CVE-2021-47358
staging: greybus: uart: fix tty use after free
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Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14
- https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f
- https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d
- https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
- https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1
References (7)
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