On Tue, 2019-05-28 at 23:28:01 UTC, Nathan Lynch wrote:
A couple of bugs in queue_hotplug_event():
1. Unchecked kmalloc result which could lead to an oops.
2. Use of GFP_KERNEL allocations in interrupt context (this code's
only caller is ras_hotplug_interrupt()).
Use kmemdup to avoid open-coding the allocation+copy and check for
failure; use GFP_ATOMIC for both allocations.
Ultimately it probably would be better to avoid or reduce allocations
in this path if possible.
Signed-off-by: Nathan Lynch <redacted>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/348ea30f51fc63ce3c7fd7dba6043e8e3ee0ef34
cheers