UnratedFix available
mmc: toshsd: fix return value check of mmc_add_host()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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 goto error path which will call mmc_free_host(), besides, free_irq() also needs 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-2022-50886
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 10:19 UTC · Revision 1
Source evidence
mmc: toshsd: fix return value check of mmc_add_host()
core-osv · Original sourcePublished 30 Dec 2025, 12:34 UTC
In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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 goto error path which will call mmc_free_host(), besides, free_irq() also needs be called.
osv:CVE-2022-50886
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": "a166984e4b69c4518fbdcd29f3e227d4046cd4cadec6480b066d9ef283936135",
"url": "https://osv.dev/vulnerability/CVE-2022-50886",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "mmc: toshsd: fix return value check of mmc_add_host()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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 goto error path which will call mmc_free_host(), besides, free_irq() also needs be called.",
"evidence": "osv:CVE-2022-50886",
"products": [
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"name": {
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{
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{
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{
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{
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{
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{
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"events": [
{
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{
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{
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"package": {
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],
"modified": "2026-10-28T02:30:27.691231899Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/3329e7b7132ca727263fb0ee214cf52cc6dcaaad",
"https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a",
"https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0",
"https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff",
"https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719",
"https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c",
"https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61",
"https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672",
"https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50886.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-50886",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50886.json"
}
},
"related_cves": [
{
"value": "CVE-2022-50886",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 494452,
"published_at": "2025-12-30T12:34:12.782+00:00"
}