164 lines
7.4 KiB
JSON
164 lines
7.4 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-2026-45884",
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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": "2026-05-13T15:03:33.082Z",
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"datePublished": "2026-05-27T12:16:56.542Z",
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"dateUpdated": "2026-05-27T12:16:56.542Z"
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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": "2026-05-27T12:16:56.542Z"
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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\napparmor: avoid per-cpu hold underflow in aa_get_buffer\n\nWhen aa_get_buffer() pulls from the per-cpu list it unconditionally\ndecrements cache->hold. If hold reaches 0 while count is still non-zero,\nthe unsigned decrement wraps to UINT_MAX. This keeps hold non-zero for a\nvery long time, so aa_put_buffer() never returns buffers to the global\nlist, which can starve other CPUs and force repeated kmalloc(aa_g_path_max)\nallocations.\n\nGuard the decrement so hold never underflows."
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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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"security/apparmor/lsm.c"
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],
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"versions": [
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{
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"version": "ea9bae12d02819556db63348db8bd8441eb316f2",
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"lessThan": "202824a1f89a9786c20a3d646a7c88d223abb1b2",
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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": "ea9bae12d02819556db63348db8bd8441eb316f2",
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"lessThan": "80c334acc6d0bee8605a358a33e69b4aea1ffb92",
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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": "ea9bae12d02819556db63348db8bd8441eb316f2",
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"lessThan": "4bcddd0f6b2e52b4c7b520e4d36a115caf5b7169",
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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": "ea9bae12d02819556db63348db8bd8441eb316f2",
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"lessThan": "640cf2f09575c9dc344b3f7be2498d31e3923ead",
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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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"security/apparmor/lsm.c"
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],
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"versions": [
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{
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"version": "6.7",
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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": "6.7",
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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": "6.12.75",
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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": "6.18.14",
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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": "6.19.4",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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": "6.7",
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"versionEndExcluding": "6.12.75"
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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": "6.7",
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"versionEndExcluding": "6.18.14"
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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": "6.7",
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"versionEndExcluding": "6.19.4"
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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": "6.7",
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"versionEndExcluding": "7.0"
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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/202824a1f89a9786c20a3d646a7c88d223abb1b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/80c334acc6d0bee8605a358a33e69b4aea1ffb92"
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},
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{
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"url": "https://git.kernel.org/stable/c/4bcddd0f6b2e52b4c7b520e4d36a115caf5b7169"
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},
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{
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"url": "https://git.kernel.org/stable/c/640cf2f09575c9dc344b3f7be2498d31e3923ead"
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}
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],
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"title": "apparmor: avoid per-cpu hold underflow in aa_get_buffer",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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} |