CVE-2022-49836

Summary

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

siox: fix possible memory leak in siox_device_add()

If device_register() returns error in siox_device_add(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and sdevice is freed in siox_device_release(), set it to null in error path.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < 0a5da069603ecc3d7aa09167450235462adaa295affected
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fbaffected
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < a4b5423f88a17a36550ae8c16c46779b1ee42f4baffected
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < 5d03c2911c529ea4d6ebfec53425f1091e8d402baffected
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < d9c31e728843259209fb530c59995e4fe262699faffected
LinuxLinuxbbecb07fa0af9a41507ce06d4631fdb3b5059417 < 6e63153db50059fb78b8a8447b132664887d24e3affected
LinuxLinux4.16affected
LinuxLinux0 < 4.16unaffected
LinuxLinux4.19.267 <= 4.19.*unaffected
LinuxLinux5.4.225 <= 5.4.*unaffected
LinuxLinux5.10.156 <= 5.10.*unaffected
LinuxLinux5.15.80 <= 5.15.*unaffected
LinuxLinux6.0.10 <= 6.0.*unaffected
LinuxLinux6.1 <= *unaffected

Weaknesses

References