9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN

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SUSE CVE-2022-49765

In the Linux kernel, the following vulnerability has been resolved: net/9p: use a dedicated spinlock for transfd Shamelessly copying the explanation from Tetsuo Handa's suggested patch1 slightly reworded: syzbot is reporting inconsistent lock state in p9reqput2, for p9tagremove from p9reqput from...

UBUNTU-CVE-2022-49765

In the Linux kernel, the following vulnerability has been resolved: net/9p: use a dedicated spinlock for transfd Shamelessly copying the explanation from Tetsuo Handa's suggested patch1 slightly reworded: syzbot is reporting inconsistent lock state in p9reqput2, for p9tagremove from p9reqput from...

PT-2022-36529 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.14.300 Description: The issue is related to the 9p/trans fd functionality, where it does not always use O NONBLOCK for read/write operations. The actual impact and potential for attack have not been proven ye...