Answer in brief
CVE-2022-50274 records a High severity (CVSS 7.8) vulnerability in media: dvbdev: adopts refcnt to avoid UAF. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2022-50274 records a High severity (CVSS 7.8) vulnerability in media: dvbdev: adopts refcnt to avoid UAF. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ac521bbe3d00fa574e66a9361763f2b37725bc97 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <219b44bf94203bd433aa91b7796475bf656348e5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2abd73433872194bccdf1432a0980e4ec5273c2a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <88a6f8a72d167294c0931c7874941bf37a41b6dd || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a2f0a08aa613176c9688c81d7b598a7779974991 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9945d05d6693710574f354c5dbddc47f5101eb77 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 | ac521bbe3d00fa574e66a9361763f2b37725bc97, 219b44bf94203bd433aa91b7796475bf656348e5, 6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2, 2abd73433872194bccdf1432a0980e4ec5273c2a, 88a6f8a72d167294c0931c7874941bf37a41b6dd, a2f0a08aa613176c9688c81d7b598a7779974991, 9945d05d6693710574f354c5dbddc47f5101eb77, 0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to use-after-free. That is, the cleanup from dvb_unregister_device() releases the dvb_device even if there are pointers stored in file->private_data still refer to it. This patch adds a reference counter into struct dvb_device and delays its deallocation until no pointer refers to the object.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ac521bbe3d00fa574e66a9361763f2b37725bc97 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <219b44bf94203bd433aa91b7796475bf656348e5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2abd73433872194bccdf1432a0980e4ec5273c2a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <88a6f8a72d167294c0931c7874941bf37a41b6dd || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a2f0a08aa613176c9688c81d7b598a7779974991 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9945d05d6693710574f354c5dbddc47f5101eb77 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 | ac521bbe3d00fa574e66a9361763f2b37725bc97, 219b44bf94203bd433aa91b7796475bf656348e5, 6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2, 2abd73433872194bccdf1432a0980e4ec5273c2a, 88a6f8a72d167294c0931c7874941bf37a41b6dd, a2f0a08aa613176c9688c81d7b598a7779974991, 9945d05d6693710574f354c5dbddc47f5101eb77, 0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to use-after-free. That is, the cleanup from dvb_unregister_device() releases the dvb_device even if there are pointers stored in file->private_data still refer to it. This patch adds a reference counter into struct dvb_device and delays its deallocation until no pointer refers to the object.
Quoted source text, attributed separately from HOL analysis.