CVE-2022-48771
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-48771
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48771.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-48771
- Related
- Published
- 2024-06-20T12:15:15Z
- Modified
- 2024-09-11T04:57:02.243561Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Fix stale file descriptors on failed usercopy
A failing usercopy of the fencerep object will lead to a stale entry in the file descriptor table as putunused_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
-
- https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d
- https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565
- https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c
- https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82
- https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c
- https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414
- https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516
- https://security-tracker.debian.org/tracker/CVE-2022-48771
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.103-1
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source