Answer in brief
CVE-2026-46155 records a Unknown severity vulnerability in smb/client: fix out-of-bounds read in smb2_compound_op(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7449d736bbbd160c76b01b8fcdf72f58a8757d4b <dffb44b2e06a2908e249f0f93156fc987eee1d1c || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <9b3af35645ff9cd334edc130249f9a2fb2bea25f || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <512d33bc8ea4ea5c19728ee118715f4b1f4d1926 || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <8d09328dfda089675e4c049f3f256064a1d1996b || >=6.6.32 <6.6.140 | dffb44b2e06a2908e249f0f93156fc987eee1d1c, 9b3af35645ff9cd334edc130249f9a2fb2bea25f, 512d33bc8ea4ea5c19728ee118715f4b1f4d1926, a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c, 8d09328dfda089675e4c049f3f256064a1d1996b, 6.6.140 |
| Linux/Linuxgeneric | 6.9 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in smb2_compound_op() If a server sends a truncated response but a large OutputBufferLength, and terminates the EA list early, check_wsl_eas() returns success without validating that the entire OutputBufferLength fits within iov_len. Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]); Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46155 records a Unknown severity vulnerability in smb/client: fix out-of-bounds read in smb2_compound_op(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7449d736bbbd160c76b01b8fcdf72f58a8757d4b <dffb44b2e06a2908e249f0f93156fc987eee1d1c || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <9b3af35645ff9cd334edc130249f9a2fb2bea25f || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <512d33bc8ea4ea5c19728ee118715f4b1f4d1926 || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c || >=ea41367b2a602f602ea6594fc4a310520dcc64f4 <8d09328dfda089675e4c049f3f256064a1d1996b || >=6.6.32 <6.6.140 | dffb44b2e06a2908e249f0f93156fc987eee1d1c, 9b3af35645ff9cd334edc130249f9a2fb2bea25f, 512d33bc8ea4ea5c19728ee118715f4b1f4d1926, a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c, 8d09328dfda089675e4c049f3f256064a1d1996b, 6.6.140 |
| Linux/Linuxgeneric | 6.9 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in smb2_compound_op() If a server sends a truncated response but a large OutputBufferLength, and terminates the EA list early, check_wsl_eas() returns success without validating that the entire OutputBufferLength fits within iov_len. Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]); Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.
Quoted source text, attributed separately from HOL analysis.