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

CVE-2022-50886
Not available

At a glance

Source
NVD
EPSS
EPSS 0.23 % · percentile 14 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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, free_irq() also needs be called.

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < 34ae492f8d172f0bd193c24cad588b35419ea47a ; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < 3329e7b7132ca727263fb0ee214cf52cc6dcaaad ; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < 4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff ; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < 3dbb69a0242c31ea4c9eee22b1c41b515fe509a0 ; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < aabbedcb6c9a72d12d35dc672e83f0c8064d8a61 ; affected a5eb8bbd66ccf9f169419f9652544aec771b7c57 < 6444079767b68b1fbed0e7668081146e80dcb719
Linux · Linuxaffected 3.19 ; unaffected 0 < 3.19 ; 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