usb: gadget: midi2: Fix the jack descriptor array sizes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98770
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:30 UTC
Updated2026-10-21 13:21:45 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: usb: gadget: midi2: Fix the jack descriptor array sizes The jack in/out descriptor arrays in struct f_midi2_usb_config have the size of MAX_CABLES, which look reasonable -- but it turned out to be incorrect. Namely, the entries for those arrays are added from both inputs and outputs, hence for each loop cycle, it adds two, ended up with as twice as the expected size. This inconsistency may result in potential OOB when a large number of jacks are set up via configfs, although the max number of cables (the loop count) is limited to MAX_CABLES. For addressing it, correct the jack_ins & jack_outs array sizes to twice, MAX_CABLES * 2.

Risk And Classification

EPSS: 0.002000000 probability, percentile 0.092900000 (date 2026-10-21)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 856fa444b0982746f95e801bab0e586533eb29a3 18138d9f19cf6944ff09f5c8c0930545036fe3d0 git Not specified
CNA Linux Linux affected 856fa444b0982746f95e801bab0e586533eb29a3 8294ff75a9de23f7cc641e5e5ca31fa6ea72a574 git Not specified
CNA Linux Linux affected 856fa444b0982746f95e801bab0e586533eb29a3 87f2185423e01f113811301878f2f67eccec960d git Not specified
CNA Linux Linux affected 856fa444b0982746f95e801bab0e586533eb29a3 223c3bd02a582776d8ee47dae7b69d3258420694 git Not specified
CNA Linux Linux affected 856fa444b0982746f95e801bab0e586533eb29a3 310c2d4608d8c1a2baa57db1dfd319c5c40cf4a1 git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.56 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.10 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/18138d9f19cf6944ff09f5c8c0930545036fe3d0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/87f2185423e01f113811301878f2f67eccec960d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/310c2d4608d8c1a2baa57db1dfd319c5c40cf4a1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8294ff75a9de23f7cc641e5e5ca31fa6ea72a574 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/223c3bd02a582776d8ee47dae7b69d3258420694 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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