Advisory Published
CVE Published
Updated

CVE-2024-26787: mmc: mmci: stm32: fix DMA API overlapping mappings warning

First published: Thu Apr 04 2024(Updated: )

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.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
debian/linux
5.10.218-1
5.10.221-1
6.1.94-1
6.1.99-1
6.9.10-1
6.9.12-1
ubuntu/linux<5.15.0-112.122
5.15.0-112.122
ubuntu/linux<6.8~
6.8~
ubuntu/linux-aws<5.15.0-1063.69
5.15.0-1063.69
ubuntu/linux-aws<6.8~
6.8~
ubuntu/linux-aws-5.15<5.15.0-1063.69~20.04.1
5.15.0-1063.69~20.04.1
ubuntu/linux-aws-5.15<6.8~
6.8~
ubuntu/linux-aws-5.4<6.8~
6.8~
ubuntu/linux-aws-6.5<6.8~
6.8~
ubuntu/linux-aws-fips<6.8~
6.8~
ubuntu/linux-aws-hwe<6.8~
6.8~
ubuntu/linux-azure<5.15.0-1066.75
5.15.0-1066.75
ubuntu/linux-azure<6.8~
6.8~
ubuntu/linux-azure-4.15<6.8~
6.8~
ubuntu/linux-azure-5.15<6.8~
6.8~
ubuntu/linux-azure-5.4<6.8~
6.8~
ubuntu/linux-azure-6.5<6.8~
6.8~
ubuntu/linux-azure-fde<5.15.0-1067.76.1
5.15.0-1067.76.1
ubuntu/linux-azure-fde<6.8~
6.8~
ubuntu/linux-azure-fde-5.15<5.15.0-1065.74~20.04.1.1
5.15.0-1065.74~20.04.1.1
ubuntu/linux-azure-fde-5.15<6.8~
6.8~
ubuntu/linux-azure-fips<6.8~
6.8~
ubuntu/linux-bluefield<6.8~
6.8~
ubuntu/linux-fips<6.8~
6.8~
ubuntu/linux-gcp<5.15.0-1062.70
5.15.0-1062.70
ubuntu/linux-gcp<6.8~
6.8~
ubuntu/linux-gcp-4.15<6.8~
6.8~
ubuntu/linux-gcp-5.15<5.15.0-1062.70~20.04.1
5.15.0-1062.70~20.04.1
ubuntu/linux-gcp-5.15<6.8~
6.8~
ubuntu/linux-gcp-5.4<6.8~
6.8~
ubuntu/linux-gcp-6.5<6.8~
6.8~
ubuntu/linux-gcp-fips<6.8~
6.8~
ubuntu/linux-gke<5.15.0-1060.66
5.15.0-1060.66
ubuntu/linux-gke<6.8~
6.8~
ubuntu/linux-gkeop<5.15.0-1046.53
5.15.0-1046.53
ubuntu/linux-gkeop<6.8~
6.8~
ubuntu/linux-gkeop-5.15<5.15.0-1046.53~20.04.1
5.15.0-1046.53~20.04.1
ubuntu/linux-gkeop-5.15<6.8~
6.8~
ubuntu/linux-hwe<6.8~
6.8~
ubuntu/linux-hwe-5.15<5.15.0-113.123~20.04.1
5.15.0-113.123~20.04.1
ubuntu/linux-hwe-5.15<6.8~
6.8~
ubuntu/linux-hwe-5.4<6.8~
6.8~
ubuntu/linux-hwe-6.5<6.8~
6.8~
ubuntu/linux-ibm<5.15.0-1056.59
5.15.0-1056.59
ubuntu/linux-ibm<6.8~
6.8~
ubuntu/linux-ibm-5.15<5.15.0-1057.60~20.04.1
5.15.0-1057.60~20.04.1
ubuntu/linux-ibm-5.15<6.8~
6.8~
ubuntu/linux-ibm-5.4<6.8~
6.8~
ubuntu/linux-intel<6.8~
6.8~
ubuntu/linux-intel-iotg<5.15.0-1058.64
5.15.0-1058.64
ubuntu/linux-intel-iotg<6.8~
6.8~
ubuntu/linux-intel-iotg-5.15<5.15.0-1058.64~20.04.1
5.15.0-1058.64~20.04.1
ubuntu/linux-intel-iotg-5.15<6.8~
6.8~
ubuntu/linux-iot<6.8~
6.8~
ubuntu/linux-kvm<5.15.0-1060.65
5.15.0-1060.65
ubuntu/linux-kvm<6.8~
6.8~
ubuntu/linux-laptop<6.8~
6.8~
ubuntu/linux-lowlatency<5.15.0-110.120
5.15.0-110.120
ubuntu/linux-lowlatency<6.8~
6.8~
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-110.120~20.04.1
5.15.0-110.120~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.8~
6.8~
ubuntu/linux-lowlatency-hwe-6.5<6.8~
6.8~
ubuntu/linux-lts-xenial<6.8~
6.8~
ubuntu/linux-nvidia<5.15.0-1058.59
5.15.0-1058.59
ubuntu/linux-nvidia<6.8~
6.8~
ubuntu/linux-nvidia-6.5<6.8~
6.8~
ubuntu/linux-nvidia-6.8<6.8~
6.8~
ubuntu/linux-nvidia-lowlatency<6.8~
6.8~
ubuntu/linux-oem-6.5<6.8~
6.8~
ubuntu/linux-oem-6.8<6.8~
6.8~
ubuntu/linux-oracle<5.15.0-1061.67
5.15.0-1061.67
ubuntu/linux-oracle<6.8~
6.8~
ubuntu/linux-oracle-5.15<6.8~
6.8~
ubuntu/linux-oracle-5.4<6.8~
6.8~
ubuntu/linux-oracle-6.5<6.8~
6.8~
ubuntu/linux-raspi<5.15.0-1058.61
5.15.0-1058.61
ubuntu/linux-raspi<6.8~
6.8~
ubuntu/linux-raspi-5.4<6.8~
6.8~
ubuntu/linux-riscv<6.8~
6.8~
ubuntu/linux-riscv-5.15<5.15.0-1059.63~20.04.1
5.15.0-1059.63~20.04.1
ubuntu/linux-riscv-5.15<6.8~
6.8~
ubuntu/linux-riscv-6.5<6.8~
6.8~
ubuntu/linux-starfive<6.8~
6.8~
ubuntu/linux-starfive-6.5<6.8~
6.8~
ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34
5.15.0-1030.34
ubuntu/linux-xilinx-zynqmp<6.8~
6.8~

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