Not yet scoredPublished Dec 30, 2025

CVE-2022-50846mmc: via-sdmmc: fix return value check of mmc_add_host()

Updated under an hour ago (Oct 27, 2026, 3:40 AM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 076bcd2c93e16b05c10564e299d6e5d26a766d00; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 12b8e81b77c05c658efd9cde3585bbd65ae39b59; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 95025a8dd0ec015872f6c16473fe04d6264e68ca; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before f59ef2a47a228e51322ad76752a55a8917c56e38; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 63400da6cd37a9793c19bb6aed7131b58b975a04; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 0959cc1685eb19774300d43ef25e318b457b156b; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 0ec94795114edc7e24ec71849dce42bfa61dafa3; from f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before ba91b413983a9235792523c6b9f7ba2586c4d75d; and 1 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/076bcd2c93e16b05c10564e299d6e5d26a766d00
https://git.kernel.org/stable/c/12b8e81b77c05c658efd9cde3585bbd65ae39b59
https://git.kernel.org/stable/c/95025a8dd0ec015872f6c16473fe04d6264e68ca
https://git.kernel.org/stable/c/f59ef2a47a228e51322ad76752a55a8917c56e38
https://git.kernel.org/stable/c/63400da6cd37a9793c19bb6aed7131b58b975a04
https://git.kernel.org/stable/c/0959cc1685eb19774300d43ef25e318b457b156b
https://git.kernel.org/stable/c/0ec94795114edc7e24ec71849dce42bfa61dafa3
https://git.kernel.org/stable/c/ba91b413983a9235792523c6b9f7ba2586c4d75d
https://git.kernel.org/stable/c/e4e46fb61e3bb4628170810d3f2b996b709b90d9

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.