164 lines
8.2 KiB
JSON
164 lines
8.2 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-2023-53777",
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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": "2025-12-08T23:58:35.271Z",
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"datePublished": "2025-12-09T00:00:32.947Z",
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"dateUpdated": "2026-05-11T19:51:20.826Z"
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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": "2026-05-11T19:51:20.826Z"
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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\nerofs: kill hooked chains to avoid loops on deduplicated compressed images\n\nAfter heavily stressing EROFS with several images which include a\nhand-crafted image of repeated patterns for more than 46 days, I found\ntwo chains could be linked with each other almost simultaneously and\nform a loop so that the entire loop won't be submitted. As a\nconsequence, the corresponding file pages will remain locked forever.\n\nIt can be _only_ observed on data-deduplicated compressed images.\nFor example, consider two chains with five pclusters in total:\n\tChain 1: 2->3->4->5 -- The tail pcluster is 5;\n Chain 2: 5->1->2 -- The tail pcluster is 2.\n\nChain 2 could link to Chain 1 with pcluster 5; and Chain 1 could link\nto Chain 2 at the same time with pcluster 2.\n\nSince hooked chains are all linked locklessly now, I have no idea how\nto simply avoid the race. Instead, let's avoid hooked chains completely\nuntil I could work out a proper way to fix this and end users finally\ntell us that it's needed to add it back.\n\nActually, this optimization can be found with multi-threaded workloads\n(especially even more often on deduplicated compressed images), yet I'm\nnot sure about the overall system impacts of not having this compared\nwith implementation complexity."
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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/erofs/zdata.c"
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],
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"versions": [
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{
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"version": "267f2492c8f71dac44399988b510f9bf6b074a51",
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"lessThan": "d3b39ea24835ac03da1a30f93ae7c05d55a40191",
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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": "267f2492c8f71dac44399988b510f9bf6b074a51",
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"lessThan": "b5b0d52f00e4bacb0ebdf47cd7016b0485fffad2",
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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": "267f2492c8f71dac44399988b510f9bf6b074a51",
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"lessThan": "10c2b98a40d9044a3e97f4697ca6213bad7e19c2",
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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": "267f2492c8f71dac44399988b510f9bf6b074a51",
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"lessThan": "967c28b23f6c89bb8eef6a046ea88afe0d7c1029",
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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/erofs/zdata.c"
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],
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"versions": [
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{
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"version": "6.0",
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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": "6.0",
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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": "6.1.39",
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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": "6.3.13",
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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": "6.4.4",
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"lessThanOrEqual": "6.4.*",
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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": "6.5",
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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": "6.0",
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"versionEndExcluding": "6.1.39"
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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": "6.0",
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"versionEndExcluding": "6.3.13"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.4.4"
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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": "6.0",
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"versionEndExcluding": "6.5"
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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/d3b39ea24835ac03da1a30f93ae7c05d55a40191"
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},
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{
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"url": "https://git.kernel.org/stable/c/b5b0d52f00e4bacb0ebdf47cd7016b0485fffad2"
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},
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{
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"url": "https://git.kernel.org/stable/c/10c2b98a40d9044a3e97f4697ca6213bad7e19c2"
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},
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{
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"url": "https://git.kernel.org/stable/c/967c28b23f6c89bb8eef6a046ea88afe0d7c1029"
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}
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],
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"title": "erofs: kill hooked chains to avoid loops on deduplicated compressed images",
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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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} |