CVE-2026-98685

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Source

https://cve.org/CVERecord?id=CVE-2026-98685

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98685.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-98685

Downstream

Published

2026-10-18T15:45:53Z

Modified

2026-10-20T02:30:15Z

Summary

smb: client: discard post-EOF pagecache when extending a file via clone range

Details

In the Linux kernel, the following vulnerability has been resolved:

smb: client: discard post-EOF pagecache when extending a file via clone range

cifs_remap_file_range() discarded the pagecache only for the folios overlapping the destination region, so when a clone extends the file the folio straddling the old EOF - which may hold data dirtied past EOF through an mmap - was never dropped and became visible as file content once the file was extended.

Start the discard at the smaller of fstart and the old EOF. i_size is still old here, so nothing past the old EOF is flushed to the server.

Database specific

{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98685.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

c54fc3a4f375663f2361a9cbb2955fb4ef912879

Fixed

15bb9f1d3e967e328649e92a1451e60a0dc66118

Fixed

4721587f96cb8de8164f3fd203093a0875560999

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

6.1.68

Fixed

6.2

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

6.6.7

Fixed

6.7

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

358bd5f436d820bb758833050aae065b35d6986c

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

43801359c8971cc49b4a4db5015fba77fbd09c32

Affected versions

v6.*

v6.1.100

v6.1.101

v6.1.102

v6.1.103

v6.1.104

v6.1.105

v6.1.106

v6.1.107

v6.1.108

v6.1.109

v6.1.110

v6.1.111

v6.1.112

v6.1.113

v6.1.114

v6.1.115

v6.1.116

v6.1.117

v6.1.118

v6.1.119

v6.1.120

v6.1.121

v6.1.122

v6.1.123

v6.1.124

v6.1.125

v6.1.126

v6.1.127

v6.1.128

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

v6.1.167

v6.1.168

v6.1.169

v6.1.170

v6.1.171

v6.1.172

v6.1.173

v6.1.174

v6.1.175

v6.1.176

v6.1.177

v6.1.178

v6.1.179

v6.1.180

v6.1.181

v6.1.182

v6.1.183

v6.1.184

v6.1.185

v6.1.186

v6.1.187

v6.1.188

v6.1.189

v6.1.190

v6.1.68

v6.1.69

v6.1.70

v6.1.71

v6.1.72

v6.1.73

v6.1.74

v6.1.75

v6.1.76

v6.1.77

v6.1.78

v6.1.79

v6.1.80

v6.1.81

v6.1.82

v6.1.83

v6.1.84

v6.1.85

v6.1.86

v6.1.87

v6.1.88

v6.1.89

v6.1.90

v6.1.91

v6.1.92

v6.1.93

v6.1.94

v6.1.95

v6.1.96

v6.1.97

v6.1.98

v6.1.99

v6.6.10

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

v6.6.11

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

v6.6.12

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

v6.6.13

v6.6.130

v6.6.131

v6.6.132

v6.6.133

v6.6.134

v6.6.135

v6.6.136

v6.6.137

v6.6.138

v6.6.139

v6.6.14

v6.6.140

v6.6.141

v6.6.142

v6.6.143

v6.6.144

v6.6.145

v6.6.146

v6.6.147

v6.6.148

v6.6.149

v6.6.15

v6.6.150

v6.6.151

v6.6.152

v6.6.153

v6.6.154

v6.6.155

v6.6.156

v6.6.157

v6.6.158

v6.6.159

v6.6.16

v6.6.17

v6.6.18

v6.6.19

v6.6.20

v6.6.21

v6.6.22

v6.6.23

v6.6.24

v6.6.25

v6.6.26

v6.6.27

v6.6.28

v6.6.29

v6.6.30

v6.6.31

v6.6.32

v6.6.33

v6.6.34

v6.6.35

v6.6.36

v6.6.37

v6.6.38

v6.6.39

v6.6.40

v6.6.41

v6.6.42

v6.6.43

v6.6.44

v6.6.45

v6.6.46

v6.6.47

v6.6.48

v6.6.49

v6.6.50

v6.6.51

v6.6.52

v6.6.53

v6.6.54

v6.6.55

v6.6.56

v6.6.57

v6.6.58

v6.6.59

v6.6.60

v6.6.61

v6.6.62

v6.6.63

v6.6.64

v6.6.65

v6.6.66

v6.6.67

v6.6.68

v6.6.69

v6.6.7

v6.6.70

v6.6.71

v6.6.72

v6.6.73

v6.6.74

v6.6.75

v6.6.76

v6.6.77

v6.6.78

v6.6.79

v6.6.8

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

v6.6.9

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-2026-98685.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

7.2.10

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98685.json"