MediumFix available
mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.303, 4.19.270, 4.9.337, 5.10.163, 5.15.86, 5.4.229, 6.0.16, 6.1.2
- CVEs
- CVE-2022-50347
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 04:24 UTC · Revision 1
Source evidence
mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()
core-osv · Original sourcePublished 16 Sept 2025, 16:11 UTC
In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.
osv:CVE-2022-50347
Kernel
Fixed versions: 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2
Complete source record
{
"id": "1f72cffa805a4c43ba2e426c270adcd39a56c80cbbcf27dcc140ababdce04e5c",
"url": "https://osv.dev/vulnerability/CVE-2022-50347",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.",
"evidence": "osv:CVE-2022-50347",
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"modified": "2026-10-28T02:30:42.664276954Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2022-50347",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"source_id": "core-osv",
"document_id": 510247,
"published_at": "2025-09-16T16:11:39.891+00:00"
}