scsi: sg: Allow waiting for commands to complete on removed device
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 fixed, 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.28.10 to before 2.6.29; 2.6.29.2 to before 2.6.30 | 2.6.29, 2.6.30 | Patch available | CNA |
| Linux | Linux | 2.6.30 and later | 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.28.10 to before 2.6.29; 2.6.29.2 to before 2.6.30 Fixed in 2.6.29, 2.6.30 Patch available CNA
- Linux VendorLinux Affected 2.6.30 and later Fixed in 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.9.326; 4.10 to before 4.14.291; 4.15 to before 4.19.256; 4.20 to before 5.4.211; 5.5 to before 5.10.137; 5.11 to before 5.15.61; 5.16 to before 5.18.18; 5.19 to before 5.19.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.9.326; 4.10 to before 4.14.291; 4.15 to before 4.19.256; 4.20 to before 5.4.211; 5.5 to before 5.10.137; 5.11 to before 5.15.61; 5.16 to before 5.18.18; 5.19 to before 5.19.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 2.6.29, 2.6.30
- Fix · CNA Linux (Linux) Fixed in 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0
Red Hat 1 advisory
- RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:2458 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50215
- 2026-10-03 Alias added: GHSA-5vwg-5h67-mq2j
- 2026-10-16 CISA SSVC decision points changed
References
Patch 9
- https://git.kernel.org/stable/c/bbc118acf7baf9e93c5e1314d14f481301af4d0f
- https://git.kernel.org/stable/c/f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed
- https://git.kernel.org/stable/c/ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b
- https://git.kernel.org/stable/c/f135c65085eed869d10e4e7923ce1015288618da
- https://git.kernel.org/stable/c/408bfa1489a3cfe7150b81ab0b0df99b23dd5411
- https://git.kernel.org/stable/c/8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8
- https://git.kernel.org/stable/c/35e60ec39e862159cb92923eefd5230d4a873cb9
- https://git.kernel.org/stable/c/03d8241112d5e3cccce1a01274a221099f07d2e1
- https://git.kernel.org/stable/c/3455607fd7be10b449f5135c00dc306b85dc0d21
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2022-50215 · CVE Program
- CVE-2022-50215 · NVD
- FIRST EPSS
- GHSA-5vwg-5h67-mq2j · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50215 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences