CVE-2022-49190

Summary

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

kernel/resource: fix kfree() of bootmem memory again

Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxebff7d8f270d045338d9f4796014f4db429a17f9 < 3379a60f6bb4afcd9c456e340ac525ae649d3ce7affected
LinuxLinuxebff7d8f270d045338d9f4796014f4db429a17f9 < a9e88c2618d228d7a4e7e515cf30dc0d0d813f27affected
LinuxLinuxebff7d8f270d045338d9f4796014f4db429a17f9 < d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8affected
LinuxLinuxebff7d8f270d045338d9f4796014f4db429a17f9 < ab86020070999e758ce2e60c4348f20bf7ddba56affected
LinuxLinuxebff7d8f270d045338d9f4796014f4db429a17f9 < 0cbcc92917c5de80f15c24d033566539ad696892affected
LinuxLinux3.10affected
LinuxLinux0 < 3.10unaffected
LinuxLinux5.10.237 <= 5.10.*unaffected
LinuxLinux5.15.33 <= 5.15.*unaffected
LinuxLinux5.16.19 <= 5.16.*unaffected
LinuxLinux5.17.2 <= 5.17.*unaffected
LinuxLinux5.18 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References