Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it may hold rwlock for a very long time, which may trigger kernel hang issue. This patch fixes to shrink read extent node in batches, so that, critical region of the rwlock can be shrunk to avoid its extreme long time hold.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
98e4da8ca301e062d79ae168c67e56f3c3de3ce4 to < e05d3eab90d6657bdcaa40ed129e9c767ed43188affected98e4da8ca301e062d79ae168c67e56f3c3de3ce4 to < 295b50e95e900da31ff237e46e04525fa799b2cfaffected98e4da8ca301e062d79ae168c67e56f3c3de3ce4 to < 924f7dd1e832e4e4530d14711db223d2803f7b61affected98e4da8ca301e062d79ae168c67e56f3c3de3ce4 to < 3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343affected
Linux Linux
Default version status: affected
3.8affected0 to < 3.8unaffected6.1.191 to ≤ 6.1.*unaffected6.6.66 to ≤ 6.6.*unaffected6.12.5 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected