5.5

CVE-2022-50347: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()

Modified
AliasesUBUNTU-CVE-2022-50347DEBIAN-CVE-2022-50347
Published 16-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50347 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
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 6 · Related 5
RHSA-2024:9315SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1SUSE-SU-2026:0473-1

Timeline

  1. 16-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: 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 calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% 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

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu120 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)
Linux2 products
  • linux≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < d7ad7278be401b09c9f9a9f522cf4c449c7fd489 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < e598c9683fe1cf97c2b11b800cc3cee072108220 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < 89303ddbb502c3bc8edbf864f9f85500c8fe07e9 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < 937112e991ed25d1727d878734adcbef3b900274 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < 7fa922c7a3dd623fd59f1af50e8896fd9ca7f654 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < df683201c7ffbd21a806a7cad657b661c5ebfb6f | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < 1491667d5450778a265eddddd294219acfd648cb | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < a522e26a20a43dcfbef9ee9f71ed803290e852b0 | ≥ c7f6558d84afe60016b8103c0737df6e376a1c2d, < fc38a5a10e9e5a75eb9189854abeb8405b214cc9 | 3.16
  • linux_kernel≥ 3.16, < 4.9.337 | ≥ 4.10, < 4.14.303 | ≥ 4.15, < 4.19.270 | ≥ 4.20, < 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.86 | ≥ 5.16, < 6.0.16 | ≥ 6.1, < 6.1.2
Debian1 product
  • linux< 6.1.4-1

3 vendors · 123 products

References

13 links
Show all 13 references