REDHAT-BUG-1308846: Null Pointer Dereference
It was reported that attempt to move page mapped by aio ring buffer to other node triggers NULL pointer dereference at tracewritebackdirtypage(), because aiofsbackingdevinfo.dev is 0.
Product bug (contains reproducer):
https://bugzilla.redhat.com/showbug.cgi?id=1306851
Upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=42cb14b110a5698ccf26ce59c4441722605a3743
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-1308846?
REDHAT-BUG-1308846 is categorized as a severe bug due to the potential for a NULL pointer dereference leading to system instability.
What software does REDHAT-BUG-1308846 affect?
REDHAT-BUG-1308846 affects the Red Hat Linux Kernel.
How do I fix REDHAT-BUG-1308846?
To resolve REDHAT-BUG-1308846, it is recommended to apply the latest patches provided by Red Hat for the Linux Kernel.
What are the symptoms of REDHAT-BUG-1308846?
The symptoms of REDHAT-BUG-1308846 may include system crashes or unexpected behavior when performing specific operations with asynchronous I/O.
Is there a workaround for REDHAT-BUG-1308846?
While there is no official workaround for REDHAT-BUG-1308846, minimizing or avoiding the use of the affected asynchronous I/O features may reduce instability.