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

Deferred
AliasesUBUNTU-CVE-2022-50846DEBIAN-CVE-2022-50846
Published 30-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50846 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.9% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
RHSA-2024:9315SUSE-SU-2026:0263-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1SUSE-SU-2026:0617-1

Timeline

  1. 30-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

Risk metrics not yet published.

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu121 products
  • linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 076bcd2c93e16b05c10564e299d6e5d26a766d00 | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 12b8e81b77c05c658efd9cde3585bbd65ae39b59 | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 95025a8dd0ec015872f6c16473fe04d6264e68ca | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < f59ef2a47a228e51322ad76752a55a8917c56e38 | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 63400da6cd37a9793c19bb6aed7131b58b975a04 | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 0959cc1685eb19774300d43ef25e318b457b156b | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < 0ec94795114edc7e24ec71849dce42bfa61dafa3 | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < ba91b413983a9235792523c6b9f7ba2586c4d75d | ≥ f0bf7f61b8405224bc52fc9a3ccd167a68126e00, < e4e46fb61e3bb4628170810d3f2b996b709b90d9 | 2.6.31

3 vendors · 123 products

References

13 links
Show all 13 references