{"api_version":"1","generated_at":"2026-05-28T23:05:01+00:00","cve":"CVE-2026-46177","urls":{"html":"https://cve.report/CVE-2026-46177","api":"https://cve.report/api/cve/CVE-2026-46177.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46177","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46177"},"summary":{"title":"ipmi: Add limits to event and receive message requests","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Add limits to event and receive message requests\n\nThe driver would just fetch events and receive messages until the\nBMC said it was done.  To avoid issues with BMCs that never say they are\ndone, add a limit of 10 fetches at a time.\n\nIn addition, an si interface has an attn state it can return from the\nhardware which is supposed to cause a flag fetch to see if the driver\nneeds to fetch events or message or a few other things.  If the attn\nbit gets stuck, it's a similar problem.  So allow messages in between\nflag fetches so the driver itself doesn't get stuck.\n\nThis is a more general fix than the previous fix for the specific bad\nBMC, but should fix the more general issue of a BMC that won't stop\nsaying it has data.\n\nThis has been there from the beginning of the driver.  It's not a bug\nper-se, but it is accounting for bugs in BMCs.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:33","updated_at":"2026-05-28 13:44:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68","name":"https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227","name":"https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37","name":"https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c","name":"https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20","name":"https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46177","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46177","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 67c44e0deba936d5edaebea356b4589eb43acb5c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e20212b431bef217d3886b86bbc90cc3ed00de68 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 3d37d2165df9504ea99d9e6181552dc4d2d1ab37 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c024167fb00489baee08c72182ca2e7dc5fb9f20 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c4cca236968683eb0d59abfb12d5c7e4d8514227 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.88 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/char/ipmi/ipmi_si_intf.c","drivers/char/ipmi/ipmi_ssif.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"67c44e0deba936d5edaebea356b4589eb43acb5c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e20212b431bef217d3886b86bbc90cc3ed00de68","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"3d37d2165df9504ea99d9e6181552dc4d2d1ab37","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c024167fb00489baee08c72182ca2e7dc5fb9f20","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c4cca236968683eb0d59abfb12d5c7e4d8514227","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/char/ipmi/ipmi_si_intf.c","drivers/char/ipmi/ipmi_ssif.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.88","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc3","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Add limits to event and receive message requests\n\nThe driver would just fetch events and receive messages until the\nBMC said it was done.  To avoid issues with BMCs that never say they are\ndone, add a limit of 10 fetches at a time.\n\nIn addition, an si interface has an attn state it can return from the\nhardware which is supposed to cause a flag fetch to see if the driver\nneeds to fetch events or message or a few other things.  If the attn\nbit gets stuck, it's a similar problem.  So allow messages in between\nflag fetches so the driver itself doesn't get stuck.\n\nThis is a more general fix than the previous fix for the specific bad\nBMC, but should fix the more general issue of a BMC that won't stop\nsaying it has data.\n\nThis has been there from the beginning of the driver.  It's not a bug\nper-se, but it is accounting for bugs in BMCs."}],"providerMetadata":{"dateUpdated":"2026-05-28T09:36:31.286Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c"},{"url":"https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68"},{"url":"https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37"},{"url":"https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20"},{"url":"https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227"}],"title":"ipmi: Add limits to event and receive message requests","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46177","datePublished":"2026-05-28T09:36:31.286Z","dateReserved":"2026-05-13T15:03:33.103Z","dateUpdated":"2026-05-28T09:36:31.286Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:33","lastModifiedDate":"2026-05-28 13:44:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46177","Ordinal":"1","Title":"ipmi: Add limits to event and receive message requests","CVE":"CVE-2026-46177","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46177","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Add limits to event and receive message requests\n\nThe driver would just fetch events and receive messages until the\nBMC said it was done.  To avoid issues with BMCs that never say they are\ndone, add a limit of 10 fetches at a time.\n\nIn addition, an si interface has an attn state it can return from the\nhardware which is supposed to cause a flag fetch to see if the driver\nneeds to fetch events or message or a few other things.  If the attn\nbit gets stuck, it's a similar problem.  So allow messages in between\nflag fetches so the driver itself doesn't get stuck.\n\nThis is a more general fix than the previous fix for the specific bad\nBMC, but should fix the more general issue of a BMC that won't stop\nsaying it has data.\n\nThis has been there from the beginning of the driver.  It's not a bug\nper-se, but it is accounting for bugs in BMCs.","Type":"Description","Title":"ipmi: Add limits to event and receive message requests"}]}}}