CVE-2022-50295 io_uring/msg_ring: Fix NULL pointer dereference in io_msg_send_fd()

In the Linux kernel, the following vulnerability has been resolved: iouring/msgring: Fix NULL pointer dereference in iomsgsendfd Syzkaller produced the below call trace: BUG: KASAN: null-ptr-deref in iomsgring+0x3cb/0x9f0 Write of size 8 at addr 0000000000000070 by task repro/16399 CPU: 0 PID:...

CVE-2022-50295 io_uring/msg_ring: Fix NULL pointer dereference in io_msg_send_fd()

In the Linux kernel, the following vulnerability has been resolved: iouring/msgring: Fix NULL pointer dereference in iomsgsendfd Syzkaller produced the below call trace: BUG: KASAN: null-ptr-deref in iomsgring+0x3cb/0x9f0 Write of size 8 at addr 0000000000000070 by task repro/16399 CPU: 0 PID:...

CVE-2022-50234

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: defer registered files gc to iouring release Instead of putting iouring's registered files in unixgc we want it to be done by iouring itself. The trick here is to consider iouring registered files for cycle...

DEBIAN-CVE-2022-50234

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: defer registered files gc to iouring release Instead of putting iouring's registered files in unixgc we want it to be done by iouring itself. The trick here is to consider iouring registered files for cycle...

UBUNTU-CVE-2022-50234

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: defer registered files gc to iouring release Instead of putting iouring's registered files in unixgc we want it to be done by iouring itself. The trick here is to consider iouring registered files for cycle...

CVE-2022-50234 io_uring/af_unix: defer registered files gc to io_uring release

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: defer registered files gc to iouring release Instead of putting iouring's registered files in unixgc we want it to be done by iouring itself. The trick here is to consider iouring registered files for cycle...

CVE-2022-50234

CVE-2022-50234 concerns the Linux kernel’s io_uring/af_unix subsystem. The vulnerability arises from deferring the garbage-collection of registered files to the io_uring release path rather than performing it via unix_gc(), coupled with using these registered files for cycle-detection without act...

CVE-2022-50234: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: defer registered files gc to iouring release Instead of putting iouring's registered files in unixgc we want it to be done by iouring itself. The trick here is to consider iouring registered files for cycle...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from not properly handling garbage collection of iouring registered files, which could lead to a memory leak...

CVE-2022-50295: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: iouring/msgring: Fix NULL pointer dereference in iomsgsendfd Syzkaller produced the below call trace: BUG: KASAN: null-ptr-deref in iomsgring+0x3cb/0x9f0 Write of size 8 at addr 0000000000000070 by task repro/16399 CPU: 0 PID:...

CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

DEBIAN-CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

UBUNTU-CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

Summary (CVE-2025-39793): In the Linux kernel io_uring/memmap path, the vulnerability arises when allocating memory where nr_pages may overflow during a shift if the size exceeds UINT_MAX. The root cause is failure to cast mr->nr_pages to size_t before shifting, which could allow overflow and ...

CVE-2025-39793 io_uring/memmap: cast nr_pages to size_t before shifting

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793 io_uring/memmap: cast nr_pages to size_t before shifting

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

io_uring/net: commit partial buffers on retry

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Linux Distros Unpatched Vulnerability : CVE-2025-38730

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/net: commit partial buffers on retry Ring provided buffers are potentially only valid within the single execution context in which they were acquired...