CVE-2022-50886
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linux34ae492f8d172f0bd193c24cad588b35419ea47a, 3329e7b7132ca727263fb0ee214cf52cc6dcaaad, 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff, 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0, aabbedcb6c9a72d12d35dc672e83f0c8064d8a61, 6444079767b68b1fbed0e7668081146e80dcb719, 647e370dd0ef7e212d8d014bda748e461eab2e8c, bfd77b194c94aefbde4efc30ddf8607dd9244672, f670744a316ea983113a65313dcd387b5a992444 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 34ae492f8d172f0bd193c24cad588b35419ea47a, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 3329e7b7132ca727263fb0ee214cf52cc6dcaaad, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < aabbedcb6c9a72d12d35dc672e83f0c8064d8a61, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 6444079767b68b1fbed0e7668081146e80dcb719, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < 647e370dd0ef7e212d8d014bda748e461eab2e8c, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < bfd77b194c94aefbde4efc30ddf8607dd9244672, a5eb8bbd66ccf9f169419f9652544aec771b7c57 ≤ v < f670744a316ea983113a65313dcd387b5a992444, 3.19 | 34ae492f8d172f0bd193c24cad588b35419ea47a, 3329e7b7132ca727263fb0ee214cf52cc6dcaaad, 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff, 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0, aabbedcb6c9a72d12d35dc672e83f0c8064d8a61, 6444079767b68b1fbed0e7668081146e80dcb719, 647e370dd0ef7e212d8d014bda748e461eab2e8c, bfd77b194c94aefbde4efc30ddf8607dd9244672, f670744a316ea983113a65313dcd387b5a992444 |
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