CVE-2026-74352
of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
b6ae53301eb41f0f59f83c161248b186bca7da70 < 6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b 00c9a452a235c61f099504783badd9a7675ff5a5 < 9af58d10d0d8c08b822de5fc99e61f31a87ede8d 00c9a452a235c61f099504783badd9a7675ff5a5 < cbd3102fe27bc87da244bf4c3ba670ea4698b0a8 00c9a452a235c61f099504783badd9a7675ff5a5 < e1686ca81dbf3edbde589b7daf312b45cbf76e03
Linux / Linux
6.13
References
git.kernel.org: https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b git.kernel.org: https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d git.kernel.org: https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8 git.kernel.org: https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03