{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68348","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-16T14:48:05.300Z","datePublished":"2025-12-24T10:32:40.561Z","dateUpdated":"2026-05-11T21:51:27.551Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:51:27.551Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-lib.c"],"versions":[{"version":"bf86bcdb40123ee99669ee91b67e023669433a1a","lessThan":"453e4b0c84d0db1454ff0adf655d91179e6fca3a","status":"affected","versionType":"git"},{"version":"bf86bcdb40123ee99669ee91b67e023669433a1a","lessThan":"7957635c679e8a01147163a3a4a1f16e1210fa03","status":"affected","versionType":"git"},{"version":"bf86bcdb40123ee99669ee91b67e023669433a1a","lessThan":"7193407bc4457212fa38ec3aff9c640e63a8dbef","status":"affected","versionType":"git"},{"version":"bf86bcdb40123ee99669ee91b67e023669433a1a","lessThan":"f7e3f852a42d7cd8f1af2c330d9d153e30c8adcf","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-lib.c"],"versions":[{"version":"6.11","status":"affected"},{"version":"0","lessThan":"6.11","status":"unaffected","versionType":"semver"},{"version":"6.12.63","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.13","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18.2","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.17.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/453e4b0c84d0db1454ff0adf655d91179e6fca3a"},{"url":"https://git.kernel.org/stable/c/7957635c679e8a01147163a3a4a1f16e1210fa03"},{"url":"https://git.kernel.org/stable/c/7193407bc4457212fa38ec3aff9c640e63a8dbef"},{"url":"https://git.kernel.org/stable/c/f7e3f852a42d7cd8f1af2c330d9d153e30c8adcf"}],"title":"block: fix memory leak in __blkdev_issue_zero_pages","x_generator":{"engine":"bippy-1.2.0"}}}}