CVE-2022-50462

Summary

In the Linux kernel, the following vulnerability has been resolved:

MIPS: vpe-mt: fix possible memory leak while module exiting

Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, it need be freed when module exiting, call put_device() to give up reference, so that it can be freed in kobject_cleanup() when the refcount hit to 0. The vpe_device is static, so remove kfree() from vpe_device_release().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < 170e9913c2ed5cfc37c0adf0fdbd368d2d8d8168affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < 9d180e0bb21c57bd6cca2adeb672d3b522e910b5affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < 851ae5640875f06494e40002cd503b11a634c6fbaffected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < b3325a443525e3b89151879b834519b21c5e3011affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < 48d42f4464d713fbdd79f334fdcd6e5be534cc67affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < e820a8192ff68570100347855b567512aec43819affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < b191dde84e40624d5577f64db0ec922c5c0ec57caffected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < ab3d47c1fd0202821abd473ca87580faafd47847affected
LinuxLinux1fa5ae857bb14f6046205171d98506d8112dd74e < 5822e8cc84ee37338ab0bdc3124f6eec04dc232daffected
LinuxLinux2.6.30affected
LinuxLinux0 < 2.6.30unaffected
LinuxLinux4.9.337 <= 4.9.*unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References