mailbox: zynq-ipi: fix error handling while device_register() fails (Linux Linux)

CVE-2022-50672
Not available

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register() fails, it has two issues: 1. The name allocated by dev_set_name() is leaked. 2. The parent of device is not NULL, device_unregister() is called in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because of removing not added device. Call put_device() to give up the reference, so the name is freed in kobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes() to avoid null-ptr-deref.

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < b3a5c76f61e2b380e29dfc6705854ca1ee85501d ; affected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < a39b4de0804f9fe0ae911b359ffd4afe7d9d933b ; affected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < 4f05d8e2fb3ab702c2633a74571e1b31cb579985 ; affected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a ; affected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < 3fcf079958c00d83c51e4f250abf2c77fe9cc1b9 ; affected 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < a6792a0cdef0b1c2d77920246283a72537e60e94
Linux · Linuxaffected 5.1 ; unaffected 0 < 5.1 ; unaffected 5.4.229 ≤ 5.4.* ; unaffected 5.10.163 ≤ 5.10.* ; unaffected 5.15.86 ≤ 5.15.* ; unaffected 6.0.16 ≤ 6.0.*

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