{"id":"CVE-2022-48747","state":"PUBLISHED","title":"block: Fix wrong offset in bio_truncate()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev.","publishedAt":"2024-06-20T11:13:29.951Z","updatedAt":"2026-05-23T15:20:36.508Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"943cd69efac437d82a7aea0659fccbcc071730de","status":"affected","lessThan":"6cbf4c731d7812518cd857c2cfc3da9fd120f6ae","versionType":"git"},{"version":"85a8ce62c2eabe28b9d76ca4eecf37922402df93","status":"affected","lessThan":"b63e120189fd92aff00096d11e2fc5253f60248b","versionType":"git"},{"version":"85a8ce62c2eabe28b9d76ca4eecf37922402df93","status":"affected","lessThan":"4633a79ff8bc82770486a063a08b55e5162521d8","versionType":"git"},{"version":"85a8ce62c2eabe28b9d76ca4eecf37922402df93","status":"affected","lessThan":"941d5180c430ce5b0f7a3622ef9b76077bfa3d82","versionType":"git"},{"version":"85a8ce62c2eabe28b9d76ca4eecf37922402df93","status":"affected","lessThan":"3ee859e384d453d6ac68bfd5971f630d9fa46ad3","versionType":"git"},{"version":"5.4.9","status":"affected","lessThan":"5.4.176","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/bio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.4.176","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.96","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.19","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.5","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/bio.c"]}],"references":["https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae","https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b","https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8","https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82","https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"],"weaknesses":["CWE-908"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48747.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48747","state":"PUBLISHED","datePublished":"2024-06-20T11:13:29.951Z","dateUpdated":"2026-05-23T15:20:36.508Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-06-20T11:09:39.055Z"},"containers":{"cna":{"title":"block: Fix wrong offset in bio_truncate()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. 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