CVE-2022-49710
- Source
- https://cve.org/CVERecord?id=CVE-2022-49710
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49710.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49710
- Downstream
- Related
- Published
- 2025-02-26T02:24:27.532Z
- Modified
- 2026-04-11T12:44:27.892965Z
- Summary
- dm mirror log: round up region bitmap size to BITS_PER_LONG
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
dm mirror log: round up region bitmap size to BITSPERLONG
The code in dm-log rounds up bitsetsize to 32 bits. It then uses findnextzerobitle on the allocated region. findnextzerobit_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 bitsetsize to BITSPER_LONG.
This bug was found by running the lvm2 testsuite with kasan.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49710.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9
- https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0
- https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df
- https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef
- https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49710.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49710
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced29121bd0b00ebb9524971a583fea4a2f7afe8041Fixedae460312875159285cef5bf3dc654593f404a1efFixedba751f0d25f07aa21ce9b85372a3792bf7969d13Fixed0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9Fixed9a02f3275acc628c0d956be771405ced79ac36dfFixed85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0