206 lines
9.8 KiB
JSON
206 lines
9.8 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-2023-53783",
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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": "2025-12-08T23:58:35.272Z",
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"datePublished": "2025-12-09T00:00:38.679Z",
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"dateUpdated": "2026-05-11T19:51:26.633Z"
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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": "2026-05-11T19:51:26.633Z"
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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\nblk-iocost: fix divide by 0 error in calc_lcoefs()\n\necho max of u64 to cost.model can cause divide by 0 error.\n\n # echo 8:0 rbps=18446744073709551615 > /sys/fs/cgroup/io.cost.model\n\n divide error: 0000 [#1] PREEMPT SMP\n RIP: 0010:calc_lcoefs+0x4c/0xc0\n Call Trace:\n <TASK>\n ioc_refresh_params+0x2b3/0x4f0\n ioc_cost_model_write+0x3cb/0x4c0\n ? _copy_from_iter+0x6d/0x6c0\n ? kernfs_fop_write_iter+0xfc/0x270\n cgroup_file_write+0xa0/0x200\n kernfs_fop_write_iter+0x17d/0x270\n vfs_write+0x414/0x620\n ksys_write+0x73/0x160\n __x64_sys_write+0x1e/0x30\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\ncalc_lcoefs() uses the input value of cost.model in DIV_ROUND_UP_ULL,\noverflow would happen if bps plus IOC_PAGE_SIZE is greater than\nULLONG_MAX, it can cause divide by 0 error.\n\nFix the problem by setting basecost"
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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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"block/blk-iocost.c"
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],
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"versions": [
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{
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"version": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "9e8bf9f95f7a299fa9ea45b678d001806ad5e12c",
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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": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "6e291810fe83a384700eb24a1f714966391ed562",
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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": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "3538ade9d8c2ba41088e395de916f2599fadba8f",
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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": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "bf8eb1fd6110871e6232e8e7efe399276ef7e6f6",
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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": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "b96d7b4a9745fbd0c8384608ceb1f50415e862fa",
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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": "7caa47151ab2e644dd221f741ec7578d9532c9a3",
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"lessThan": "984af1e66b4126cf145153661cc24c213e2ec231",
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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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"block/blk-iocost.c"
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],
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"versions": [
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{
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"version": "5.4",
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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": "5.4",
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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": "5.4.235",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.173",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.99",
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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": "6.1.16",
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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": "6.2.3",
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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",
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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": "5.4",
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"versionEndExcluding": "5.4.235"
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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": "5.4",
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"versionEndExcluding": "5.10.173"
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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": "5.4",
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"versionEndExcluding": "5.15.99"
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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": "5.4",
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"versionEndExcluding": "6.1.16"
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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": "5.4",
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"versionEndExcluding": "6.2.3"
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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": "5.4",
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"versionEndExcluding": "6.3"
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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/9e8bf9f95f7a299fa9ea45b678d001806ad5e12c"
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},
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{
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"url": "https://git.kernel.org/stable/c/6e291810fe83a384700eb24a1f714966391ed562"
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},
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{
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"url": "https://git.kernel.org/stable/c/3538ade9d8c2ba41088e395de916f2599fadba8f"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf8eb1fd6110871e6232e8e7efe399276ef7e6f6"
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},
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{
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"url": "https://git.kernel.org/stable/c/b96d7b4a9745fbd0c8384608ceb1f50415e862fa"
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},
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{
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"url": "https://git.kernel.org/stable/c/984af1e66b4126cf145153661cc24c213e2ec231"
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}
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],
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"title": "blk-iocost: fix divide by 0 error in calc_lcoefs()",
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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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}
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} |