{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T19:22:24.839","vulnerabilities":[{"cve":{"id":"CVE-2023-53270","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-09-16T08:15:35.790","lastModified":"2026-01-14T19:16:17.833","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix i_disksize exceeding i_size problem in paritally written case\n\nIt is possible for i_disksize can exceed i_size, triggering a warning.\n\ngeneric_perform_write\n copied = iov_iter_copy_from_user_atomic(len) // copied < len\n ext4_da_write_end\n | ext4_update_i_disksize\n |  new_i_size = pos + copied;\n |  WRITE_ONCE(EXT4_I(inode)->i_disksize, newsize) // update i_disksize\n | generic_write_end\n |  copied = block_write_end(copied, len) // copied = 0\n |   if (unlikely(copied < len))\n |    if (!PageUptodate(page))\n |     copied = 0;\n |  if (pos + copied > inode->i_size) // return false\n if (unlikely(copied == 0))\n  goto again;\n if (unlikely(iov_iter_fault_in_readable(i, bytes))) {\n  status = -EFAULT;\n  break;\n }\n\nWe get i_disksize greater than i_size here, which could trigger WARNING\ncheck 'i_size_read(inode) < EXT4_I(inode)->i_disksize' while doing dio:\n\next4_dio_write_iter\n iomap_dio_rw\n  __iomap_dio_rw // return err, length is not aligned to 512\n ext4_handle_inode_extension\n  WARN_ON_ONCE(i_size_read(inode) < EXT4_I(inode)->i_disksize) // Oops\n\n WARNING: CPU: 2 PID: 2609 at fs/ext4/file.c:319\n CPU: 2 PID: 2609 Comm: aa Not tainted 6.3.0-rc2\n RIP: 0010:ext4_file_write_iter+0xbc7\n Call Trace:\n  vfs_write+0x3b1\n  ksys_write+0x77\n  do_syscall_64+0x39\n\nFix it by updating 'copied' value before updating i_disksize just like\next4_write_inline_data_end() does.\n\nA reproducer can be found in the buganizer link below."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"5.15.111","matchCriteriaId":"E217E5B6-1E04-4007-8308-A833389CBFA0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.28","matchCriteriaId":"08F855F4-7188-4EE1-BD79-D4B6C7E2EF54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.2.15","matchCriteriaId":"3844A90B-940D-46C3-8D7B-9FF63F1AFC2F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.3.2","matchCriteriaId":"38F6F330-91A0-4675-8B90-6F950471A7CC"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/18eb23891aeae3229baf8c7c23b76be3364e1967","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1dedde690303c05ef732b7c5c8356fdf60a4ade3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3ecea2fee14227712694c8b54ad99d471e61de92","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/53877ed201baa6b58f7ce9df92664a839113c30e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d30090eb546d993ea3f3023452540c476ea614a5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}