206 lines
10 KiB
JSON
206 lines
10 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-2026-90313",
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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": "2026-09-11T19:38:34.801Z",
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"datePublished": "2026-09-17T16:08:32.932Z",
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"dateUpdated": "2026-10-30T12:35:08.910Z"
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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": "2026-10-30T12:35:08.910Z"
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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\nbpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed\n\nA potential invalid storage access issue can occur after replacing a\ncgroup bpf prog.\n\nThis occurs in the following scenario:\n1. prog1 with storage is attached to a cgroup in multi-attach mode.\n2. prog1 is replaced with prog2 using BPF_F_REPLACE in multi-attach\n mode, but fails midway (e.g. in bpf_trampoline_link_cgroup_shim or\n update_effective_progs).\n3. A new prog3 is attached to the cgroup in multi-attach mode.\n\nThe reason is that __cgroup_bpf_attach overwrites pl->storage with the\nnew storage prior to attachment completion. When attachment fails\nmidway, the cleanup path calls bpf_cgroup_storages_free(new_storage) to\nfree the newly allocated storage, but fails to restore pl->storage back\nto old_storage.\n\nConsequently, the still-active prog1 holds invalid or dangling storage\npointers, leading to an invalid memory access when prog1 executes and\ncalls bpf_get_local_storage. Additionally, original pl->flags and\ncgrp->bpf.flags[atype] are left unrestored.\n\nFix this by saving old_pl_flags, old_storage, and old_flags prior to the\nupdate, and properly restoring all of them in the cleanup path on error."
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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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"kernel/bpf/cgroup.c"
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],
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"versions": [
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{
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"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "217b257d2c39e8dc32d691e8952f3cd921a80233",
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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": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "e26db0d636e4c24a6b16683ea95cf5077c64d74b",
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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": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "aaca16e042527f7efe48b50799bc662f1a191ce1",
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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": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "86ead176301109b78e1d14c0e9d0d9ff9723c769",
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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": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "2c2218560b6e28a63ff7834ba26d09ff8efdee39",
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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": "7d9c3427894fe70d1347b4820476bf37736d2ff0",
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"lessThan": "6655c409707ec8ce9ce0850ffe4fe02331fd4d9c",
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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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"kernel/bpf/cgroup.c"
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],
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"versions": [
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{
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"version": "5.9",
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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": "5.9",
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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": "6.1.191",
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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": "6.6.157",
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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": "6.18.52",
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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": "7.2.6",
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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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"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": "5.9",
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"versionEndExcluding": "6.1.191"
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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": "5.9",
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"versionEndExcluding": "6.6.157"
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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": "5.9",
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"versionEndExcluding": "6.12.110"
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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": "5.9",
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"versionEndExcluding": "6.18.52"
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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": "5.9",
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"versionEndExcluding": "7.2.6"
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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": "5.9",
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"versionEndExcluding": "7.3"
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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/217b257d2c39e8dc32d691e8952f3cd921a80233"
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},
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{
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"url": "https://git.kernel.org/stable/c/e26db0d636e4c24a6b16683ea95cf5077c64d74b"
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},
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{
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"url": "https://git.kernel.org/stable/c/aaca16e042527f7efe48b50799bc662f1a191ce1"
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},
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{
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"url": "https://git.kernel.org/stable/c/86ead176301109b78e1d14c0e9d0d9ff9723c769"
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},
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{
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"url": "https://git.kernel.org/stable/c/2c2218560b6e28a63ff7834ba26d09ff8efdee39"
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},
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{
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"url": "https://git.kernel.org/stable/c/6655c409707ec8ce9ce0850ffe4fe02331fd4d9c"
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}
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],
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"title": "bpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed",
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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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} |