5.5
CVE-2026-43061
- EPSS 0.09%
- Veröffentlicht 05.05.2026 16:16:15
- Zuletzt bearbeitet 29.05.2026 18:24:52
- Erkennungen
serial: 8250: Fix TX deadlock when using DMA
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix TX deadlock when using DMA `dmaengine_terminate_async` does not guarantee that the `__dma_tx_complete` callback will run. The callback is currently the only place where `dma->tx_running` gets cleared. If the transaction is canceled and the callback never runs, then `dma->tx_running` will never get cleared and we will never schedule new TX DMA transactions again. This change makes it so we clear `dma->tx_running` after we terminate the DMA transaction. This is "safe" because `serial8250_tx_dma_flush` is holding the UART port lock. The first thing the callback does is also grab the UART port lock, so access to `dma->tx_running` is serialized.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.4.291 < 5.5
Linux ≫ Linux Kernel Version >= 5.10.235 < 5.10.253
Linux ≫ Linux Kernel Version >= 5.15.179 < 5.15.203
Linux ≫ Linux Kernel Version >= 6.1.129 < 6.1.167
Linux ≫ Linux Kernel Version >= 6.6.79 < 6.6.130
Linux ≫ Linux Kernel Version >= 6.12.16 < 6.12.78
Linux ≫ Linux Kernel Version >= 6.13.4 < 6.14
Linux ≫ Linux Kernel Version >= 6.14.1 < 6.18.20
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.10
Linux ≫ Linux Kernel Version 6.14 Update -
Linux ≫ Linux Kernel Version 6.14 Update rc3
Linux ≫ Linux Kernel Version 6.14 Update rc4
Linux ≫ Linux Kernel Version 6.14 Update rc5
Linux ≫ Linux Kernel Version 6.14 Update rc6
Linux ≫ Linux Kernel Version 6.14 Update rc7
Linux ≫ Linux Kernel Version 7.0 Update rc1
Linux ≫ Linux Kernel Version 7.0 Update rc2
Linux ≫ Linux Kernel Version 7.0 Update rc3
Linux ≫ Linux Kernel Version 7.0 Update rc4
Linux ≫ Linux Kernel Version 7.0 Update rc5
Linux ≫ Linux Kernel Version 7.0 Update rc6
Linux ≫ Linux Kernel Version 7.0 Update rc7
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Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.09% | 0.006 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
CWE-667 Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
https://git.kernel.org/stable/c/2a72403b985aea6b4aac3171830492f9a387f9e1
https://git.kernel.org/stable/c/5f6b17562f03fc65c7d3474ef8f1959b19d1ca41
https://git.kernel.org/stable/c/79a19bd936bb35f56ef0ccab1b3b59ebce8c762d
https://git.kernel.org/stable/c/8190f9ab6ad90cb97652adbebd238b874a4ef70d
https://git.kernel.org/stable/c/a424a34b8faddf97b5af41689087e7a230f79ba7
https://git.kernel.org/stable/c/b5ad887339503103d0fbe9827b16ad287597c275
https://git.kernel.org/stable/c/d2719a0a9c3439abf67843a5504b7afccd9ded93
https://git.kernel.org/stable/c/f76d91271bcacbd759a2e4ee3ea61faa6a727ccf