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CVE-2026-43061

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 das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 7c47e637dfadfbc691dd297b91d81ef939ca2080
Version < 8190f9ab6ad90cb97652adbebd238b874a4ef70d
Status affected
Version bf3f395b9c37956eca866c9e1679769ed7dcce68
Version < 79a19bd936bb35f56ef0ccab1b3b59ebce8c762d
Status affected
Version d470522c597b73e63cca04f3012aec28185113b7
Version < f76d91271bcacbd759a2e4ee3ea61faa6a727ccf
Status affected
Version 5e00346deb7bf40a4cf70e3716ac8e9a2409eb55
Version < d2719a0a9c3439abf67843a5504b7afccd9ded93
Status affected
Version c8a52c772c7c6de72257a435bcad03d3bb914a70
Version < 2a72403b985aea6b4aac3171830492f9a387f9e1
Status affected
Version 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583
Version < 5f6b17562f03fc65c7d3474ef8f1959b19d1ca41
Status affected
Version 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583
Version < b5ad887339503103d0fbe9827b16ad287597c275
Status affected
Version 9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583
Version < a424a34b8faddf97b5af41689087e7a230f79ba7
Status affected
Version bbec5998d7bd349730f59c959a8b00cfff816e34
Status affected
Version 59f751db7f392fa7a58cbd972205982f7f4f5854
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.14
Status affected
Version 0
Version < 6.14
Status unaffected
Version <= 5.10.*
Version 5.10.253
Status unaffected
Version <= 5.15.*
Version 5.15.203
Status unaffected
Version <= 6.1.*
Version 6.1.167
Status unaffected
Version <= 6.6.*
Version 6.6.130
Status unaffected
Version <= 6.12.*
Version 6.12.78
Status unaffected
Version <= 6.18.*
Version 6.18.20
Status unaffected
Version <= 6.19.*
Version 6.19.10
Status unaffected
Version <= *
Version 7.0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.093
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.