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high7.8

CVE-2024-47668

In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase th…

Impact

In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later. If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 5.4.284
from 5.5 before 5.10.226
from 5.11 before 5.15.167
from 5.16 before 6.1.110
from 6.2 before 6.6.51
from 6.7 before 6.10.10

Weakness classification

CWE-362

References