Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args() The "arg->vec_len" variable is a u64 that comes from the user at the start of the function. The "arg->vec_len * sizeof(struct page_region))" multiplication can lead to integer wrapping. Use size_mul() to avoid that. Also the size_add/mul() functions work on unsigned long so for 32bit systems we need to ensure that "arg->vec_len" fits in an unsigned long.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 52526ca7fdb905a768a93f8faa418e9b988fc34b before adee03f8903c58a6a559f21388a430211fac8ce9; affected 52526ca7fdb905a768a93f8faa418e9b988fc34b before 669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.11.10 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/adee03f8903c58a6a559f21388a430211fac8ce9
- https://git.kernel.org/stable/c/669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e
ADP enrichment
No English description supplied.
No references supplied.