Answer in brief
CVE-2023-53219 records a Unknown severity vulnerability in media: netup_unidvb: fix use-after-free at del_timer(). 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-2023-53219 records a Unknown severity vulnerability in media: netup_unidvb: fix use-after-free at del_timer(). 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <dd5c77814f290b353917df329f36de1472d47154 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <90229e9ee957d4514425e4a4d82c50ab5d57ac4d || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <1550bcf2983ae1220cc8ab899a39a423fa7cb523 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <f9982db735a8495eee14267cf193c806b957e942 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <07821524f67bf920342bc84ae8b3dea2a315a89e || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <0f5bb36bf9b39a2a96e730bf4455095b50713f63 | dd5c77814f290b353917df329f36de1472d47154, 90229e9ee957d4514425e4a4d82c50ab5d57ac4d, 1550bcf2983ae1220cc8ab899a39a423fa7cb523, f9982db735a8495eee14267cf193c806b957e942, 051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3, 07821524f67bf920342bc84ae8b3dea2a315a89e, c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc, 0f5bb36bf9b39a2a96e730bf4455095b50713f63 |
| Linux/Linuxgeneric | 4.3 | Not reported |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: media: netup_unidvb: fix use-after-free at del_timer() When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below: (cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE Fix by changing del_timer() to del_timer_sync().
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <dd5c77814f290b353917df329f36de1472d47154 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <90229e9ee957d4514425e4a4d82c50ab5d57ac4d || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <1550bcf2983ae1220cc8ab899a39a423fa7cb523 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <f9982db735a8495eee14267cf193c806b957e942 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <07821524f67bf920342bc84ae8b3dea2a315a89e || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc || >=52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e <0f5bb36bf9b39a2a96e730bf4455095b50713f63 | dd5c77814f290b353917df329f36de1472d47154, 90229e9ee957d4514425e4a4d82c50ab5d57ac4d, 1550bcf2983ae1220cc8ab899a39a423fa7cb523, f9982db735a8495eee14267cf193c806b957e942, 051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3, 07821524f67bf920342bc84ae8b3dea2a315a89e, c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc, 0f5bb36bf9b39a2a96e730bf4455095b50713f63 |
| Linux/Linuxgeneric | 4.3 | Not reported |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: media: netup_unidvb: fix use-after-free at del_timer() When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below: (cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE Fix by changing del_timer() to del_timer_sync().
Quoted source text, attributed separately from HOL analysis.