In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix stale file descriptors on failed usercopy A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won’t release it. This enables userland to refer to a dangling ‘file’ object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 5.16.7-1 | linux_5.16.7-1_all.deb |
Debian | 11 | all | linux | < 5.10.103-1 | linux_5.10.103-1_all.deb |
Debian | 999 | all | linux | < 5.16.7-1 | linux_5.16.7-1_all.deb |
Debian | 13 | all | linux | < 5.16.7-1 | linux_5.16.7-1_all.deb |