CVE-2022-50215

MEDIUM EPSS 9.3%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
9.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.9.326
linuxlinux_kernel*≥4.10  –  <4.14.291
linuxlinux_kernel*≥4.15  –  <4.19.256
linuxlinux_kernel*≥4.20  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.137
linuxlinux_kernel*≥5.11  –  <5.15.61
linuxlinux_kernel*≥5.16  –  <5.18.18
linuxlinux_kernel*≥5.19  –  <5.19.2

References 9

  • git.kernel.org https://git.kernel.org/stable/c/03d8241112d5e3cccce1a01274a221099f07d2e1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3455607fd7be10b449f5135c00dc306b85dc0d21
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35e60ec39e862159cb92923eefd5230d4a873cb9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/408bfa1489a3cfe7150b81ab0b0df99b23dd5411
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbc118acf7baf9e93c5e1314d14f481301af4d0f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f135c65085eed869d10e4e7923ce1015288618da
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/03d8241112d5e3cccce1a01274a221099f07d2e1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3455607fd7be10b449f5135c00dc306b85dc0d21
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35e60ec39e862159cb92923eefd5230d4a873cb9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/408bfa1489a3cfe7150b81ab0b0df99b23dd5411
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbc118acf7baf9e93c5e1314d14f481301af4d0f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f135c65085eed869d10e4e7923ce1015288618da
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed
    Patch