Security tracker / CVE-2025-21976

CVE-2025-21976

fbdev: hyperv_fb: Allow graceful removal of framebuffer

References

• Debian security tracker
• cve.org

Notes

 carnil> Introduced in 68a2d20b79b1 ("drivers/video: add Hyper-V Synthetic Video Frame
 carnil> Buffer Driver"). Vulnerable versions: 3.10.

Bugs

Status

Branch	Status
upstream	released (6.14-rc7) [ea2f45ab0e53b255f72c85ccd99e2b394fc5fceb]
6.18-upstream-stable	N/A "Fixed before branching point"
6.17-upstream-stable	N/A "Fixed before branching point"
6.13-upstream-stable	released (6.13.8) [a7b583dc99c6cf4a96877017be1d08247e1ef2c7]
6.12-upstream-stable	released (6.12.20) [4545e2aa121aea304d33903099c03e29ed4fe50a]
6.6-upstream-stable	needed
6.1-upstream-stable	needed
5.10-upstream-stable	needed
sid	released (6.12.20-1)
6.12-trixie-security	N/A "Fixed before branching point"
6.1-bookworm-security	needed
5.10-bullseye-security	needed