CVE-2024-26787

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Source
https://cve.org/CVERecord?id=CVE-2024-26787
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26787.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-26787
Downstream
Related
Published
2024-04-04T08:20:19.751Z
Modified
2026-03-20T12:35:13.377431Z
Summary
mmc: mmci: stm32: fix DMA API overlapping mappings warning
Details

In the Linux kernel, the following vulnerability has been resolved:

mmc: mmci: stm32: fix DMA API overlapping mappings warning

Turning on CONFIGDMAAPIDEBUGSG 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 adddmaentry+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: eventsfreezable mmcrescan Call trace: adddmaentry+0x234/0x2f4 debugdmamap_sg+0x198/0x350 __dmamapsgattrs+0xa0/0x110 dmamapsgattrs+0x10/0x2c sdmmcidmaprepdata+0x80/0xc0 mmciprepdata+0x38/0x84 mmcistartdata+0x108/0x2dc mmcirequest+0xe4/0x190 _mmcstartrequest+0x68/0x140 mmcstartrequest+0x94/0xc0 mmcwaitforreq+0x70/0x100 mmcsendtuning+0x108/0x1ac sdmmcexecutetuning+0x14c/0x210 mmcexecutetuning+0x48/0xec mmcsdinituhscard.part.0+0x208/0x464 mmcsdinitcard+0x318/0x89c mmcattachsd+0xe4/0x180 mmcrescan+0x244/0x320

DMA API debug brings to light leaking dma-mappings as dmamapsg and dmaunmapsg are not correctly balanced.

If an error occurs in mmcicmdirq function, only mmcidmaerror function is called and as this API is not managed on stm32 variant, dmaunmapsg is never called in this error path.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26787.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
46b723dd867d599420fb640c0eaf2a866ef721d4
Fixed
0224cbc53ba82b84affa7619b6d1b1a254bc2c53
Fixed
5ae5060e17a3fc38e54c3e5bd8abd6b1d5bfae7c
Fixed
70af82bb9c897faa25a44e4181f36c60312b71ef
Fixed
176e66269f0de327375fc0ea51c12c2f5a97e4c4
Fixed
d610a307225951929b9dff807788439454476f85
Fixed
6b1ba3f9040be5efc4396d86c9752cdc564730be

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26787.json"