CVE-2023-52785: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Fix racing issue between ufshcd_mcq_abort() and ISR If command timeout happens and cq complete IRQ is raised at the same time, ufshcd_mcq_abort clears lprb->cmd and a NULL pointer deref happens in the ISR. Error log: ufshcd_abort: Device abort task at tag 18 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 pc : [0xffffffe27ef867ac] scsi_dma_unmap+0xc/0x44 lr : [0xffffffe27f1b898c] ufshcd_release_scsi_cmd+0x24/0x114

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-362 CWE-362

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.5 — 6.5.13
linux	linux_kernel	6.6 — 6.6.3
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/27900d7119c464b43cd9eac69c85884d17bae240 https://git.kernel.org/stable/c/8f15a7e3c054d960bbd1521110700450bbf798a1 https://git.kernel.org/stable/c/f84d461f33a6b27304d468d9cfb56c0cefdb4ee7 https://git.kernel.org/stable/c/27900d7119c464b43cd9eac69c85884d17bae240 https://git.kernel.org/stable/c/8f15a7e3c054d960bbd1521110700450bbf798a1 https://git.kernel.org/stable/c/f84d461f33a6b27304d468d9cfb56c0cefdb4ee7

Frequently Asked Questions

What is CVE-2023-52785? +

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Fix racing issue between ufshcd_mcq_abort() and ISR If command timeout happens and cq complete IRQ is raised at the same time, ufshcd_mcq_abort clears lprb->cmd and a NULL pointer deref happens in the ISR. Error log: ufshcd_abort: Device abort task at tag 18 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 pc : [0xffffffe27ef867ac] scsi_dma_unmap+0xc/0x44 lr : [0xffffffe27f1b898c] ufshcd_release_scsi_cmd+0x24/0x114 It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2023-52785? +

CVE-2023-52785 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-52785? +

CVE-2023-52785 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52785? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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