{"api_version":"1","generated_at":"2026-04-23T10:21:24+00:00","cve":"CVE-2026-23207","urls":{"html":"https://cve.report/CVE-2026-23207","api":"https://cve.report/api/cve/CVE-2026-23207.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23207","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23207"},"summary":{"title":"spi: tegra210-quad: Protect curr_xfer check in IRQ handler","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi->curr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi->curr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi->curr_xfer  // NULL!\n    ... t->len ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-02-14 17:15:58","updated_at":"2026-04-02 12:16:19"},"problem_types":["CWE-362","CWE-416"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"4.7","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57","name":"https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e","name":"https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/84e926c1c272a35ddb9b86842d32fa833a60dfc7","name":"https://git.kernel.org/stable/c/84e926c1c272a35ddb9b86842d32fa833a60dfc7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23207","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23207","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 551060efb156c50fe33799038ba8145418cfdeef 84e926c1c272a35ddb9b86842d32fa833a60dfc7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 01bbf25c767219b14c3235bfa85906b8d2cb8fbc 2ac3a105e51496147c0e44e49466eecfcc532d57 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b4e002d8a7cee3b1d70efad0e222567f92a73000 edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 88db8bb7ed1bb474618acdf05ebd4f0758d244e2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 83309dd551cfd60a5a1a98d9cab19f435b44d46d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c934e40246da2c5726d14e94719c514e30840df8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb0c58be84f907285af45657c1d4847b960a12bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.63 6.12.80 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.2 6.18.10 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"23207","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/spi/spi-tegra210-quad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"84e926c1c272a35ddb9b86842d32fa833a60dfc7","status":"affected","version":"551060efb156c50fe33799038ba8145418cfdeef","versionType":"git"},{"lessThan":"2ac3a105e51496147c0e44e49466eecfcc532d57","status":"affected","version":"01bbf25c767219b14c3235bfa85906b8d2cb8fbc","versionType":"git"},{"lessThan":"edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e","status":"affected","version":"b4e002d8a7cee3b1d70efad0e222567f92a73000","versionType":"git"},{"status":"affected","version":"88db8bb7ed1bb474618acdf05ebd4f0758d244e2","versionType":"git"},{"status":"affected","version":"83309dd551cfd60a5a1a98d9cab19f435b44d46d","versionType":"git"},{"status":"affected","version":"c934e40246da2c5726d14e94719c514e30840df8","versionType":"git"},{"status":"affected","version":"bb0c58be84f907285af45657c1d4847b960a12bf","versionType":"git"}]},{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/spi/spi-tegra210-quad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6.12.80","status":"affected","version":"6.12.63","versionType":"semver"},{"lessThan":"6.18.10","status":"affected","version":"6.18.2","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.80","versionStartIncluding":"6.12.63","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.10","versionStartIncluding":"6.18.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.198","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.160","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.120","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi->curr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi->curr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi->curr_xfer  // NULL!\n    ... t->len ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer."}],"providerMetadata":{"dateUpdated":"2026-04-02T11:30:51.428Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/84e926c1c272a35ddb9b86842d32fa833a60dfc7"},{"url":"https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57"},{"url":"https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e"}],"title":"spi: tegra210-quad: Protect curr_xfer check in IRQ handler","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23207","datePublished":"2026-02-14T16:27:29.762Z","dateReserved":"2026-01-13T15:37:45.986Z","dateUpdated":"2026-04-02T11:30:51.428Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-02-14 17:15:58","lastModifiedDate":"2026-04-02 12:16:19","problem_types":["CWE-362","CWE-416"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.198","versionEndExcluding":"5.16","matchCriteriaId":"DAE43607-A681-44B2-AFC5-C3A01428F4B4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.160","versionEndExcluding":"6.2","matchCriteriaId":"95004F71-D948-4577-8590-EF2413F4B63D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.120","versionEndExcluding":"6.7","matchCriteriaId":"92DADBAB-4CEC-4775-8A77-A145264C5F80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.63","versionEndExcluding":"6.13","matchCriteriaId":"D41DF6E7-9FF0-4097-B10C-CFA7D39C4A5E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.13","versionEndExcluding":"6.18","matchCriteriaId":"7C298528-1754-41BD-B4E9-84A37AB7BA32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.2","versionEndExcluding":"6.18.10","matchCriteriaId":"0EF65418-FC18-4809-98E5-14B1A2C57DF8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*","matchCriteriaId":"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*","matchCriteriaId":"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F71D92C0-C023-48BD-B3B6-70B638EEE298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*","matchCriteriaId":"13580667-0A98-40CC-B29F-D12790B91BDB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*","matchCriteriaId":"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*","matchCriteriaId":"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*","matchCriteriaId":"F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*","matchCriteriaId":"EB5B7DFC-C36B-45D8-922C-877569FDDF43"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23207","Ordinal":"1","Title":"spi: tegra210-quad: Protect curr_xfer check in IRQ handler","CVE":"CVE-2026-23207","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23207","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi->curr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi->curr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi->curr_xfer  // NULL!\n    ... t->len ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer.","Type":"Description","Title":"spi: tegra210-quad: Protect curr_xfer check in IRQ handler"}]}}}