CVE-2022-50215: scsi: sg: Allow waiting for commands to complete on removed device
Vulnerability summary
CVE-2022-50215 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.8% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 7Timeline
- 18-06-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
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 metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.25% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 4.15.0-197.208 | < 5.4.0-132.148 | < 5.15.0-53.59
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1143.155 | < 5.4.0-1089.97 | < 5.15.0-1023.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < bbc118acf7baf9e93c5e1314d14f481301af4d0f | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < f135c65085eed869d10e4e7923ce1015288618da | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < 408bfa1489a3cfe7150b81ab0b0df99b23dd5411 | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < 8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8 | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < 35e60ec39e862159cb92923eefd5230d4a873cb9 | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < 03d8241112d5e3cccce1a01274a221099f07d2e1 | ≥ c6517b7942fad663cc1cf3235cbe4207cf769332, < 3455607fd7be10b449f5135c00dc306b85dc0d21 | a0fe972f78eaaf352d593f9ed9079de590ceb286 | b21c6d2897cd455fa396f4041a0c8165784e949f | ≥ 2.6.28.10, < 2.6.29 | ≥ 2.6.29.2, < 2.6.30 | 2.6.30
- linux_kernel< 4.9.326 | ≥ 4.10, < 4.14.291 | ≥ 4.15, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.137 | ≥ 5.11, < 5.15.61 | ≥ 5.16, < 5.18.18 | ≥ 5.19, < 5.19.2
Debian1 product
- linux< 6.0.2-1
3 vendors · 114 products
