CVSS 5.5 · Medium EPSS 0,28%
Kerentanan Reachable Assertion pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE) Lack of check for copy-on-write (COW) mapping in drm_gem_shmem_mmap allows users to call mmap with PROT_WRITE and MAP_PRIVATE flag causing a kernel panic due to BUG_ON in vmf_insert_pfn_prot: BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); Return -EINVAL early if COW mapping is detected. This bug affects all drm drivers using default shmem helpers. It can be reproduced by this simple example: void *ptr = mmap(0, size, PROT_WRITE, MAP_PRIVATE, fd, mmap_offset); ptr[0] = 0;
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.2 hingga sebelum 5.10.229 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.169 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.114 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.35 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.9.6 |
| linux | linux kernel | Versi 6.10 rc1 |