187 lines
8.9 KiB
JSON
187 lines
8.9 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-2026-93240",
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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": "2026-09-17T16:02:15.095Z",
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"datePublished": "2026-09-24T15:34:32.134Z",
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"dateUpdated": "2026-10-21T12:52:27.295Z"
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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": "2026-10-21T12:52:27.295Z"
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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\nmemcg: make the v1 soft limit knob inert\n\nThe v1 soft limit has been deprecated since v6.12 and nobody has reported\ndepending on it. Start the removal by decoupling the interface from the\nimplementation: keep memory.soft_limit_in_bytes, but ignore writes to it\nand always report the maximum value on read similar to what\nmemory.kmem.limit_in_bytes already does.\n\nWrites are still parsed, so malformed input keeps returning -EINVAL. The\nknob now also behaves the same everywhere: it used to return -EOPNOTSUPP\non PREEMPT_RT, where soft limit reclaim has always been disabled.\n\nThis also fixes the syzbot report linked below. Soft limit reclaim is the\nonly caller that runs shrink_lruvec() from kswapd against a specific\nmemcg, so it is the only way to reach lru_gen_shrink_lruvec() and in turn\nset_mm_walk(), which warns when called from kswapd."
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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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"Documentation/admin-guide/cgroup-v1/memory.rst",
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"mm/memcontrol-v1.c"
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],
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"versions": [
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"lessThan": "bf75f14d755f9cfbb246e6cc011b53cdd5142de3",
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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": "e9d4e1ee788097484606c32122f146d802a9c5fb",
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"lessThan": "72fb67f6e0e5d78e4f34cf9929d1afdb0fd54203",
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"status": "affected",
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"versionType": "git"
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"status": "affected",
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{
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"version": "e9d4e1ee788097484606c32122f146d802a9c5fb",
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"lessThan": "a3417097fb107cea3358b19bcbb4eb655fd67f8c",
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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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"Documentation/admin-guide/cgroup-v1/memory.rst",
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"mm/memcontrol-v1.c"
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],
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"versions": [
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{
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"version": "6.3",
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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": "6.3",
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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": "6.6.160",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.110",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.51",
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"lessThanOrEqual": "6.18.*",
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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": "7.2.5",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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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"versionStartIncluding": "6.3",
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"versionEndExcluding": "6.6.160"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/bf75f14d755f9cfbb246e6cc011b53cdd5142de3"
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},
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{
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"url": "https://git.kernel.org/stable/c/72fb67f6e0e5d78e4f34cf9929d1afdb0fd54203"
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},
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{
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"url": "https://git.kernel.org/stable/c/0a90e268cce7023f34087bfa4affb42e29ff5f45"
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},
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{
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"url": "https://git.kernel.org/stable/c/5ec8f629a300cc40e746d6178f724bdff7683fa7"
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},
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{
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"url": "https://git.kernel.org/stable/c/a3417097fb107cea3358b19bcbb4eb655fd67f8c"
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}
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],
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"title": "memcg: make the v1 soft limit knob inert",
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