CVE-2021-47474

comedi: vmk80xx: fix bulk-buffer overflow

HIGH

7.8

CVSS Score

Published: May 22, 2024 at 08:19 AM UTC

Updated: June 17, 2026 at 04:17 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.

Affected

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

Linux Kernel · Linux

95%

2.6.31 ≤ v < 4.14.2552.6.31 ≤ v < 4.19.2172.6.31 ≤ v < 4.4.2922.6.31 ≤ v < 4.9.2902.6.31 ≤ v < 5.10.792.6.31 ≤ v < 5.14.182.6.31 ≤ v < 5.15.22.6.31 ≤ v < 5.162.6.31 ≤ v < 5.4.1594.10 ≤ v < 4.14.2554.15 ≤ v < 4.19.2174.20 ≤ v < 5.4.1594.5 ≤ v < 4.9.2905.11 ≤ v < 5.14.185.15 ≤ v < 5.15.25.5 ≤ v < 5.10.792.6.31985cafccbf9b7f862aa1c5ee566801e18b5161fb

Vendor states this is fixed in 063f576c43d589a4c153554b681d32b3f8317c7b (fixed)

Vendor states this is fixed in 0866dcaa828c21bc2f94dac00e086078f11b5772 (fixed)

Vendor states this is fixed in 1ae4715121a57bc6fa29fd992127b01907f2f993 (fixed)

Vendor states this is fixed in 47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 (fixed)

Vendor states this is fixed in 78cdfd62bd54af615fba9e3ca1ba35de39d3871d (fixed)

Vendor states this is fixed in 7b0e356189327287d0eb98ec081bd6dd97068cd3 (fixed)

Vendor states this is fixed in 7cfb35db607760698d299fd1cf7402dfa8f09973 (fixed)

Vendor states this is fixed in b7fd7f3387f070215e6be341e68eb5c087eeecc0 (fixed)

Vendor states this is fixed in e0e6a63fd97ad95fe05dfd77268a1952551e11a7 (fixed)

Vendor states this is fixed in 2.6.31 (unaffected)

Vendor states this is fixed in 4.14.255 (unaffected)

Vendor states this is fixed in 4.19.217 (unaffected)

Vendor states this is fixed in 4.4.292 (unaffected)

Vendor states this is fixed in 4.9.290 (unaffected)

Vendor states this is fixed in 5.10.79 (unaffected)

Vendor states this is fixed in 5.14.18 (unaffected)

Vendor states this is fixed in 5.15.2 (unaffected)

Vendor states this is fixed in 5.16 (unaffected)

Vendor states this is fixed in 5.4.159 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references