CVE-2025-68348
- Source
- https://cve.org/CVERecord?id=CVE-2025-68348
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-68348.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-68348
- Downstream
- Related
- Published
- 2025-12-24T10:32:40.561Z
- Modified
- 2026-05-15T04:14:11.949818101Z
- Summary
- block: fix memory leak in __blkdev_issue_zero_pages
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
block: fix memory leak in _blkdevissuezeropages
Move the fatal signal check before bioalloc() to prevent a memory leak when BLKDEVZERO_KILLABLE is set and a fatal signal is pending.
Previously, the bio was allocated before checking for a fatal signal. If a signal was pending, the code would break out of the loop without freeing or chaining the just-allocated bio, causing a memory leak.
This matches the pattern already used in _blkdevissuewritezeroes() where the signal check precedes the allocation.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68348.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/453e4b0c84d0db1454ff0adf655d91179e6fca3a
- https://git.kernel.org/stable/c/7193407bc4457212fa38ec3aff9c640e63a8dbef
- https://git.kernel.org/stable/c/7957635c679e8a01147163a3a4a1f16e1210fa03
- https://git.kernel.org/stable/c/f7e3f852a42d7cd8f1af2c330d9d153e30c8adcf
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68348.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68348
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git