mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() (Linux Linux)

CVE-2022-50347
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.16 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

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 c7f6558d84afe60016b8103c0737df6e376a1c2d < d7ad7278be401b09c9f9a9f522cf4c449c7fd489 ; affected c7f6558d84afe60016b8103c0737df6e376a1c2d < e598c9683fe1cf97c2b11b800cc3cee072108220 ; affected c7f6558d84afe60016b8103c0737df6e376a1c2d < 89303ddbb502c3bc8edbf864f9f85500c8fe07e9 ; affected c7f6558d84afe60016b8103c0737df6e376a1c2d < 937112e991ed25d1727d878734adcbef3b900274 ; affected c7f6558d84afe60016b8103c0737df6e376a1c2d < 7fa922c7a3dd623fd59f1af50e8896fd9ca7f654 ; affected c7f6558d84afe60016b8103c0737df6e376a1c2d < df683201c7ffbd21a806a7cad657b661c5ebfb6f
Linux · Linuxaffected 3.16 ; unaffected 0 < 3.16 ; unaffected 4.9.337 ≤ 4.9.* ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.*

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