| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF
x86 implements page attribute modification using its Change Page
Attributes (CPA) mechanism.
This tracks properties of ranges such as cache mode through x86 page
attributes, and as part of that logic manipulates kernel page tables.
Since commit:
41d88484c71c ("x86/mm/pat: restore large ROX pages after fragmentation")
ranges of kernel page table entries can be collapsed into
huge page table entries as part of this logic.
As part of this collapse, it frees the page tables which the collapsed
entries previously pointed to, and it does so without any relevant locks
being held to preclude concurrent kernel page table walkers.
The only way this code can be reached is if CPA_COLLAPSE is specified, and
this is only set in set_memory_rox() via:
set_memory_rox()
-> change_page_attr_set_clr()
-> cpa_flush()
-> cpa_collapse_large_pages()
Notable users of this are execmem and BPF when manipulating executable
mappings.
However, this is problematic for ptdump as it walks ranges it does not own
and thus runs the risk of a use-after-free on page tables freed underneath
it.
In addition, concurrent CPA collapse operations are possible which can also
cause races.
Resolve the issue by acquiring the mmap write lock on init_mm across the
whole operation.
It is safe to acquire a sleeping lock as all the callers invoke
set_memory_rox() from process context and in any case,
change_page_attr_set_clr() calls vm_unmap_alias() which ultimately takes a
mutex, disallowing atomic context here. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where improper cleanup of reference counts during error paths could lead to a use-after-free condition. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, and information disclosure. |
| In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read handle after reading a FIN, which invalidates the handle under proxygen's WebTransport API. A remote peer can trigger the stale use by opening a data stream that names an unknown track alias and carries the FIN in the same write. |
| In proxygen from v2024.10.28.00 until v2026.09.28.00, WebTransportImpl::terminateSessionStreams (WebTransportImpl::destroy in releases before v2025.08.18.00) failed to unregister read callbacks for streams that were no longer open before destroying them. The transport could then invoke a read callback that had been freed. |
| In proxygen from v2024.10.28.00 until v2026.09.28.00, the HTTPTransaction::onWebTransportUniStream and HTTPTransaction::onWebTransportBidiStream APIs could return stream handles that the stream handler had already freed. HQSession then installed those handles as transport read callbacks, which could lead to use of freed memory. |
| NVIDIA GPU Display Driver for Linux contains a vulnerability where an unprivileged user could cause a use-after-free condition by issuing a sequence of driver commands. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service and information disclosure. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by issuing a sequence of driver commands. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, and information disclosure. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by issuing a sequence of driver commands. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, and information disclosure. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by issuing a sequence of driver commands. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, data tampering, and information disclosure. |
| NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer where an attacker could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, or escalation of privileges, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Linux contains a vulnerability where an unprivileged user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering. |
| A remote, unauthenticated TLS client can make a server crash or call
through a freed pointer if its sni_callback assigns a different context to
SSLSocket.context (the documented way to select a certificate per server
name) and nothing else keeps the original ssl.SSLContext alive. Typical
cases are servers that create an SSLContext per connection or replace it
while connections are open; servers that wrap their listening socket with
it are not affected.
Mitigation: keep a reference to every SSLContext that sets sni_callback for
the lifetime of the server. TLS clients are not affected. |
| The NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode driver through which a user might trigger a use-after-free condition. Successful exploitation of this issue could lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the open-source kernel module Resource Server where an unprivileged local user could cause a use-after-free through a missing self-reference guard in the map cleanup path. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Linux contains a vulnerability in the open-source kernel module event delivery path where an unprivileged local user could cause a use-after-free through a race between asynchronous event delivery and file close. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel module where an attacker could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering. |
| NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where a user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering. |
| A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory handling and result in memory corruption. |
| NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where an unprivileged user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering. |
