CVE-2022-48790

In the Linux kernel, the following vulnerability has been resolved: nvme: fix a possible use-after-free in controller reset during load Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl readiness for AER submission. This may lead to a use-after-free condition that was observed with nvme-tcp. The race condition may happen in the following scenario: 1. driver executes its reset_ctrl_work 2. -> nvme_stop_ctrl - flushes ctrl async_event_work 3. ctrl sends AEN which is received by the host, which in turn schedules AEN handling 4. teardown admin queue (which releases the queue socket) 5. AEN processed, submits another AER, calling the driver to submit 6. driver attempts to send the cmd ==> use-after-free In order to fix that, add ctrl state check to validate the ctrl is actually able to accept the AER submission. This addresses the above race in controller resets because the driver during teardown should: 1. change ctrl state to RESETTING 2. flush async_event_work (as well as other async work elements) So after 1,2, any other AER command will find the ctrl state to be RESETTING and bail out without submitting the AER.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

07 Aug 2024, 20:06

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d - () https://git.kernel.org/stable/c/0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d - Patch
References () https://git.kernel.org/stable/c/e043fb5a0336ee74614e26f0d9f36f1f5bb6d606 - () https://git.kernel.org/stable/c/e043fb5a0336ee74614e26f0d9f36f1f5bb6d606 - Patch
References () https://git.kernel.org/stable/c/0ead57ceb21bbf15963b4874c2ac67143455382f - () https://git.kernel.org/stable/c/0ead57ceb21bbf15963b4874c2ac67143455382f - Patch
References () https://git.kernel.org/stable/c/70356b756a58704e5c8818cb09da5854af87e765 - () https://git.kernel.org/stable/c/70356b756a58704e5c8818cb09da5854af87e765 - Patch
References () https://git.kernel.org/stable/c/a25e460fbb0340488d119fb2e28fe3f829b7417e - () https://git.kernel.org/stable/c/a25e460fbb0340488d119fb2e28fe3f829b7417e - Patch
References () https://git.kernel.org/stable/c/9e956a2596ae276124ef0d96829c013dd0faf861 - () https://git.kernel.org/stable/c/9e956a2596ae276124ef0d96829c013dd0faf861 - Patch
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.0
CWE CWE-416

16 Jul 2024, 13:43

Type Values Removed Values Added
New CVE

Information

Published : 2024-07-16 12:15

Updated : 2024-08-07 20:06


NVD link : CVE-2022-48790

Mitre link : CVE-2022-48790


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free