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medium5.5

CVE-2022-50313

In the Linux kernel, the following vulnerability has been resolved: erofs: fix order >= MAX_ORDER warning due to crafted negative i_size As syzbot reported [1]…

Impact

In the Linux kernel, the following vulnerability has been resolved: erofs: fix order >= MAX_ORDER warning due to crafted negative i_size As syzbot reported [1], the root cause is that i_size field is a signed type, and negative i_size is also less than EROFS_BLKSIZ. As a consequence, it's handled as fast symlink unexpectedly. Let's fall back to the generic path to deal with such unusual i_size. [1] https://lore.kernel.org/r/000000000000ac8efa05e7feaa1f@google.com

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.19 before 5.4.289
from 5.5 before 5.10.233
from 5.11 before 5.15.82
from 5.16 before 5.19.17
from 6.0 before 6.0.3

References