Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mm/vma: correctly unaccount on mmap_prepare() failure __mmap_setup() accounts memory for relevant mappings via: security_vm_enough_memory_mm() -> __vm_enough_memory() -> vm_acct_memory() If __mmap_setup() fails, this indicates that this accounting did not take place, and thus it's appropriate for __mmap_region() to jump to abort_munmap. However if call_mmap_prepare() fails, it also jumps there and any accounted memory is not correctly unaccounted. Fix this by handling each error separately.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c84bf6dd2b836b49bb2662668ff1692350d28236 before fb5400bff669c8bad3d4ec09287d9b461e89e5f1; affected c84bf6dd2b836b49bb2662668ff1692350d28236 before 8fdc521d438fbf0d22c13d51d55d5dd82d7202b2; affected c84bf6dd2b836b49bb2662668ff1692350d28236 before 6cc27d82196385fe06853319f74312a7d8019726 |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.