CVE-2026-43248

Summary

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

vhost: move vdpa group bound check to vhost_vdpa

Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them.

While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbda324fd037a6b0d44da5699574ce741ca161bc4 < ddb57354634b6ba851b79da45f1de42c646f27d0affected
LinuxLinuxbda324fd037a6b0d44da5699574ce741ca161bc4 < 7441d35d14d9a3d66d925d90cb73c75394e6d454affected
LinuxLinuxbda324fd037a6b0d44da5699574ce741ca161bc4 < 406db68f9cb976a8ddfafd631197264f2307e9c9affected
LinuxLinuxbda324fd037a6b0d44da5699574ce741ca161bc4 < cd025c1e876b4e262e71398236a1550486a73edeaffected
LinuxLinux5.19affected
LinuxLinux0 < 5.19unaffected
LinuxLinux6.12.75 <= 6.12.*unaffected
LinuxLinux6.18.16 <= 6.18.*unaffected
LinuxLinux6.19.6 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References