medium
4.9
CWE
908 200
Advisory Published
CVE Published
CVE Published
Updated

CVE-2022-0494: Infoleak

First published: Tue Jan 11 2022(Updated: )

A flaw was found in the linux kernel in scsi_ioctl() function. If the parameter cmd is SCSI_IOCTL_SEND_COMMAND, the function scsi_ioctl will call sg_scsi_ioctl to further process. In function sg_scsi_ioctl, it creates a scsi request and calls blk_rq_map_kern to allocate the internal buffer of this request, but the internal buffer doesn't get zeroed properly. Then this request will be sent to the disk driver, but the disk driver doesn't fill anything into it. Finally, the internal buffer's content is copied to the user buffer which is specified by the parameter sic-&gt;data of sg_scsi_ioctl. Reference: <a href="https://lore.kernel.org/all/20220216084038.15635-1-tcs.kernel@gmail.com/">https://lore.kernel.org/all/20220216084038.15635-1-tcs.kernel@gmail.com/</a>

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-372.32.1.rt7.189.el8_6
0:4.18.0-372.32.1.rt7.189.el8_6
redhat/kernel<0:4.18.0-372.32.1.el8_6
0:4.18.0-372.32.1.el8_6
redhat/kernel-rt<0:4.18.0-305.62.1.rt7.134.el8_4
0:4.18.0-305.62.1.rt7.134.el8_4
redhat/kernel<0:4.18.0-305.62.1.el8_4
0:4.18.0-305.62.1.el8_4
redhat/kernel<0:5.14.0-70.22.1.el9_0
0:5.14.0-70.22.1.el9_0
redhat/kernel-rt<0:5.14.0-70.22.1.rt21.94.el9_0
0:5.14.0-70.22.1.rt21.94.el9_0
redhat/kernel<5.17
5.17
Linux Kernel<5.17
Linux Kernel=5.17
Linux Kernel=5.17-rc1
Linux Kernel=5.17-rc2
Linux Kernel=5.17-rc3
Linux Kernel=5.17-rc4
Debian Linux=9.0
Debian Linux=10.0
Debian Linux=11.0
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-0494?

    The severity of CVE-2022-0494 is classified as high due to its potential to lead to privilege escalation.

  • How do I fix CVE-2022-0494?

    To fix CVE-2022-0494, update your kernel to one of the following versions: 0:4.18.0-372.32.1.rt7.189.el8_6, 0:4.18.0-372.32.1.el8_6, 0:5.14.0-70.22.1.el9_0, or any version above 5.17.

  • What systems are affected by CVE-2022-0494?

    CVE-2022-0494 affects Linux kernel versions up to 5.17 and specific Red Hat and Debian kernel packages.

  • Can CVE-2022-0494 lead to remote code execution?

    CVE-2022-0494 does not directly lead to remote code execution but may allow privilege escalation, which can be exploited in conjunction with other vulnerabilities.

  • Is there a workaround for CVE-2022-0494?

    There are no specific workarounds for CVE-2022-0494; the best mitigation is to apply the recommended updates to affected kernel versions.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203