CVE-2022-50215
scsi: sg: Allow waiting for commands to complete on removed device
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Allow waiting for commands to complete on removed device When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before the removal. This is problematic for commands that use SG_FLAG_DIRECT_IO since the data buffer may still be in use by the kernel when userspace frees or reuses it after getting ENODEV, leading to corrupted userspace memory (in the case of READ-type commands) or corrupted data being sent to the device (in the case of WRITE-type commands). This has been seen in practice when logging out of a iscsi_tcp session, where the iSCSI driver may still be processing commands after the device has been marked for removal. Change the policy to allow userspace to wait for active sg commands even when the device is being removed. Return -ENODEV only when there are no more responses to read.
INFO
Published Date :
June 18, 2025, 11:15 a.m.
Last Modified :
Nov. 19, 2025, 12:59 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Apply the latest security updates for your system.
- Reboot the system after applying updates.
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-2022-50215.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50215 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-2022-50215
weaknesses.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50215 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50215 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.
-
Initial Analysis by [email protected]
Nov. 19, 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 NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.18.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.19 up to (excluding) 5.19.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.256 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.211 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.137 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.326 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.61 Added Reference Type kernel.org: https://git.kernel.org/stable/c/03d8241112d5e3cccce1a01274a221099f07d2e1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3455607fd7be10b449f5135c00dc306b85dc0d21 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/35e60ec39e862159cb92923eefd5230d4a873cb9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/408bfa1489a3cfe7150b81ab0b0df99b23dd5411 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bbc118acf7baf9e93c5e1314d14f481301af4d0f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f135c65085eed869d10e4e7923ce1015288618da Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 18, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Allow waiting for commands to complete on removed device When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before the removal. This is problematic for commands that use SG_FLAG_DIRECT_IO since the data buffer may still be in use by the kernel when userspace frees or reuses it after getting ENODEV, leading to corrupted userspace memory (in the case of READ-type commands) or corrupted data being sent to the device (in the case of WRITE-type commands). This has been seen in practice when logging out of a iscsi_tcp session, where the iSCSI driver may still be processing commands after the device has been marked for removal. Change the policy to allow userspace to wait for active sg commands even when the device is being removed. Return -ENODEV only when there are no more responses to read. Added Reference https://git.kernel.org/stable/c/03d8241112d5e3cccce1a01274a221099f07d2e1 Added Reference https://git.kernel.org/stable/c/3455607fd7be10b449f5135c00dc306b85dc0d21 Added Reference https://git.kernel.org/stable/c/35e60ec39e862159cb92923eefd5230d4a873cb9 Added Reference https://git.kernel.org/stable/c/408bfa1489a3cfe7150b81ab0b0df99b23dd5411 Added Reference https://git.kernel.org/stable/c/8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8 Added Reference https://git.kernel.org/stable/c/bbc118acf7baf9e93c5e1314d14f481301af4d0f Added Reference https://git.kernel.org/stable/c/ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b Added Reference https://git.kernel.org/stable/c/f135c65085eed869d10e4e7923ce1015288618da Added Reference https://git.kernel.org/stable/c/f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed