mmc: wmt-sdmmc: fix return value check of mmc_add_host() (Linux Linux)

CVE-2022-50353
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.20 % · percentile 10 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-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 goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called.

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < 70b0620afab3c69d95a7e2dd7ceff162a21c4009 ; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < ecd6f77af3478f5223aa4011642a891b7dc91228 ; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < c7a328cea791cc2769b6417943939420913b4a46 ; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < 9bedf64dda84b29151e41591d8ded9ff0e6d336a ; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < 58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67 ; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 < b40ac3b696a9c84b36211ef0c3f5a422650c101b
Linux · Linuxaffected 3.8 ; unaffected 0 < 3.8 ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD