CVE-2026-74352
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails
The global pointer 'reserved_mem' continues to reference the reserved_mem_array which lives in __initdata if alloc_reserved_mem_array() fails. of_reserved_mem_lookup() is exported for post-init use, that would dereference freed memory and trigger a use-after-free.
So reset reserved_mem_count to 0 when alloc_reserved_mem_array() fails.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b6ae53301eb41f0f59f83c161248b186bca7da70 < 6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b | affected |
| Linux | Linux | 00c9a452a235c61f099504783badd9a7675ff5a5 < 9af58d10d0d8c08b822de5fc99e61f31a87ede8d | affected |
| Linux | Linux | 00c9a452a235c61f099504783badd9a7675ff5a5 < cbd3102fe27bc87da244bf4c3ba670ea4698b0a8 | affected |
| Linux | Linux | 00c9a452a235c61f099504783badd9a7675ff5a5 < e1686ca81dbf3edbde589b7daf312b45cbf76e03 | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b
- https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d
- https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8
- https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03
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