Riskcovery

CVE-2021-47049

Drivers: hv: vmbus: Use after free in __vmbus_open()

State
Published
Severity
8.4 High
Published
Feb 28, 2024
Updated
Aug 5, 2026
Reserved
Feb 27, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

Drivers: hv: vmbus: Use after free in __vmbus_open()

The "open_info" variable is added to the &vmbus_connection.chn_msg_list, but the error handling frees "open_info" without removing it from the list. This will result in a use after free. First remove it from the list, and then free it.

Scores

CVSSScoreVectorSource
3.18.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6f3d791f300618caf82a2be0c27456edd76d5164 to before d5c7b42c9f56ca46b286daa537d181bd7f69214fAffected
  • 6f3d791f300618caf82a2be0c27456edd76d5164 to before f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560Affected
  • 6f3d791f300618caf82a2be0c27456edd76d5164 to before 2728f289b3270b0e273292b46c534421a33bbfd5Affected
  • 6f3d791f300618caf82a2be0c27456edd76d5164 to before 3e9bf43f7f7a46f21ec071cb47be92d0874c48daAffected
  • 6b32d45bd59982751beb8220e442b40b2706647fAffected
  • 4.13.9 to before 4.14Affected
LinuxLinux
  • 4.14Affected
  • before 4.14Not affected
  • 5.10.37 through 5.10.*Not affected
  • 5.11.21 through 5.11.*Not affected
  • 5.12.4 through 5.12.*Not affected
  • 5.13 and laterNot affected

References

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