Answer in brief
CVE-2026-64598 records a Unknown severity vulnerability in smb/client: Fix error code in smb2_aead_req_alloc(). 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 | >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <aa37f5fef78dd11cbf983269da2031e12625c56d || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <cad756733dc3985188983f3e2eb77e2927209099 || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <a187883cc1dc784a4d32537f5d316f1b7b9ad76f || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <61f28012e5650c619223decdb7970e0d3162e949 | aa37f5fef78dd11cbf983269da2031e12625c56d, cad756733dc3985188983f3e2eb77e2927209099, a187883cc1dc784a4d32537f5d316f1b7b9ad76f, a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac, 61f28012e5650c619223decdb7970e0d3162e949 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
In the Linux kernel, the following vulnerability has been resolved: smb/client: Fix error code in smb2_aead_req_alloc() The "*num_sgs" variable is a u32 so "ERR_PTR(*num_sgs)" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler to store the return in an int ret variable. This bug would eventually result in a crash when dereference the invalid error pointer.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-64598 records a Unknown severity vulnerability in smb/client: Fix error code in smb2_aead_req_alloc(). 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 | >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <aa37f5fef78dd11cbf983269da2031e12625c56d || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <cad756733dc3985188983f3e2eb77e2927209099 || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <a187883cc1dc784a4d32537f5d316f1b7b9ad76f || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac || >=d08089f649a0cfb2099c8551ac47eef0cc23fdf2 <61f28012e5650c619223decdb7970e0d3162e949 | aa37f5fef78dd11cbf983269da2031e12625c56d, cad756733dc3985188983f3e2eb77e2927209099, a187883cc1dc784a4d32537f5d316f1b7b9ad76f, a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac, 61f28012e5650c619223decdb7970e0d3162e949 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
In the Linux kernel, the following vulnerability has been resolved: smb/client: Fix error code in smb2_aead_req_alloc() The "*num_sgs" variable is a u32 so "ERR_PTR(*num_sgs)" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler to store the return in an int ret variable. This bug would eventually result in a crash when dereference the invalid error pointer.
Quoted source text, attributed separately from HOL analysis.