CVE-2026-93280

Summary

In the Linux kernel, the following vulnerability has been resolved:

greybus: audio: bound the topology section sizes against the fetched size

gb_audio_gb_get_topology() fetches a topology blob of a module-supplied size, and gbaudio_tplg_parse_data() then walks it by adding the module-supplied size_dais, size_controls and size_widgets fields to form the control, widget and route section offsets. Those le32 sizes are never checked against the fetched blob, so a module reporting a small topology size but large section sizes makes the offsets point past the allocation, and parsing reads out of bounds.

Reject a topology whose section sizes do not fit within the fetched size before it is parsed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < ba86de9f7b0d7903d2df5ea2373e34d8ca3fc43eaffected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < dd5593aee0a0fb353e1164aff7b65e563fe1f232affected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < 6f764363b3173d805be11e59a8f23ecee2d420d5affected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < 52daf9de692ebac813d110eb1e677dc0e1f4a5abaffected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < d0f6eaba60705bacd9bb4ce48eab50ef3f546777affected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < c9191f2e2f35f1209eb2dc24b31129dd47b48c16affected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < cfcc5a41a9664eb68023aae4cd0d485b256bd7c7affected
LinuxLinux184992e305f1de3a3d5fa446da3a2bc76be7c54a < 33d8c7b794d2a30637c9d3fcb478f1d3222bef1eaffected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References