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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2021-47358

staging: greybus: uart: fix tty use after free

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a18e15175708d39abbe9746ddc3479466b7800c3 to < 92b67aaafb7c449db9f0c3dcabc0ff967cb3a42daffected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < 64062fcaca8872f063ec9da011e7bf30470be33faffected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < a5cfd51f6348e8fd7531461366946039c29c7e69affected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < 4dc56951a8d9d61d364d346c61a5f1d70b4f5e14affected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < b9e697e60ce9890e9258a73eb061288e7d68e5e6affected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < 9872ff6fdce8b229f01993b611b5d1719cb70ff1affected
  • a18e15175708d39abbe9746ddc3479466b7800c3 to < 92dc0b1f46e12cfabd28d709bb34f7a39431b44faffected

Linux Linux

Default version status: affected

  • 4.9affected
  • 0 to < 4.9unaffected
  • 4.9.285 to ≤ 4.9.*unaffected
  • 4.14.249 to ≤ 4.14.*unaffected
  • 4.19.209 to ≤ 4.19.*unaffected
  • 5.4.150 to ≤ 5.4.*unaffected
  • 5.10.70 to ≤ 5.10.*unaffected
  • 5.14.9 to ≤ 5.14.*unaffected
  • 5.15 to ≤ *unaffected

References