CVE-2022-49710
dm mirror log: round up region bitmap size to BITS_PER_LONG
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits. It then uses find_next_zero_bit_le on the allocated region. find_next_zero_bit_le accesses the bitmap using unsigned long pointers. So, on 64-bit architectures, it may access 4 bytes beyond the allocated size. Fix this bug by rounding up bitset_size to BITS_PER_LONG. This bug was found by running the lvm2 testsuite with kasan.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
29121bd0b00ebb9524971a583fea4a2f7afe8041 < ae460312875159285cef5bf3dc654593f404a1ef 29121bd0b00ebb9524971a583fea4a2f7afe8041 < ba751f0d25f07aa21ce9b85372a3792bf7969d13 29121bd0b00ebb9524971a583fea4a2f7afe8041 < 0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9 29121bd0b00ebb9524971a583fea4a2f7afe8041 < 9a02f3275acc628c0d956be771405ced79ac36df 29121bd0b00ebb9524971a583fea4a2f7afe8041 < 85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0
Linux / Linux
2.6.18
References
git.kernel.org: https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef git.kernel.org: https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13 git.kernel.org: https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9 git.kernel.org: https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df git.kernel.org: https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0