CVE-2021-47358 (GCVE-0-2021-47358)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:44 – Updated: 2025-05-04 07:09
VLAI?
Title
staging: greybus: uart: fix tty use after free
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < 92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < 64062fcaca8872f063ec9da011e7bf30470be33f (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < a5cfd51f6348e8fd7531461366946039c29c7e69 (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < 4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < b9e697e60ce9890e9258a73eb061288e7d68e5e6 (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < 9872ff6fdce8b229f01993b611b5d1719cb70ff1 (git)
Affected: a18e15175708d39abbe9746ddc3479466b7800c3 , < 92dc0b1f46e12cfabd28d709bb34f7a39431b44f (git)
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    Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 4.9.285 , ≤ 4.9.* (semver)
Unaffected: 4.14.249 , ≤ 4.14.* (semver)
Unaffected: 4.19.209 , ≤ 4.19.* (semver)
Unaffected: 5.4.150 , ≤ 5.4.* (semver)
Unaffected: 5.10.70 , ≤ 5.10.* (semver)
Unaffected: 5.14.9 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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