DEBIAN-CVE-2025-38071
Record from OSV · Published June 18, 2025
In the Linux kernel, the following vulnerability has been resolved: x86/mm: Check return value from memblock_phys_alloc_range() At least with CONFIG_PHYSICAL_START=0x100000, if there is < 4 MiB of contiguous free memory available at this point, the kernel will crash and burn because memblock_phys_alloc_range() returns 0 on failure, which leads memblock_phys_free() to throw the first 4 MiB of physical memory to the wolves. At a minimum it should fail gracefully with a meaningful diagnostic, but in fact everything seems to work fine without the weird reserve allocation.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 6.12.32-1 |
| linux | Debian:14 | 6.12.32-1 |
| linux | Debian:12 | 6.1.147-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:14 | linux | 0 |
| Debian:12 | linux | 6.1.106-1, 6.1.106-2, 6.1.106-3 |
Timeline
- Jun 18, 2025 CVE Published
- Sep 1, 2026 CVE Updated
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