Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6326c26c1514757242829b292b26eac589013200 before 794fa52b94637d6b2e8c9474fbe3983af5c9f046; affected 6326c26c1514757242829b292b26eac589013200 before f80bd8bb6f380bc265834c46058d38b34174813e; affected 6326c26c1514757242829b292b26eac589013200 before b5efb63acf7bddaf20eacfcac654c25c446eabe8 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.41 through 6.6.*; unaffected 6.9.10 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/794fa52b94637d6b2e8c9474fbe3983af5c9f046
- https://git.kernel.org/stable/c/f80bd8bb6f380bc265834c46058d38b34174813e
- https://git.kernel.org/stable/c/b5efb63acf7bddaf20eacfcac654c25c446eabe8
ADP enrichment
No English description supplied.
No references supplied.