{"api_version":"1","generated_at":"2026-09-12T10:56:36+00:00","cve":"CVE-2026-89441","urls":{"html":"https://cve.report/CVE-2026-89441","api":"https://cve.report/api/cve/CVE-2026-89441.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89441","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89441"},"summary":{"title":"mmc: via-sdmmc: cancel card-detect work on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: via-sdmmc: cancel card-detect work on remove\n\nDisabling the device interrupt and freeing the IRQ prevents new card-detect\nwork from being queued, but carddet_work already queued by the handler can\nstill run after via_sd_remove() returns. via_sdc_card_detect() recovers the\nhost through container_of() and dereferences its MMIO base; once remove()\nreturns the host can be freed, so that work would touch freed memory.\n\nCancel carddet_work after freeing the IRQ and before cancelling\nfinish_bh_work, which the card-detect handler can also queue. carddet_work\ncan re-enable the interrupt through via_reset_pcictrl(); mask it again\nafterwards.\n\nThis issue was found by an in-house static analysis tool and confirmed by\nmanual code review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:24","updated_at":"2026-09-11 20:19:24"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f7ff3027ef004a331ef911a4886f12bc2e996037","name":"https://git.kernel.org/stable/c/f7ff3027ef004a331ef911a4886f12bc2e996037","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5","name":"https://git.kernel.org/stable/c/57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eaca730c6f5e3609df62a0469fb789235a93d276","name":"https://git.kernel.org/stable/c/eaca730c6f5e3609df62a0469fb789235a93d276","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89441","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89441","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 f7ff3027ef004a331ef911a4886f12bc2e996037 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 eaca730c6f5e3609df62a0469fb789235a93d276 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.31","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.31 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.50 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * 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/mmc/host/via-sdmmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f7ff3027ef004a331ef911a4886f12bc2e996037","status":"affected","version":"f0bf7f61b8405224bc52fc9a3ccd167a68126e00","versionType":"git"},{"lessThan":"eaca730c6f5e3609df62a0469fb789235a93d276","status":"affected","version":"f0bf7f61b8405224bc52fc9a3ccd167a68126e00","versionType":"git"},{"lessThan":"57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5","status":"affected","version":"f0bf7f61b8405224bc52fc9a3ccd167a68126e00","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/mmc/host/via-sdmmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.31"},{"lessThan":"2.6.31","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.50","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.50","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.31","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: via-sdmmc: cancel card-detect work on remove\n\nDisabling the device interrupt and freeing the IRQ prevents new card-detect\nwork from being queued, but carddet_work already queued by the handler can\nstill run after via_sd_remove() returns. via_sdc_card_detect() recovers the\nhost through container_of() and dereferences its MMIO base; once remove()\nreturns the host can be freed, so that work would touch freed memory.\n\nCancel carddet_work after freeing the IRQ and before cancelling\nfinish_bh_work, which the card-detect handler can also queue. carddet_work\ncan re-enable the interrupt through via_reset_pcictrl(); mask it again\nafterwards.\n\nThis issue was found by an in-house static analysis tool and confirmed by\nmanual code review."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:43:10.083Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f7ff3027ef004a331ef911a4886f12bc2e996037"},{"url":"https://git.kernel.org/stable/c/eaca730c6f5e3609df62a0469fb789235a93d276"},{"url":"https://git.kernel.org/stable/c/57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5"}],"title":"mmc: via-sdmmc: cancel card-detect work on remove","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89441","datePublished":"2026-09-11T19:43:10.083Z","dateReserved":"2026-09-11T19:38:34.703Z","dateUpdated":"2026-09-11T19:43:10.083Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:24","lastModifiedDate":"2026-09-11 20:19:24","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89441","Ordinal":"1","Title":"mmc: via-sdmmc: cancel card-detect work on remove","CVE":"CVE-2026-89441","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89441","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: via-sdmmc: cancel card-detect work on remove\n\nDisabling the device interrupt and freeing the IRQ prevents new card-detect\nwork from being queued, but carddet_work already queued by the handler can\nstill run after via_sd_remove() returns. via_sdc_card_detect() recovers the\nhost through container_of() and dereferences its MMIO base; once remove()\nreturns the host can be freed, so that work would touch freed memory.\n\nCancel carddet_work after freeing the IRQ and before cancelling\nfinish_bh_work, which the card-detect handler can also queue. carddet_work\ncan re-enable the interrupt through via_reset_pcictrl(); mask it again\nafterwards.\n\nThis issue was found by an in-house static analysis tool and confirmed by\nmanual code review.","Type":"Description","Title":"mmc: via-sdmmc: cancel card-detect work on remove"}]}}}