CVE-2026-43124
pstore: ram_core: fix incorrect success return when vmap() fails
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: pstore: ram_core: fix incorrect success return when vmap() fails In persistent_ram_vmap(), vmap() may return NULL on failure. If offset is non-zero, adding offset_in_page(start) causes the function to return a non-NULL pointer even though the mapping failed. persistent_ram_buffer_map() therefore incorrectly returns success. Subsequent access to prz->buffer may dereference an invalid address and cause crashes. Add proper NULL checking for vmap() failures.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d47234840aeb4182ed3ee795c578b1dfa9cbd25b 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 49918dd52615097529811d21ec6074dd02ebe77c 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8baa234181f632cabacf73e4834a910859e9fcc9 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1da904e84de608907662ad8a51ba9c571d61e003 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8d849adfbc3e98417fb541620568db1a759ef441 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88d5b28f63c7aac1271784e3b800ed405d1cde75 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 05363abc7625cf18c96e67f50673cd07f11da5e9
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/d47234840aeb4182ed3ee795c578b1dfa9cbd25b git.kernel.org: https://git.kernel.org/stable/c/49918dd52615097529811d21ec6074dd02ebe77c git.kernel.org: https://git.kernel.org/stable/c/8baa234181f632cabacf73e4834a910859e9fcc9 git.kernel.org: https://git.kernel.org/stable/c/1da904e84de608907662ad8a51ba9c571d61e003 git.kernel.org: https://git.kernel.org/stable/c/8d849adfbc3e98417fb541620568db1a759ef441 git.kernel.org: https://git.kernel.org/stable/c/2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb git.kernel.org: https://git.kernel.org/stable/c/88d5b28f63c7aac1271784e3b800ed405d1cde75 git.kernel.org: https://git.kernel.org/stable/c/05363abc7625cf18c96e67f50673cd07f11da5e9