246 lines
12 KiB
JSON
246 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-53270",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-09-16T08:05:12.516Z",
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"datePublished": "2025-09-16T08:06:59.730Z",
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"dateUpdated": "2026-05-11T19:41:40.526Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:41:40.526Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ext4/inode.c"
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],
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"versions": [
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{
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"version": "64769240bd07f446f83660bb143bb609d8ab4910",
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"lessThan": "18eb23891aeae3229baf8c7c23b76be3364e1967",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64769240bd07f446f83660bb143bb609d8ab4910",
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"lessThan": "d30090eb546d993ea3f3023452540c476ea614a5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64769240bd07f446f83660bb143bb609d8ab4910",
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"lessThan": "3ecea2fee14227712694c8b54ad99d471e61de92",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64769240bd07f446f83660bb143bb609d8ab4910",
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"lessThan": "53877ed201baa6b58f7ce9df92664a839113c30e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "64769240bd07f446f83660bb143bb609d8ab4910",
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"lessThan": "1dedde690303c05ef732b7c5c8356fdf60a4ade3",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ext4/inode.c"
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],
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"versions": [
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{
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"version": "2.6.27",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.27",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.111",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.28",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.2.15",
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"lessThanOrEqual": "6.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.3.2",
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"lessThanOrEqual": "6.3.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.4",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "5.15.111"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "6.1.28"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "6.2.15"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "6.3.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "6.4"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/18eb23891aeae3229baf8c7c23b76be3364e1967"
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},
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{
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"url": "https://git.kernel.org/stable/c/d30090eb546d993ea3f3023452540c476ea614a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/3ecea2fee14227712694c8b54ad99d471e61de92"
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},
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{
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"url": "https://git.kernel.org/stable/c/53877ed201baa6b58f7ce9df92664a839113c30e"
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},
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{
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"url": "https://git.kernel.org/stable/c/1dedde690303c05ef732b7c5c8356fdf60a4ade3"
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}
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],
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"title": "ext4: fix i_disksize exceeding i_size problem in paritally written case",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-53270",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-01-14T18:05:22.699836Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"description": "CWE-noinfo Not enough information"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-01-14T18:12:53.306Z"
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}
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}
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]
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}
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} |