CVE-2022-49122

dm ioctl: prevent potential spectre v1 gadget

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 01:55 AM UTC

Updated: June 17, 2026 at 05:17 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.9.3112.6.12 ≤ v < 4.14.2762.6.12 ≤ v < 4.19.2382.6.12 ≤ v < 4.9.3112.6.12 ≤ v < 5.10.1112.6.12 ≤ v < 5.15.342.6.12 ≤ v < 5.16.202.6.12 ≤ v < 5.17.32.6.12 ≤ v < 5.182.6.12 ≤ v < 5.4.1894.10 ≤ v < 4.14.2764.15 ≤ v < 4.19.2384.20 ≤ v < 5.4.1895.11 ≤ v < 5.15.345.16 ≤ v < 5.16.205.17 ≤ v < 5.17.35.5 ≤ v < 5.10.1111da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2.6.12

Vendor states this is fixed in 02cc46f397eb3691c56affbd5073e54f7a82ac32 (fixed)

Vendor states this is fixed in 0320bac5801b31407200227173205d017488f140 (fixed)

Vendor states this is fixed in 44e6cb3ab177faae840bb2c1ebda9a2539876184 (fixed)

Vendor states this is fixed in 58880025e3362024f6d8ea01cb0c7a5df6c84ba6 (fixed)

Vendor states this is fixed in 71c8df33fd777c7628f6fbc09b14e84806c55914 (fixed)

Vendor states this is fixed in 76c94651005f58885facf9c973007f5ea01ab01f (fixed)

Vendor states this is fixed in 7ae2c5b89da3cfaf856df880af27d3bb32a74b3d (fixed)

Vendor states this is fixed in cd9c88da171a62c4b0f1c70e50c75845969fbc18 (fixed)

Vendor states this is fixed in dd86064417de828ff2102ddc6049c829bf7585b4 (fixed)

Vendor states this is fixed in 2.6.12 (unaffected)

Vendor states this is fixed in 4.14.276 (unaffected)

Vendor states this is fixed in 4.19.238 (unaffected)