CVE-2022-50251
mmc: vub300: fix return value check of mmc_add_host()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: 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, the timer added before mmc_add_host() needs be del. And this patch fixes another missing call mmc_free_host() if usb_control_msg() fails.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 15, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 41ed46bdbd2878cd6567abe0974a445f8b1b8ec8 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 25f05d762ca5e1c685002a53dd44f68e78ca3feb 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < a46e681151bbdacdf6b89ee8c4e5bad0555142bb 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 3b29f8769d32016b2d89183db4d80c7a71b7e35e 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 3049a3b927a40d89d4582ff1033cd7953be773c7 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < afc898019e7bf18c5eb7a0ac19852fcb1b341b3c 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < c9e85979b59cb86f0a15defa8199d740e2b36b90 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 2044b2ea77945f372ef161d1bbf814e471767ff2 88095e7b473a3d9ec3b9c60429576e9cbd327c89 < 0613ad2401f88bdeae5594c30afe318e93b14676
Linux / Linux
3.0
References
git.kernel.org: https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8 git.kernel.org: https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb git.kernel.org: https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb git.kernel.org: https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e git.kernel.org: https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7 git.kernel.org: https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c git.kernel.org: https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90 git.kernel.org: https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2 git.kernel.org: https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676