CVE-2026-43061

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Source

https://cve.org/CVERecord?id=CVE-2026-43061

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43061.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-43061

Downstream

BELL (1)

BELL-CVE-2026-43061

DEBIAN (1)

DEBIAN-CVE-2026-43061

OESA (1)

OESA-2026-2582

openSUSE (1)

openSUSE-SU-2026:21555-1

ROOT (3)

SUSE (11)

UBUNTU (1)

Related

openSUSE (1)

openSUSE-SU-2026:21555-1

SUSE (11)

Published

2026-05-05T15:17:27Z

Modified

2026-10-08T02:50:52Z

Summary

serial: 8250: Fix TX deadlock when using DMA

Details

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.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43061.json"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

7c47e637dfadfbc691dd297b91d81ef939ca2080

Fixed

8190f9ab6ad90cb97652adbebd238b874a4ef70d

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

bf3f395b9c37956eca866c9e1679769ed7dcce68

Fixed

79a19bd936bb35f56ef0ccab1b3b59ebce8c762d

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

d470522c597b73e63cca04f3012aec28185113b7

Fixed

f76d91271bcacbd759a2e4ee3ea61faa6a727ccf

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

5e00346deb7bf40a4cf70e3716ac8e9a2409eb55

Fixed

d2719a0a9c3439abf67843a5504b7afccd9ded93

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

c8a52c772c7c6de72257a435bcad03d3bb914a70

Fixed

2a72403b985aea6b4aac3171830492f9a387f9e1

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

9e512eaaf8f4008c44ede3dfc0fbc9d9c5118583

Fixed

5f6b17562f03fc65c7d3474ef8f1959b19d1ca41

Fixed

b5ad887339503103d0fbe9827b16ad287597c275

Fixed

a424a34b8faddf97b5af41689087e7a230f79ba7

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

5.10.235

Fixed

5.10.253

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

5.15.179

Fixed

5.15.203

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

6.1.129

Fixed

6.1.167

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

6.6.79

Fixed

6.6.130

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

6.12.16

Fixed

6.12.78

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

5.4.291

Fixed

5.5

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

6.13.4

Fixed

6.14

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

bbec5998d7bd349730f59c959a8b00cfff816e34

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

59f751db7f392fa7a58cbd972205982f7f4f5854

Affected versions

v5.*

v5.10.235

v5.10.236

v5.10.237

v5.10.238

v5.10.239

v5.10.240

v5.10.241

v5.10.242

v5.10.243

v5.10.244

v5.10.245

v5.10.246

v5.10.247

v5.10.248

v5.10.249

v5.10.250

v5.10.251

v5.10.252

v5.15.179

v5.15.180

v5.15.181

v5.15.182

v5.15.183

v5.15.184

v5.15.185

v5.15.186

v5.15.187

v5.15.188

v5.15.189

v5.15.190

v5.15.191

v5.15.192

v5.15.193

v5.15.194

v5.15.195

v5.15.196

v5.15.197

v5.15.198

v5.15.199

v5.15.200

v5.15.201

v5.15.202

v5.4.291

v5.4.292

v5.4.293

v5.4.294

v5.4.295

v5.4.296

v5.4.297

v5.4.298

v5.4.299

v5.4.300

v5.4.301

v5.4.302

v6.*

v6.1.129

v6.1.130

v6.1.131

v6.1.132

v6.1.133

v6.1.134

v6.1.135

v6.1.136

v6.1.137

v6.1.138

v6.1.139

v6.1.140

v6.1.141

v6.1.142

v6.1.143

v6.1.144

v6.1.145

v6.1.146

v6.1.147

v6.1.148

v6.1.149

v6.1.150

v6.1.151

v6.1.152

v6.1.153

v6.1.154

v6.1.155

v6.1.156

v6.1.157

v6.1.158

v6.1.159

v6.1.160

v6.1.161

v6.1.162

v6.1.163

v6.1.164

v6.1.165

v6.1.166

v6.12.16

v6.12.17

v6.12.18

v6.12.19

v6.12.20

v6.12.21

v6.12.22

v6.12.23

v6.12.24

v6.12.25

v6.12.26

v6.12.27

v6.12.28

v6.12.29

v6.12.30

v6.12.31

v6.12.32

v6.12.33

v6.12.34

v6.12.35

v6.12.36

v6.12.37

v6.12.38

v6.12.39

v6.12.40

v6.12.41

v6.12.42

v6.12.43

v6.12.44

v6.12.45

v6.12.46

v6.12.47

v6.12.48

v6.12.49

v6.12.50

v6.12.51

v6.12.52

v6.12.53

v6.12.54

v6.12.55

v6.12.56

v6.12.57

v6.12.58

v6.12.59

v6.12.60

v6.12.61

v6.12.62

v6.12.63

v6.12.64

v6.12.65

v6.12.66

v6.12.67

v6.12.68

v6.12.69

v6.12.70

v6.12.71

v6.12.72

v6.12.73

v6.12.74

v6.12.75

v6.12.76

v6.12.77

v6.13.10

v6.13.11

v6.13.12

v6.13.4

v6.13.5

v6.13.6

v6.13.7

v6.13.8

v6.13.9

v6.6.100

v6.6.101

v6.6.102

v6.6.103

v6.6.104

v6.6.105

v6.6.106

v6.6.107

v6.6.108

v6.6.109

v6.6.110

v6.6.111

v6.6.112

v6.6.113

v6.6.114

v6.6.115

v6.6.116

v6.6.117

v6.6.118

v6.6.119

v6.6.120

v6.6.121

v6.6.122

v6.6.123

v6.6.124

v6.6.125

v6.6.126

v6.6.127

v6.6.128

v6.6.129

v6.6.79

v6.6.80

v6.6.81

v6.6.82

v6.6.83

v6.6.84

v6.6.85

v6.6.86

v6.6.87

v6.6.88

v6.6.89

v6.6.90

v6.6.91

v6.6.92

v6.6.93

v6.6.94

v6.6.95

v6.6.96

v6.6.97

v6.6.98

v6.6.99

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43061.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

5.10.253

Type: ECOSYSTEM
Events: Introduced

5.11.0

Fixed

5.15.203

Type: ECOSYSTEM
Events: Introduced

5.16.0

Fixed

6.1.167

Type: ECOSYSTEM
Events: Introduced

6.2.0

Fixed

6.6.130

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.78

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.20

Type: ECOSYSTEM
Events: Introduced

6.14.0

Fixed

6.19.10

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43061.json"