CVE-2022-49710
Published: Feb 26, 2025
Modified: May 11, 2026
Description
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 | Product | Versions |
|---|---|---|
Linux | Linux | affected 29121bd0b00ebb9524971a583fea4a2f7afe8041 - < ae460312875159285cef5bf3dc654593f404a1efaffected 29121bd0b00ebb9524971a583fea4a2f7afe8041 - < ba751f0d25f07aa21ce9b85372a3792bf7969d13affected 29121bd0b00ebb9524971a583fea4a2f7afe8041 - < 0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9affected 29121bd0b00ebb9524971a583fea4a2f7afe8041 - < 9a02f3275acc628c0d956be771405ced79ac36dfaffected 29121bd0b00ebb9524971a583fea4a2f7afe8041 - < 85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0 |
Linux | Linux | affected 2.6.18unaffected 0 - < 2.6.18unaffected 5.4.200 - <= 5.4.*unaffected 5.10.124 - <= 5.10.*unaffected 5.15.49 - <= 5.15.*+2 more versions |
References
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