CVE-2022-49492

MEDIUM Year: 2022
CVSS v3 Score
5.5
Medium
Weakness Type
CWE-476
View all →

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags In nvme_alloc_admin_tags, the admin_q can be set to an error (typically -ENOMEM) if the blk_mq_init_queue call fails to set up the queue, which is checked immediately after the call. However, when we return the error message up the stack, to nvme_reset_work the error takes us to nvme_remove_dead_ctrl() nvme_dev_disable() nvme_suspend_queue(&dev->queues[0]). Here, we only check that the admin_q is non-NULL, rather than not an error or NULL, and begin quiescing a queue that never existed, leading to bad / NULL pointer dereference.

Related Vulnerabilities

CVE-2001-1559

MEDIUM
CVSS:5.5(Medium)

The uipc system calls (uipc_syscalls.c) in OpenBSD 2.9 and 3.0 provide user mode return instead of versus rval kernel mode values to the fdrelease function, which allows local users to cause a denial ...

CWE-4762001

CVE-2010-0206

MEDIUM
CVSS:5.5(Medium)

xpdf allows remote attackers to cause a denial of service (NULL pointer dereference and crash) in the way it processes JBIG2 PDF stream objects.

CWE-4762010

CVE-2010-3079

MEDIUM
CVSS:5.5(Medium)

kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is enabled, does not properly handle interaction between mutex possession and llseek operations, which allows local users to cau...

CWE-4762010

CVE-2011-3637

MEDIUM
CVSS:5.5(Medium)

The m_stop function in fs/proc/task_mmu.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (OOPS) via vectors that trigger an m_start error.

CWE-4762011

CVE-2011-4081

MEDIUM
CVSS:5.5(Medium)

crypto/ghash-generic.c in the Linux kernel before 3.1 allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact by triggering a fail...

CWE-4762011

CVE-2011-4594

MEDIUM
CVSS:5.5(Medium)

The __sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local users to cause a denial of service (system crash) via crafted use of the sendmmsg system call, leading to an inco...

CWE-4762011