NetSight
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high7.8

CVE-2022-50234

In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: defer registered files gc to io_uring release Instead of putting io_uring…

Impact

In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: defer registered files gc to io_uring release Instead of putting io_uring's registered files in unix_gc() we want it to be done by io_uring itself. The trick here is to consider io_uring registered files for cycle detection but not actually putting them down. Because io_uring can't register other ring instances, this will remove all refs to the ring file triggering the ->release path and clean up with io_ring_ctx_free(). [axboe: add kerneldoc comment to skb, fold in skb leak fix]

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.1 before 5.4.220
from 5.5 before 5.10.150
from 5.11 before 5.15.75
from 5.16 before 5.19.17
from 6.0 before 6.0.3

References