Answer in brief
CVE-2026-45935 records a High severity (CVSS 7.8) vulnerability in fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot. 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.
Answer in brief
CVE-2026-45935 records a High severity (CVSS 7.8) vulnerability in fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot. 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.
CVSS is 7.8. 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 | >=b46acd6a6a627d876898e1c84d3f84902264b445 <36c03f7f177b34d51f1cf1d2304b1074607bf4b0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <b271c9cb85927210b1b799e55ee7f702d12b4336 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <a584b9d1059b29e97e17c919274e9adfb846f2a0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <c065541b71b79874c83d418a9acd18ad5826339b || >=b46acd6a6a627d876898e1c84d3f84902264b445 <78942172d5bff4d4afed8674abc09cc560ce44a0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <f3b437a4c3e022a1449658ae9f3dd34859894513 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <b2bc7c44ed1779fc9eaab9a186db0f0d01439622 | 36c03f7f177b34d51f1cf1d2304b1074607bf4b0, b271c9cb85927210b1b799e55ee7f702d12b4336, a584b9d1059b29e97e17c919274e9adfb846f2a0, c065541b71b79874c83d418a9acd18ad5826339b, 78942172d5bff4d4afed8674abc09cc560ce44a0, f3b437a4c3e022a1449658ae9f3dd34859894513, b2bc7c44ed1779fc9eaab9a186db0f0d01439622 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot In the 'DeleteIndexEntryRoot' case of the 'do_action' function, the entry size ('esize') is retrieved from the log record without adequate bounds checking. Specifically, the code calculates the end of the entry ('e2') using: e2 = Add2Ptr(e1, esize); It then calculates the size for memmove using 'PtrOffset(e2, ...)', which subtracts the end pointer from the buffer limit. If 'esize' is maliciously large, 'e2' exceeds the used buffer size. This results in a negative offset which, when cast to size_t for memmove, interprets as a massive unsigned integer, leading to a heap buffer overflow. This commit adds a check to ensure that the entry size ('esize') strictly fits within the remaining used space of the index header before performing memory operations.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. 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 | >=b46acd6a6a627d876898e1c84d3f84902264b445 <36c03f7f177b34d51f1cf1d2304b1074607bf4b0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <b271c9cb85927210b1b799e55ee7f702d12b4336 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <a584b9d1059b29e97e17c919274e9adfb846f2a0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <c065541b71b79874c83d418a9acd18ad5826339b || >=b46acd6a6a627d876898e1c84d3f84902264b445 <78942172d5bff4d4afed8674abc09cc560ce44a0 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <f3b437a4c3e022a1449658ae9f3dd34859894513 || >=b46acd6a6a627d876898e1c84d3f84902264b445 <b2bc7c44ed1779fc9eaab9a186db0f0d01439622 | 36c03f7f177b34d51f1cf1d2304b1074607bf4b0, b271c9cb85927210b1b799e55ee7f702d12b4336, a584b9d1059b29e97e17c919274e9adfb846f2a0, c065541b71b79874c83d418a9acd18ad5826339b, 78942172d5bff4d4afed8674abc09cc560ce44a0, f3b437a4c3e022a1449658ae9f3dd34859894513, b2bc7c44ed1779fc9eaab9a186db0f0d01439622 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot In the 'DeleteIndexEntryRoot' case of the 'do_action' function, the entry size ('esize') is retrieved from the log record without adequate bounds checking. Specifically, the code calculates the end of the entry ('e2') using: e2 = Add2Ptr(e1, esize); It then calculates the size for memmove using 'PtrOffset(e2, ...)', which subtracts the end pointer from the buffer limit. If 'esize' is maliciously large, 'e2' exceeds the used buffer size. This results in a negative offset which, when cast to size_t for memmove, interprets as a massive unsigned integer, leading to a heap buffer overflow. This commit adds a check to ensure that the entry size ('esize') strictly fits within the remaining used space of the index header before performing memory operations.
Quoted source text, attributed separately from HOL analysis.