Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Make it so that a waiting process can be aborted When sendmsg() creates an rxrpc call, it queues it to wait for a connection and channel to be assigned and then waits before it can start shovelling data as the encrypted DATA packet content includes a summary of the connection parameters. However, sendmsg() may get interrupted before a connection gets assigned and further sendmsg() calls will fail with EBUSY until an assignment is made. Fix this so that the call can at least be aborted without failing on EBUSY. We have to be careful here as sendmsg() mustn't be allowed to start the call timer if the call doesn't yet have a connection assigned as an oops may follow shortly thereafter.

Affected Products 2

References 3

• git.kernel.org https://git.kernel.org/stable/c/0eb362d254814ce04848730bf32e75b8ee1a4d6c
  Patch
• git.kernel.org https://git.kernel.org/stable/c/7161cf61c64e9e9413d790f2fa2b9dada71a2249
  Patch
• git.kernel.org https://git.kernel.org/stable/c/876d96faacbc407daf4978d7ec95051b68f5344a
  Patch

Remediation

• git.kernel.org https://git.kernel.org/stable/c/0eb362d254814ce04848730bf32e75b8ee1a4d6c
  Patch
• git.kernel.org https://git.kernel.org/stable/c/7161cf61c64e9e9413d790f2fa2b9dada71a2249
  Patch
• git.kernel.org https://git.kernel.org/stable/c/876d96faacbc407daf4978d7ec95051b68f5344a
  Patch