PT-2024-14765

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A issue has been identified in the Linux kernel related to the watch queue, where there is no overflow-check with memdup user. This could potentially lead to problems when copying...

CVE-2023-52672

In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wrwait after setting maxusage Commit c73be61cede5 "pipe: Add general notification queue support" a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in 1. The...

kernel: watch_queue: Actually free the watch

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Actually free the watch freewatch does everything barring actually freeing the watch object. Fix this by adding the missing kfree. kmemleak produces a report something like the following. Note that as an address can b...

kernel: watch_queue: Fix NULL dereference in error cleanup

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix NULL dereference in error cleanup In watchqueuesetsize, the error cleanup code doesn't take account of the fact that freepage can't handle a NULL pointer when trying to free up buffer pages that did get allocated...

SUSE CVE-2022-2959

A race condition was found in the Linux kernel's watch queue due to a missing lock in piperesizering. The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper locking when performing operations on an object. This flaw allows a local user to crash the...

AlmaLinux 9 : kpatch-patch (ALSA-2023:0348)

The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2023:0348 advisory. - A race condition was found in the Linux kernel's watch queue due to a missing lock in piperesizering. The specific flaw exists within the handling of pi...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

RHEL 9 : kernel (RHSA-2023:0334)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:0334 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: watch queue race condition can...

Exploit for Out-of-bounds Write in Linux Linux_Kernel

This is a PoC exploit for CVE-2022-0995, a heap out-of-bounds write in the watchqueue Linux kernel component. The exploit targets Ubuntu 21.10 with kernel 5.13.0-37. It uses the same technique described in a Google Security Research writeup for CVE-2021-22555. The exploit is not 100% reliable and...

RHEL 9 : kpatch-patch (RHSA-2022:9082)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:9082 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...

Ubuntu 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-5616-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5616-1 advisory. Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A...

Ubuntu 22.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-5602-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5602-1 advisory. Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A...

OESA-2022-1893 kernel security update

Security Fixes: An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flushtoldisc function. This flaw allows a local user...

Ubuntu 22.04 LTS : Linux kernel (Oracle) vulnerabilities (USN-5599-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5599-1 advisory. Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5594-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5594-1 advisory. Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow...