{"id":"CVE-2025-68348","summary":"block: fix memory leak in __blkdev_issue_zero_pages","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix memory leak in __blkdev_issue_zero_pages\n\nMove the fatal signal check before bio_alloc() to prevent a memory\nleak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending.\n\nPreviously, the bio was allocated before checking for a fatal signal.\nIf a signal was pending, the code would break out of the loop without\nfreeing or chaining the just-allocated bio, causing a memory leak.\n\nThis matches the pattern already used in __blkdev_issue_write_zeroes()\nwhere the signal check precedes the allocation.","modified":"2026-05-15T04:14:11.949818101Z","published":"2025-12-24T10:32:40.561Z","related":["SUSE-SU-2026:20555-1","SUSE-SU-2026:20599-1","SUSE-SU-2026:20615-1","openSUSE-SU-2026:10039-1","openSUSE-SU-2026:10301-1","openSUSE-SU-2026:20287-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68348.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/453e4b0c84d0db1454ff0adf655d91179e6fca3a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7193407bc4457212fa38ec3aff9c640e63a8dbef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7957635c679e8a01147163a3a4a1f16e1210fa03"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f7e3f852a42d7cd8f1af2c330d9d153e30c8adcf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68348.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68348"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.0"},{"fixed":"6.12.63"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.17.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-68348.json"}}],"schema_version":"1.7.5"}