CVE-2022-49780

Summary

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

scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()

If device_register() fails in tcm_loop_setup_hba_bus(), 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(). The 'tl_hba' will be freed in tcm_loop_release_adapter(), so it don't need goto error label in this case.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < 41a6b8b527a5957fab41c3c05e25ad125268e2e9affected
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < 28f7ff5e7559d226e63c7c5de74eb075a83d8c53affected
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < 75205f1b47a88c3fac4f30bd7567e89b2887c7fdaffected
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < a636772988bafab89278e7bb3420d8e8eacfe912affected
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < dce0589a3faec9e2e543e97bca7e62592ec85585affected
LinuxLinux3703b2c5d041a68095cdd22380c23ce27d449ad7 < bc68e428d4963af0201e92159629ab96948f0893affected
LinuxLinux2.6.39affected
LinuxLinux0 < 2.6.39unaffected
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