CVEvulnerability
CVE-2022-49122
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-02-26
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
dm ioctl: prevent potential spectre v1 gadget
It appears like cmd could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents of kernel memory
from being leaked to userspace via speculative execution by using
array_index_nospec.
Affected configurations
• linux linux kernel (< 4.9.311)
• linux linux kernel (>= 4.10 < 4.14.276)
• linux linux kernel (>= 4.15 < 4.19.238)
• linux linux kernel (>= 4.20 < 5.4.189)
• linux linux kernel (>= 5.5 < 5.10.111)
• linux linux kernel (>= 5.11 < 5.15.34)
• linux linux kernel (>= 5.16 < 5.16.20)
• linux linux kernel (>= 5.17 < 5.17.3)
References
- https://git.kernel.org/stable/c/02cc46f397eb3691c56affbd5073e54f7a82ac32 Patch
- https://git.kernel.org/stable/c/0320bac5801b31407200227173205d017488f140 Patch
- https://git.kernel.org/stable/c/44e6cb3ab177faae840bb2c1ebda9a2539876184 Patch
- https://git.kernel.org/stable/c/58880025e3362024f6d8ea01cb0c7a5df6c84ba6 Patch
- https://git.kernel.org/stable/c/71c8df33fd777c7628f6fbc09b14e84806c55914 Patch
- https://git.kernel.org/stable/c/76c94651005f58885facf9c973007f5ea01ab01f Patch
- https://git.kernel.org/stable/c/7ae2c5b89da3cfaf856df880af27d3bb32a74b3d Patch
- https://git.kernel.org/stable/c/cd9c88da171a62c4b0f1c70e50c75845969fbc18 Patch
- https://git.kernel.org/stable/c/dd86064417de828ff2102ddc6049c829bf7585b4 Patch