In the Linux kernel, the following vulnerability has been...
High severity
Unreviewed
Published
Dec 27, 2024
to the GitHub Advisory Database
•
Updated Jan 14, 2025
Description
Published by the National Vulnerability Database
Dec 27, 2024
Published to the GitHub Advisory Database
Dec 27, 2024
Last updated
Jan 14, 2025
In the Linux kernel, the following vulnerability has been resolved:
NFSv4.0: Fix a use-after-free problem in the asynchronous open()
Yang Erkun reports that when two threads are opening files at the same
time, and are forced to abort before a reply is seen, then the call to
nfs_release_seqid() in nfs4_opendata_free() can result in a
use-after-free of the pointer to the defunct rpc task of the other
thread.
The fix is to ensure that if the RPC call is aborted before the call to
nfs_wait_on_sequence() is complete, then we must call nfs_release_seqid()
in nfs4_open_release() before the rpc_task is freed.
References