{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47368","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:58:30.810Z","datePublished":"2024-05-21T15:03:34.494Z","dateUpdated":"2025-05-04T07:09:30.496Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:09:30.496Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nenetc: Fix illegal access when reading affinity_hint\n\nirq_set_affinity_hit() stores a reference to the cpumask_t\nparameter in the irq descriptor, and that reference can be\naccessed later from irq_affinity_hint_proc_show(). Since\nthe cpu_mask parameter passed to irq_set_affinity_hit() has\nonly temporary storage (it's on the stack memory), later\naccesses to it are illegal. Thus reads from the corresponding\nprocfs affinity_hint file can result in paging request oops.\n\nThe issue is fixed by the get_cpu_mask() helper, which provides\na permanent storage for the cpumask_t parameter."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/enetc/enetc.c"],"versions":[{"version":"d4fd0404c1c95b17880f254ebfee3485693fa8ba","lessThan":"4c4c3052911b577920353a7646e4883d5da40c28","status":"affected","versionType":"git"},{"version":"d4fd0404c1c95b17880f254ebfee3485693fa8ba","lessThan":"6c3f1b741c6c2914ea120e3a5790d3e900152f7b","status":"affected","versionType":"git"},{"version":"d4fd0404c1c95b17880f254ebfee3485693fa8ba","lessThan":"6f329d9da2a5ae032fcde800a99b118124ed5270","status":"affected","versionType":"git"},{"version":"d4fd0404c1c95b17880f254ebfee3485693fa8ba","lessThan":"7237a494decfa17d0b9d0076e6cee3235719de90","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/enetc/enetc.c"],"versions":[{"version":"5.1","status":"affected"},{"version":"0","lessThan":"5.1","status":"unaffected","versionType":"semver"},{"version":"5.4.150","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.70","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.9","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.4.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.10.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.14.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4c4c3052911b577920353a7646e4883d5da40c28"},{"url":"https://git.kernel.org/stable/c/6c3f1b741c6c2914ea120e3a5790d3e900152f7b"},{"url":"https://git.kernel.org/stable/c/6f329d9da2a5ae032fcde800a99b118124ed5270"},{"url":"https://git.kernel.org/stable/c/7237a494decfa17d0b9d0076e6cee3235719de90"}],"title":"enetc: Fix illegal access when reading affinity_hint","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-400","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"affected":[{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"d4fd0404c1c9","status":"affected","lessThan":"4c4c3052911b","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"d4fd0404c1c9","status":"affected","lessThan":"6c3f1b741c6c","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"d4fd0404c1c9","status":"affected","lessThan":"6f329d9da2a5","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"d4fd0404c1c9","status":"affected","lessThan":"7237a494decf","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.1","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"0","status":"unaffected","lessThan":"5.1","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.4.150","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.10.70","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.14.9","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"custom"}]},{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"5.15","status":"unaffected"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.1,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-06-05T20:50:21.709936Z","id":"CVE-2021-47368","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical 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