Log in Start free

Vulnerability · Published Jun 20, 2024 · Assigned by Linux

CVE-2022-48771drm/vmwgfx: Fix stale file descriptors on failed usercopy

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 88.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.16.7-1DEBIAN-CVE-2022-48771
Debian:13linux5.16.7-1DEBIAN-CVE-2022-48771
Debian:14linux5.16.7-1DEBIAN-CVE-2022-48771
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-48771
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-48771
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-48771

Affected products (as reported)

VendorProductVersions
Linux Linux c906965dee22d5e95d0651759ba107b420212a9f – before e8d092a62449dcfc73517ca43963d2b8f44d0516c906965dee22d5e95d0651759ba107b420212a9f – before 0008a0c78fc33a84e2212a7c04e6b21a36ca6f4dc906965dee22d5e95d0651759ba107b420212a9f – before 84b1259fe36ae0915f3d6ddcea6377779de48b82c906965dee22d5e95d0651759ba107b420212a9f – before ae2b20f27732fe92055d9e7b350abc5cdf3e2414c906965dee22d5e95d0651759ba107b420212a9f – before 6066977961fc6f437bc064f628cf9b0e4571c56cc906965dee22d5e95d0651759ba107b420212a9f – before 1d833b27fb708d6fdf5de9f6b3a8be4bd4321565c906965dee22d5e95d0651759ba107b420212a9f – before a0f90c8815706981c483a652a6aefca51a5e191c
Linux Linux 4.14

References