CVE-2022-50846

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Source
https://cve.org/CVERecord?id=CVE-2022-50846
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50846.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-50846
Downstream
Related
Published
2025-12-30T12:11:03.286Z
Modified
2026-03-20T11:47:39.342554Z
Summary
mmc: via-sdmmc: fix return value check of mmc_add_host()
Details

In the Linux kernel, the following vulnerability has been resolved:

mmc: via-sdmmc: fix return value check of mmcaddhost()

mmcaddhost() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmcallochost() is leaked. 2. In the remove() path, mmcremovehost() 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 mmcfreehost().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50846.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f0bf7f61b8405224bc52fc9a3ccd167a68126e00
Fixed
076bcd2c93e16b05c10564e299d6e5d26a766d00
Fixed
12b8e81b77c05c658efd9cde3585bbd65ae39b59
Fixed
95025a8dd0ec015872f6c16473fe04d6264e68ca
Fixed
f59ef2a47a228e51322ad76752a55a8917c56e38
Fixed
63400da6cd37a9793c19bb6aed7131b58b975a04
Fixed
0959cc1685eb19774300d43ef25e318b457b156b
Fixed
0ec94795114edc7e24ec71849dce42bfa61dafa3
Fixed
ba91b413983a9235792523c6b9f7ba2586c4d75d
Fixed
e4e46fb61e3bb4628170810d3f2b996b709b90d9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50846.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.31
Fixed
4.9.337
Type
ECOSYSTEM
Events
Introduced
4.10.0
Fixed
4.14.303
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.270
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.229
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.163
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.86
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.0.16
Type
ECOSYSTEM
Events
Introduced
6.1.0
Fixed
6.1.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50846.json"