Answer in brief
CVE-2024-42235 records a High severity (CVSS 7.8) 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.
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 | >=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.