kernel: io_uring/rw: defer fsnotify calls to task context

A locking context violation was found in the Linux kernel's iouring subsystem. The fsnotify calls were being made directly from kiocb completion context, which can execute in soft or hard IRQ context. This causes lockdep warnings when fsnotify attempts memory allocation with GFPKERNEL flags, whic...

kernel: 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:...

The vulnerability of the io_uring_show_fdinfo() function in the io_uring/fdinfo.c module of the io_uring subsystem in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the iouringshowfdinfo function in the iouring/fdinfo.c file of the iouring subsystem in the Linux kernel is related to the assignment of a null pointer due to concurrent access to resources race condition. Exploiting this vulnerability could allow an attacker to cause service...

SUSE CVE-2023-0240

There is a logic error in iouring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation. In the ioprepasyncwork function the assumption that the last iograbidentity call cannot return false is not true, and in this case the function will use...

SUSE CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

AZL-31816 CVE-2023-46862 affecting package kernel for versions less than 5.15.143.1-1

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

UBUNTU-CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

Null pointer dereference

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an iouring/fdinfo.c iouringshowfdinfo NULL pointer dereference can occur...

CVE-2023-46862

CVE-2023-46862 (Linux kernel) affects kernels up to 6.5.9. A race during SQ thread exit can trigger a NULL pointer dereference in io_uring_show_fdinfo (io_uring/fdinfo.c), potentially crashing the system or causing denial of service. The issue is tied to the io_uring subsystem and occurs under sp...

Ubuntu 23.04 : Linux kernel vulnerabilities (USN-6175-1)

The remote Ubuntu 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6175-1 advisory. Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leadi...

LSN-0098-1: Kernel Live Patch Security Notice

It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service system crash or possibly execute arbitrary code.CVE-2023-3090 It...

OESA-2023-1668 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusbdec.c has a memory leak because of the lack of a dvbfrontenddetach call.CVE-2022-45887 A division-by-zero error on some AMD processors ca...

OESA-2023-1667 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusbdec.c has a memory leak because of the lack of a dvbfrontenddetach call.CVE-2022-45887 A division-by-zero error on some AMD processors ca...

Node.js: setuid() does not drop all privileges due to io_uring

setuid did not drop all privileges in some versions of Node.js due to iouring being initialized before setuid call. This allowed privileged operations after setuid intended to drop privileges...

Unbreakable Enterprise kernel-container security update

5.4.17-2136.323.8.el8 - vhost-scsi: Fix alignment handling with windows Mike Christie Orabug: 35769318 - Revert 'vhost/scsi: support non zerocopy iovecs' Rajan Shanmugavelu Orabug: 35769318 5.4.17-2136.323.7.el8 - x86: change default to specstorebypassdisable=prctl spectrev2user=prctl Andrea...