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=46b723dd867d599420fb640c0eaf2a866ef721d4 <0224cbc53ba82b84affa7619b6d1b1a254bc2c53 || >=46b723dd867d599420fb640c0eaf2a866ef721d4 <5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c || >=46b723dd867d599420fb640c0eaf2a866ef721d4 <70af82bb9c897faa25a44e4181f36c60312b71ef || >=46b723dd867d599420fb640c0eaf2a866ef721d4 <176e66269f0de327375fc0ea51c12c2f5a97e4c4 || >=46b723dd867d599420fb640c0eaf2a866ef721d4 <d610a307225951929b9dff807788439454476f85 || >=46b723dd867d599420fb640c0eaf2a866ef721d4 <6b1ba3f9040be5efc4396d86c9752cdc564730be | 0224cbc53ba82b84affa7619b6d1b1a254bc2c53, 5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c, 70af82bb9c897faa25a44e4181f36c60312b71ef, 176e66269f0de327375fc0ea51c12c2f5a97e4c4, d610a307225951929b9dff807788439454476f85, 6b1ba3f9040be5efc4396d86c9752cdc564730be |
| Linux/Linuxgeneric | 4.20 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
Apr 4, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: mmc: mmci: stm32: fix DMA API overlapping mappings warning Turning on CONFIG_DMA_API_DEBUG_SG results in the following warning: DMA-API: mmci-pl18x 48220000.mmc: cacheline tracking EEXIST, overlapping mappings aren't supported WARNING: CPU: 1 PID: 51 at kernel/dma/debug.c:568 add_dma_entry+0x234/0x2f4 Modules linked in: CPU: 1 PID: 51 Comm: kworker/1:2 Not tainted 6.1.28 #1 Hardware name: STMicroelectronics STM32MP257F-EV1 Evaluation Board (DT) Workqueue: events_freezable mmc_rescan Call trace: add_dma_entry+0x234/0x2f4 debug_dma_map_sg+0x198/0x350 __dma_map_sg_attrs+0xa0/0x110 dma_map_sg_attrs+0x10/0x2c sdmmc_idma_prep_data+0x80/0xc0 mmci_prep_data+0x38/0x84 mmci_start_data+0x108/0x2dc mmci_request+0xe4/0x190 __mmc_start_request+0x68/0x140 mmc_start_request+0x94/0xc0 mmc_wait_for_req+0x70/0x100 mmc_send_tuning+0x108/0x1ac sdmmc_execute_tuning+0x14c/0x210 mmc_execute_tuning+0x48/0xec mmc_sd_init_uhs_card.part.0+0x208/0x464 mmc_sd_init_card+0x318/0x89c mmc_attach_sd+0xe4/0x180 mmc_rescan+0x244/0x320 DMA API debug brings to light leaking dma-mappings as dma_map_sg and dma_unmap_sg are not correctly balanced. If an error occurs in mmci_cmd_irq function, only mmci_dma_error function is called and as this API is not managed on stm32 variant, dma_unmap_sg is never called in this error path.
Quoted source text, attributed separately from HOL analysis.