CVE-2022-48771
drm/vmwgfx: Fix stale file descriptors on failed usercopy
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
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.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-06-20 CVE Reserved
- 2024-06-20 CVE Published
- 2024-12-19 CVE Updated
- 2025-03-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/c906965dee22d5e95d0651759ba107b420212a9f | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-48771 | 2022-05-10 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2293337 | 2022-05-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 4.14.264 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.14.264" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 4.19.227 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.19.227" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.4.175 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.4.175" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.10.95 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.10.95" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.15.18 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.15.18" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.16.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.16.4" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.17 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.17" | en |
Affected
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