CVE-2026-46155
- Source
- https://cve.org/CVERecord?id=CVE-2026-46155
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46155.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-46155
- Downstream
- Related
- Published
- 2026-05-28T09:36:11.092Z
- Modified
- 2026-07-09T14:29:24.152265746Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- smb/client: fix out-of-bounds read in smb2_compound_op()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb/client: fix out-of-bounds read in smb2compoundop()
If a server sends a truncated response but a large OutputBufferLength, and terminates the EA list early, checkwsleas() returns success without validating that the entire OutputBufferLength fits within iov_len.
Then smb2compoundop() does: memcpy(idata->wsl.eas, data[0], size[0]);
Where size[0] is OutputBufferLength. If iovlen is smaller than size[0], memcpy can read beyond the end of the rspiov allocation and leak adjacent kernel heap memory.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46155.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/512d33bc8ea4ea5c19728ee118715f4b1f4d1926
- https://git.kernel.org/stable/c/8d09328dfda089675e4c049f3f256064a1d1996b
- https://git.kernel.org/stable/c/9b3af35645ff9cd334edc130249f9a2fb2bea25f
- https://git.kernel.org/stable/c/a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c
- https://git.kernel.org/stable/c/dffb44b2e06a2908e249f0f93156fc987eee1d1c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46155.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-46155
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced7449d736bbbd160c76b01b8fcdf72f58a8757d4bFixeddffb44b2e06a2908e249f0f93156fc987eee1d1c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedea41367b2a602f602ea6594fc4a310520dcc64f4Fixed9b3af35645ff9cd334edc130249f9a2fb2bea25fFixed512d33bc8ea4ea5c19728ee118715f4b1f4d1926Fixeda16f70a71be4b5a4eccf39a9bf09b47285f4cb7cFixed8d09328dfda089675e4c049f3f256064a1d1996b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.32Fixed6.6.140
Affected versions
v6.*
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
v6.6.130
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
v6.6.32
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
v6.6.70
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
v6.6.80
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
Linux / Kernel
Package
- Name
- Kernel