314 lines
16 KiB
JSON
314 lines
16 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-2026-64299",
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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": "2026-07-19T15:36:31.778Z",
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"datePublished": "2026-07-25T08:49:35.742Z",
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"dateUpdated": "2026-10-19T20:38:22.703Z"
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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": "2026-08-17T04:52:57.094Z"
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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\ntracing: Prevent out-of-bounds read in glob matching\n\nString event fields are not necessarily NUL-terminated, so the filter\npredicate functions (filter_pred_string(), filter_pred_strloc() and\nfilter_pred_strrelloc()) pass the field length to the regex match\ncallbacks, and the length-aware matchers honour it.\n\nregex_match_glob() was the exception: it ignored the length and called\nglob_match(), which scans the string until it hits a NUL byte. Some\nstring fields are not NUL-terminated. One example is the dynamic char\narray of the xfs_* namespace tracepoints, which is copied without a\ntrailing NUL. For such a field, glob matching reads past the end of\nthe event field, causing a KASAN slab-out-of-bounds read in\nglob_match(), reached via regex_match_glob() and filter_match_preds()\nfrom the xfs_lookup tracepoint.\n\nAdd a length-bounded glob_match_len() and use it from regex_match_glob()\nso glob matching always stops at the field boundary. The matching loop\nis factored into a shared helper so glob_match() keeps its behaviour."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The attacker installs a glob filter through tracefs or perf_event_open and triggers it using a local pathname syscall on an affected filesystem such as XFS. Network clients cannot normally install or observe the required tracing filter.\nAC:L - No race or uncontrollable timing is required; the attacker selects a full-glob pattern and triggers a non-NUL-terminated event field repeatedly. Reused per-CPU trace buffers can also be groomed by attacker-controlled events.\nPR:L - Although user namespaces alone cannot bypass tracefs or initial-namespace perf capability checks, ordinary users can install filters when tracefs access is delegated to a tracing group or perf_event_paranoid permits kernel events. These are supported and reasonable deployments requiring only basic user privileges.\nUI:N - The attacker can install the filter and trigger pathname lookups directly without another user's action.\nS:U - The out-of-bounds read affects the host kernel within the same security authority and does not cross a guest-host, hypervisor, or IOMMU boundary.\nC:H - glob_match() ignores the supplied field length and scans until an incidental NUL, allowing filter results to act as an oracle over adjacent or reused kernel trace-buffer data. The read is not strictly bounded to a few bytes.\nI:N - The vulnerable code only reads memory and changes the Boolean filter result; it provides no out-of-bounds write or other memory-modification primitive.\nA:H - The repeatable unbounded scan can cross the event allocation or page boundary, producing the reported KASAN invalid access and potentially an oops or panic on inaccessible or poisoned memory. Panic-on-warning configurations make total availability loss directly achievable."
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}
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]
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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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"include/linux/glob.h",
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"kernel/trace/trace_events_filter.c",
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"lib/glob.c"
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],
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"versions": [
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{
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"version": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "265f3a690f6c7d69ef7d2ca50b04b4853a211df3",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "ee5b8888d3248618251fb69a2fad92afcb81557e",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "56d4c9ab84714eebb285a2fee68aaedf81e3ef15",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "35ae19764eabfe9c29029d3b5713c86e6855acdf",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "ebb55902856973906c8bb339a3a34824ed4a5086",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "2dad64a97e1df47f5d9ccb17fa319aa348617226",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "e5d5f3bd053a5f14787526c9f0f55ef900d43ac6",
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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": "60f1d5e3bac44b598f67d36062da96c095d2b700",
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"lessThan": "0a6070839b1ef276d5b05bedfb787743e140fb17",
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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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"include/linux/glob.h",
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"kernel/trace/trace_events_filter.c",
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"lib/glob.c"
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],
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"versions": [
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{
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"version": "4.10",
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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": "4.10",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.96",
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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": "6.18.39",
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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": "7.1.4",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "4.10",
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"versionEndExcluding": "5.10.261"
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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": "4.10",
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"versionEndExcluding": "5.15.212"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "6.6.145"
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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": "4.10",
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"versionEndExcluding": "6.12.96"
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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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"versionEndExcluding": "6.18.39"
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "7.1.4"
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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": "4.10",
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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/265f3a690f6c7d69ef7d2ca50b04b4853a211df3"
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},
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{
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"url": "https://git.kernel.org/stable/c/ee5b8888d3248618251fb69a2fad92afcb81557e"
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},
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{
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"url": "https://git.kernel.org/stable/c/56d4c9ab84714eebb285a2fee68aaedf81e3ef15"
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},
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{
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"url": "https://git.kernel.org/stable/c/35ae19764eabfe9c29029d3b5713c86e6855acdf"
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},
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{
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"url": "https://git.kernel.org/stable/c/ebb55902856973906c8bb339a3a34824ed4a5086"
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},
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{
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"url": "https://git.kernel.org/stable/c/2dad64a97e1df47f5d9ccb17fa319aa348617226"
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},
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{
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"url": "https://git.kernel.org/stable/c/e5d5f3bd053a5f14787526c9f0f55ef900d43ac6"
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},
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{
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"url": "https://git.kernel.org/stable/c/0a6070839b1ef276d5b05bedfb787743e140fb17"
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}
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],
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"title": "tracing: Prevent out-of-bounds read in glob matching",
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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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"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-2026-64299",
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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": "2026-10-16T15:38:40.585671Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-125",
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"description": "CWE-125 Out-of-bounds Read"
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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": "2026-10-19T20:38:22.703Z"
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}
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}
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]
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}
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} |