Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mshv: Fix use-after-free in mshv_map_user_memory error path In the error path of mshv_map_user_memory(), calling vfree() directly on the region leaves the MMU notifier registered. When userspace later unmaps the memory, the notifier fires and accesses the freed region, causing a use-after-free and potential kernel panic. Replace vfree() with mshv_partition_put() to properly unregister the MMU notifier before freeing the region.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b9a66cd5ccbb9fade15d0e427e19470d8ad35b75 before 34861bdc0c0196b6c2dd48f7454029407704ff6e; affected b9a66cd5ccbb9fade15d0e427e19470d8ad35b75 before 6922db250422a0dfee34de322f86b7a73d713d33 |
| Linux / Linux | affected 6.19; unaffected 0 before 6.19; unaffected 6.19.10 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.