310 lines
14 KiB
JSON
310 lines
14 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-2026-46159",
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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": "2026-05-13T15:03:33.102Z",
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"datePublished": "2026-05-28T09:36:14.676Z",
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"dateUpdated": "2026-11-06T16:13:41.858Z"
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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": "2026-06-19T11:59:41.263Z"
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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\nbtrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak\n\nbtrfs_ioctl_space_info() has a TOCTOU race between two passes over the\nblock group RAID type lists. The first pass counts entries to determine\nthe allocation size, then the second pass fills the buffer. The\ngroups_sem rwlock is released between passes, allowing concurrent block\ngroup removal to reduce the entry count.\n\nWhen the second pass fills fewer entries than the first pass counted,\ncopy_to_user() copies the full alloc_size bytes including trailing\nuninitialized kmalloc bytes to userspace.\n\nFix by copying only total_spaces entries (the actually-filled count from\nthe second pass) instead of alloc_size bytes, and switch to kzalloc so\nany future copy size mismatch cannot leak heap data."
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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/btrfs/ioctl.c"
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],
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"versions": [
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{
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"version": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "f407aad350bdea4db300c47433573b7a41630d33",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "d8224b1be6627c6c3b204bfb264508d27c65ac44",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "d69a4a6813fdba7c4cc3695a7e843842b240790d",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "f5ee467b56764964027c361641f64953fc0f8f9a",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "4fdc6ee0802121d9cd96b8d085e589f51e5a4ec3",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "5d12e0ab009ade48c1bff9324fd9bea2c773d088",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "d09d67d5de577cedae3de9497dff217e0ac8b641",
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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": "7fde62bffb576d384ea49a3aed3403d5609ee5bc",
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"lessThan": "973e57c726c1f8e77259d1c8e519519f1e9aea77",
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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/btrfs/ioctl.c"
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],
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"versions": [
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{
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"version": "2.6.34",
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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": "2.6.34",
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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": "5.10.259",
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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": "5.15.210",
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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": "6.1.176",
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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": "6.6.140",
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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": "6.12.90",
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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": "6.18.32",
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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": "7.0.7",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "2.6.34",
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"versionEndExcluding": "5.10.259"
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},
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{
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"vulnerable": true,
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"versionEndExcluding": "7.0.7"
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},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f407aad350bdea4db300c47433573b7a41630d33"
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},
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{
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"url": "https://git.kernel.org/stable/c/d8224b1be6627c6c3b204bfb264508d27c65ac44"
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},
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{
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"url": "https://git.kernel.org/stable/c/d69a4a6813fdba7c4cc3695a7e843842b240790d"
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},
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{
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"url": "https://git.kernel.org/stable/c/f5ee467b56764964027c361641f64953fc0f8f9a"
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},
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{
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"url": "https://git.kernel.org/stable/c/4fdc6ee0802121d9cd96b8d085e589f51e5a4ec3"
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},
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{
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"url": "https://git.kernel.org/stable/c/5d12e0ab009ade48c1bff9324fd9bea2c773d088"
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},
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{
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"url": "https://git.kernel.org/stable/c/d09d67d5de577cedae3de9497dff217e0ac8b641"
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},
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{
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"url": "https://git.kernel.org/stable/c/973e57c726c1f8e77259d1c8e519519f1e9aea77"
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}
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],
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"title": "btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak",
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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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"adp": [
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:20:52.767Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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}
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]
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},
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-46159",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:10:24.100456Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:13:41.858Z"
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}
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}
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]
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}
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} |