172 lines
8.0 KiB
JSON
172 lines
8.0 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-2026-98032",
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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": "2026-09-25T10:19:56.070Z",
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"datePublished": "2026-09-25T10:23:48.169Z",
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"dateUpdated": "2026-10-21T12:54:06.279Z"
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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": "2026-10-21T12:54:06.279Z"
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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: Fix subbuf resize races with trace_pipe_raw readers\n\nConcurrent subbuffer resizes may crash trace_pipe_raw readers or leak\nuninitialized memory to userspace due to stale size values.\n\nModify ring_buffer_alloc_read_page() to handle the resizing of an\nexisting buffer_data_read_page if necessary and add a new\nring_buffer_read_page_size(). This new function enables ring-buffer\nbuffer_data_read_page users to not call the racy\nring_buffer_subbuf_size_get(). This makes the spare_size member of\nftrace_buffer_info redundant.\n\nFinally, handle buffer_data_read_page/reader_page order discrepancy in\nring_buffer_read_page(). On a mismatch simply copy manually the data to\nthe buffer_data_read_page."
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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/ring_buffer.h",
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"kernel/trace/ring_buffer.c",
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"kernel/trace/ring_buffer_benchmark.c",
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"kernel/trace/trace.c",
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"kernel/trace/trace.h"
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],
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"versions": [
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{
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"version": "bce761d757452ba5eb77e11fecc37a04b67494e7",
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"lessThan": "574efd988d116bd56ac688ab2d64e06ba0da982a",
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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": "bce761d757452ba5eb77e11fecc37a04b67494e7",
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"lessThan": "3f30b2cd4eba45c05f822f03f1b0f4077d6d4dc3",
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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": "bce761d757452ba5eb77e11fecc37a04b67494e7",
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"lessThan": "75b37b8369778b69ce9738d1c97685a1615cb252",
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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": "bce761d757452ba5eb77e11fecc37a04b67494e7",
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"lessThan": "dae8dda341d2d9034a90d59e8a7d502e1263813f",
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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/ring_buffer.h",
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"kernel/trace/ring_buffer.c",
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"kernel/trace/ring_buffer_benchmark.c",
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"kernel/trace/trace.c",
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"kernel/trace/trace.h"
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],
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"versions": [
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{
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"version": "6.8",
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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": "6.8",
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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": "6.12.114",
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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": "6.18.57",
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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": "7.2.7",
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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": "6.8",
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"versionEndExcluding": "6.12.114"
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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": "6.8",
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"versionEndExcluding": "6.18.57"
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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": "6.8",
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"versionEndExcluding": "7.2.7"
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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": "6.8",
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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/574efd988d116bd56ac688ab2d64e06ba0da982a"
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},
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{
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"url": "https://git.kernel.org/stable/c/3f30b2cd4eba45c05f822f03f1b0f4077d6d4dc3"
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},
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{
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"url": "https://git.kernel.org/stable/c/75b37b8369778b69ce9738d1c97685a1615cb252"
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},
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{
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"url": "https://git.kernel.org/stable/c/dae8dda341d2d9034a90d59e8a7d502e1263813f"
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}
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],
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"title": "tracing: Fix subbuf resize races with trace_pipe_raw readers",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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} |