CVE-2022-48771 (GCVE-0-2022-48771)
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2026-05-11 18:46
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
Version: c906965dee22d5e95d0651759ba107b420212a9f
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