CVE-2021-46963

MEDIUM
Published Feb 27, 2024 Modified Dec 11, 2024

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93 https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538 https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56 https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053 https://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89 https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93 https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538 https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56 https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053 https://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89

Frequently Asked Questions

What is CVE-2021-46963? +
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-46963? +
CVE-2021-46963 has a CVSS v3.1 score of 5.5 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-2021-46963? +
CVE-2021-46963 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-2021-46963? +
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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