Vulnerabilities > CVE-2021-47358 - Use After Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14
- https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14
- https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f
- https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f
- https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d
- https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d
- https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
- https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
- https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1
- https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1
- https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69
- https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69
- https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6
- https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6