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 the Linux kernel that stems from a race condition between the HCIMGMT flag setting and the initialization of a work queue, which could lead t...

SUSE CVE-2022-50314

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

CVE-2023-53231

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix detection of atomic context Current check for atomic context is not sufficient as zerofsdecompressqueueendio can be called under rcu lock from blkmqflushpluglist. See the stacktrace 1 In such case we should hand off th...

DEBIAN-CVE-2023-53231

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix detection of atomic context Current check for atomic context is not sufficient as zerofsdecompressqueueendio can be called under rcu lock from blkmqflushpluglist. See the stacktrace 1 In such case we should hand off th...

DEBIAN-CVE-2023-53207

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublkctrlendrecovery, if waitforcompletioninterruptible is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLKCMDENDUSERRECOVERY,...

DEBIAN-CVE-2022-50314

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

CVE-2022-50314

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

DEBIAN-CVE-2022-50294

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in lbsinitadapter When kfifoalloc failed in lbsinitadapter, cmd buffer is not released. Add free memory to processing error path...

DEBIAN-CVE-2022-50284

In the Linux kernel, the following vulnerability has been resolved: ipc: fix memory leak in initmqueuefs When setupmqsysctls failed in initmqueuefs, mqueueinodecachep is not released. In order to fix this issue, the release path is reordered...

UBUNTU-CVE-2023-53207

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublkctrlendrecovery, if waitforcompletioninterruptible is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLKCMDENDUSERRECOVERY,...

UBUNTU-CVE-2022-50314

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

CVE-2023-53251

The CVE-2023-53251 issue affects the Linux kernel (wicwifi/iwlwifi PCIe path) where a NULL pointer dereference could occur in iwl_pcie_irq_rx_msix_handler due to rxq becoming NULL when trans_pcie->rxq is NULL and entry->entry is zero; the patch adds a proper check for trans_pcie->rxq. Re...

CVE-2023-53251 wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: fix NULL pointer dereference in iwlpcieirqrxmsixhandler rxq can be NULL only when transpcie-rxq is NULL and entry-entry is zero. For the case when entry-entry is not equal to 0, rxq won't be NULL even if...

CVE-2022-50314 nbd: Fix hung when signal interrupts nbd_start_device_ioctl()

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

CVE-2022-50314 nbd: Fix hung when signal interrupts nbd_start_device_ioctl()

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix hung when signal interrupts nbdstartdeviceioctl syzbot reported hung task 1. The following program is a simplified version of the reproducer: int mainvoid int sv2, fd; if socketpairAFUNIX, SOCKSTREAM, 0, sv recvthreads =...

CVE-2023-53231 erofs: Fix detection of atomic context

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix detection of atomic context Current check for atomic context is not sufficient as zerofsdecompressqueueendio can be called under rcu lock from blkmqflushpluglist. See the stacktrace 1 In such case we should hand off th...

CVE-2023-53207 ublk: fail to recover device if queue setup is interrupted

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublkctrlendrecovery, if waitforcompletioninterruptible is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLKCMDENDUSERRECOVERY,...

CVE-2023-53207 ublk: fail to recover device if queue setup is interrupted

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublkctrlendrecovery, if waitforcompletioninterruptible is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLKCMDENDUSERRECOVERY,...

CVE-2023-53207 ublk: fail to recover device if queue setup is interrupted

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublkctrlendrecovery, if waitforcompletioninterruptible is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLKCMDENDUSERRECOVERY,...

CVE-2023-53207

CVE-2023-53207 applies to the Linux kernel ublk subsystem. The issue arises in ublk_ctrl_end_recovery: if wait_for_completion_interruptible() is interrupted by a signal, queues aren’t yet fully set up, so the kernel must fail UBLK_CMD_END_USER_RECOVERY to avoid a kernel oops. The CVSS 3.1 data in...