CVE-2022-50769

Summary

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

mmc: mxcmmc: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path.

So fix this by checking the return value and goto error path which will call mmc_free_host().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < 5f35c038c9f4d258b3cf77885a2730f1417d63e7affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < 1cf0c1e58738b97e2de207846105b6a5d46622eeaffected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < b8bdb3fd13d5cd1e86d22fd3f803a742fd88af89affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < 32eb502c972dfc34413c9147418b3d94d870c2b8affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < 3904eb97bb78fdca3e16d30a38ce5697b9686110affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < 2d496050ded83b13b16f05e1fc0329b0210d2493affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < d37474ab9a79149075f0823315c6d45dd983a78caffected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < d2ead18bc7cc166220cab5a744a05c5b69431a12affected
LinuxLinuxd96be879ff469759af6d7fcebdb66237c18da6f8 < cde600af7b413c9fe03e85c58c4279df90e91d13affected
LinuxLinux2.6.29affected
LinuxLinux0 < 2.6.29unaffected
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