CVE-2022-49492
"NVMe PCI Null Pointer Dereference 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.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 17, 2025, 4:52 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49492.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2022-49492 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49492 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.121 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.283 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.318 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.247 Added Reference Type kernel.org: https://git.kernel.org/stable/c/54a4c1e47d1b2585e74920399455bd9abbfb2bd7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7a28556082d1fbcbc599baf1c24252dfc73efefc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8321b17789f614414206af07e17ce4751c95dc76 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8da2b7bdb47e94bbc4062a3978c708926bcb022c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/906c81dba8ee8057523859b5e1a2479e9fd34860 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9e649471b396fa0139d53919354ce1eace9b9a24 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/af98940dd33c9f9e1beb4f71c0a39260100e2a65 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/da42761181627e9bdc37d18368b827948a583929 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f76729662650cd7bc8f8194e057af381370349a7 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/54a4c1e47d1b2585e74920399455bd9abbfb2bd7 Added Reference https://git.kernel.org/stable/c/7a28556082d1fbcbc599baf1c24252dfc73efefc Added Reference https://git.kernel.org/stable/c/8321b17789f614414206af07e17ce4751c95dc76 Added Reference https://git.kernel.org/stable/c/8da2b7bdb47e94bbc4062a3978c708926bcb022c Added Reference https://git.kernel.org/stable/c/906c81dba8ee8057523859b5e1a2479e9fd34860 Added Reference https://git.kernel.org/stable/c/9e649471b396fa0139d53919354ce1eace9b9a24 Added Reference https://git.kernel.org/stable/c/af98940dd33c9f9e1beb4f71c0a39260100e2a65 Added Reference https://git.kernel.org/stable/c/da42761181627e9bdc37d18368b827948a583929 Added Reference https://git.kernel.org/stable/c/f76729662650cd7bc8f8194e057af381370349a7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49492 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49492
weaknesses.