Answer in brief
CVE-2024-42235 records a Unknown severity vulnerability in s390/mm: Add NULL pointer check to crst_table_free() base_crst_free(). 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 | >=6326c26c1514757242829b292b26eac589013200 <794fa52b94637d6b2e8c9474fbe3983af5c9f046 || >=6326c26c1514757242829b292b26eac589013200 <f80bd8bb6f380bc265834c46058d38b34174813e || >=6326c26c1514757242829b292b26eac589013200 <b5efb63acf7bddaf20eacfcac654c25c446eabe8 | 794fa52b94637d6b2e8c9474fbe3983af5c9f046, f80bd8bb6f380bc265834c46058d38b34174813e, b5efb63acf7bddaf20eacfcac654c25c446eabe8 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Aug 7, 2024
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: s390/mm: Add NULL pointer check to crst_table_free() base_crst_free() crst_table_free() used to work with NULL pointers before the conversion to ptdescs. Since crst_table_free() can be called with a NULL pointer (error handling in crst_table_upgrade() add an explicit check. Also add the same check to base_crst_free() for consistency reasons. In real life this should not happen, since order two GFP_KERNEL allocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-42235 records a Unknown severity vulnerability in s390/mm: Add NULL pointer check to crst_table_free() base_crst_free(). 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 | >=6326c26c1514757242829b292b26eac589013200 <794fa52b94637d6b2e8c9474fbe3983af5c9f046 || >=6326c26c1514757242829b292b26eac589013200 <f80bd8bb6f380bc265834c46058d38b34174813e || >=6326c26c1514757242829b292b26eac589013200 <b5efb63acf7bddaf20eacfcac654c25c446eabe8 | 794fa52b94637d6b2e8c9474fbe3983af5c9f046, f80bd8bb6f380bc265834c46058d38b34174813e, b5efb63acf7bddaf20eacfcac654c25c446eabe8 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Aug 7, 2024
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: s390/mm: Add NULL pointer check to crst_table_free() base_crst_free() crst_table_free() used to work with NULL pointers before the conversion to ptdescs. Since crst_table_free() can be called with a NULL pointer (error handling in crst_table_upgrade() add an explicit check. Also add the same check to base_crst_free() for consistency reasons. In real life this should not happen, since order two GFP_KERNEL allocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.
Quoted source text, attributed separately from HOL analysis.