CVE-2026-43061
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7c47e637dfadfbc691dd297b91d81ef939ca2080 | affected | git | 8190f9ab6ad90cb97652adbebd238b874a4ef70d | Unavailable | None listed |
| bf3f395b9c37956eca866c9e1679769ed7dcce68 | affected | git | 79a19bd936bb35f56ef0ccab1b3b59ebce8c762d | Unavailable | None listed |
| d470522c597b73e63cca04f3012aec28185113b7 | affected | git | f76d91271bcacbd759a2e4ee3ea61faa6a727ccf | Unavailable | None listed |
| 5e00346deb7bf40a4cf70e3716ac8e9a2409eb55 | affected | git | d2719a0a9c3439abf67843a5504b7afccd9ded93 | Unavailable | None listed |
| c8a52c772c7c6de72257a435bcad03d3bb914a70 | affected | git | 2a72403b985aea6b4aac3171830492f9a387f9e1 | Unavailable | None listed |
| 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 | affected | git | 5f6b17562f03fc65c7d3474ef8f1959b19d1ca41 | Unavailable | None listed |
| 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 | affected | git | b5ad887339503103d0fbe9827b16ad287597c275 | Unavailable | None listed |
| 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583 | affected | git | a424a34b8faddf97b5af41689087e7a230f79ba7 | Unavailable | None listed |
| bbec5998d7bd349730f59c959a8b00cfff816e34 | affected | git | Unavailable | Unavailable | None listed |
| 59f751db7f392fa7a58cbd972205982f7f4f5854 | affected | git | Unavailable | Unavailable | None listed |
| 5.10.235 | affected | semver | 5.10.253 | Unavailable | None listed |
| 5.15.179 | affected | semver | 5.15.203 | Unavailable | None listed |
| 6.1.129 | affected | semver | 6.1.167 | Unavailable | None listed |
| 6.6.79 | affected | semver | 6.6.130 | Unavailable | None listed |
| 6.12.16 | affected | semver | 6.12.78 | Unavailable | None listed |
| 5.4.291 | affected | semver | 5.5 | Unavailable | None listed |
| 6.13.4 | affected | semver | 6.14 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.14 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.20 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.10 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |