CVEvulnerability
CVE-2021-47049
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2024-02-28
- Last modified
- 2026-08-04
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.4 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
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.
Affected configurations
• linux linux kernel (>= 4.14 < 5.10.37)
• linux linux kernel (>= 5.11 < 5.11.21)
• linux linux kernel (>= 5.12 < 5.12.4)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/2728f289b3270b0e273292b46c534421a33bbfd5 Patch
- https://git.kernel.org/stable/c/3e9bf43f7f7a46f21ec071cb47be92d0874c48da Patch
- https://git.kernel.org/stable/c/d5c7b42c9f56ca46b286daa537d181bd7f69214f Patch
- https://git.kernel.org/stable/c/f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560 Patch
- https://git.kernel.org/stable/c/2728f289b3270b0e273292b46c534421a33bbfd5 Patch
- https://git.kernel.org/stable/c/3e9bf43f7f7a46f21ec071cb47be92d0874c48da Patch
- https://git.kernel.org/stable/c/d5c7b42c9f56ca46b286daa537d181bd7f69214f Patch
- https://git.kernel.org/stable/c/f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560 Patch