CVE-2026-43061
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-05
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Weakness Classification (1)
Affected Software (32)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 7c47e637dfadfbc691dd297b91d81ef939ca2080 < 8190f9ab6ad90cb97652adbebd238b874a4ef70d |
| Linux | Linux | bf3f395b9c37956eca866c9e1679769ed7dcce68 < 79a19bd936bb35f56ef0ccab1b3b59ebce8c762d |
| Linux | Linux | d470522c597b73e63cca04f3012aec28185113b7 < f76d91271bcacbd759a2e4ee3ea61faa6a727ccf |
| Linux | Linux | 5e00346deb7bf40a4cf70e3716ac8e9a2409eb55 < d2719a0a9c3439abf67843a5504b7afccd9ded93 |
| Linux | Linux | c8a52c772c7c6de72257a435bcad03d3bb914a70 < 2a72403b985aea6b4aac3171830492f9a387f9e1 |
| Linux | Linux | 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 < 5f6b17562f03fc65c7d3474ef8f1959b19d1ca41 |
| Linux | Linux | 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 < b5ad887339503103d0fbe9827b16ad287597c275 |
| Linux | Linux | 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 < a424a34b8faddf97b5af41689087e7a230f79ba7 |
| Linux | Linux | bbec5998d7bd349730f59c959a8b00cfff816e34 |
| Linux | Linux | 59f751db7f392fa7a58cbd972205982f7f4f5854 |
| Linux | Linux | 5.10.235 < 5.10.253 |
| Linux | Linux | 5.15.179 < 5.15.203 |
| Linux | Linux | 6.1.129 < 6.1.167 |
| Linux | Linux | 6.6.79 < 6.6.130 |
| Linux | Linux | 6.12.16 < 6.12.78 |
| Linux | Linux | 5.4.291 < 5.5 |
| Linux | Linux | 6.13.4 < 6.14 |
| Linux | Linux | 6.14 |
| linux | linux_kernel | 5.4.291 – 5.5 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
Showing 30 of 32 entries