mmc: atmel-mci: fix return value check of mmc_add_host() (Linux Linux)

CVE-2022-50653
Not available

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 11 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: atmel-mci: 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(). So fix this by checking the return value and calling mmc_free_host() in the error path.

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 7d2be0749a59096a334c94dc48f43294193cb8ed < 99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2 ; affected 7d2be0749a59096a334c94dc48f43294193cb8ed < 6bb26abb92f25e582a0976091a10b539fe3796db ; affected 7d2be0749a59096a334c94dc48f43294193cb8ed < 00ac0f5f95920f003cd6ece53cdc759549b69118 ; affected 7d2be0749a59096a334c94dc48f43294193cb8ed < 1925472dec31ec061d57412b3a65a056ea24f340 ; affected 7d2be0749a59096a334c94dc48f43294193cb8ed < cc8bb436f3c842a86b9082d97933582120d180e2 ; affected 7d2be0749a59096a334c94dc48f43294193cb8ed < 85946ceb0fac20ab39cdb85333086daf0291a553
Linux · Linuxaffected 2.6.27 ; unaffected 0 < 2.6.27 ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.* ; unaffected 5.15.86 ≤ 5.15.*

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