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CVE-2026-46146 In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in…

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3() The convert_chmap_v3() has a loop with its increment size of cs_desc->wLength, but we forgot to validate cs_desc->wLength itself, which may lead to potential endless loop by a malformed descriptor. Add a proper size check to abort the loop for plugging the hole.

Affected products and versions

Product Affected versions Fixed in
Linux 7.1 earliest → < 7.1 7.1
Linux 7.0 earliest → < 7.0.7 7.0.7
Linux 6.18 earliest → < 6.18.30 6.18.30
Linux 6.17 No fix stated
Linux 6.12 earliest → < 6.12.88 6.12.88
Linux 6.6 earliest → < 6.6.140 6.6.140
Linux 6.1 earliest → < 6.1.175 6.1.175
Linux 5.15 earliest → < 5.15.209 5.15.209
Linux 5.10 earliest → < 5.10.258 5.10.258
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Product Affected versions Fixed in
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Versions not published

References

Timeline

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