{"api_version":"1","generated_at":"2026-09-17T14:27:19+00:00","cve":"CVE-2026-89865","urls":{"html":"https://cve.report/CVE-2026-89865","api":"https://cve.report/api/cve/CVE-2026-89865.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89865","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89865"},"summary":{"title":"scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers\n\nThe FRU and I2C bsg handlers stage their transfer in a DMA_POOL_SIZE\n(256-byte) bounce buffer obtained from dma_pool_alloc(), which does not\nzero the allocation. They initialize only a few leading bytes before\nhanding the buffer to qla2x00_write_sfp().\n\nqla2x00_write_sfp() can override the transfer length with a user-supplied\nvalue:\n\n\tif (len == 1)\n\t\topt |= BIT_0;\n\tif (opt & BIT_0)\n\t\tlen = *sfp;\n\n*sfp is the first byte of the (user-controlled) payload, so len can grow\nup to 255. The device then DMA-reads len bytes from the 256-byte pool\nbuffer. Since only a small prefix was written\n(e.g. MAX_FRU_SIZE == 36 bytes for a FRU version, one byte for a FRU\nstatus register), the hardware reads past the initialized region and\nwrites up to ~219 bytes of stale DMA-pool heap memory to the device\nflash.\n\nAllocate the buffer with dma_pool_zalloc() in all five FRU/I2C handlers\nso any bytes beyond the initialized data are zero rather than stale heap\ncontents.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:16:54","updated_at":"2026-09-16 11:16:54"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/84bde5ce4038d9ad811e5c994305bbfcbd7a9f79","name":"https://git.kernel.org/stable/c/84bde5ce4038d9ad811e5c994305bbfcbd7a9f79","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a476377a66897549dd49bee319f4df66623417b7","name":"https://git.kernel.org/stable/c/a476377a66897549dd49bee319f4df66623417b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/09703bc7c0be3a7a155b0ff5f21f6765ba3f519c","name":"https://git.kernel.org/stable/c/09703bc7c0be3a7a155b0ff5f21f6765ba3f519c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b157256c28086c434afd70cc78bf9b4d8caf1276","name":"https://git.kernel.org/stable/c/b157256c28086c434afd70cc78bf9b4d8caf1276","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a5501c42256235523c4dddf799f032dfbf4f4c77","name":"https://git.kernel.org/stable/c/a5501c42256235523c4dddf799f032dfbf4f4c77","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/581590f560b74399151b3cbc88574424c2f3d2dc","name":"https://git.kernel.org/stable/c/581590f560b74399151b3cbc88574424c2f3d2dc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8","name":"https://git.kernel.org/stable/c/97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc","name":"https://git.kernel.org/stable/c/b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89865","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89865","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 a476377a66897549dd49bee319f4df66623417b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 09703bc7c0be3a7a155b0ff5f21f6765ba3f519c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 84bde5ce4038d9ad811e5c994305bbfcbd7a9f79 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 581590f560b74399151b3cbc88574424c2f3d2dc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 b157256c28086c434afd70cc78bf9b4d8caf1276 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 a5501c42256235523c4dddf799f032dfbf4f4c77 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 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/scsi/qla2xxx/qla_bsg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a476377a66897549dd49bee319f4df66623417b7","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"09703bc7c0be3a7a155b0ff5f21f6765ba3f519c","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"84bde5ce4038d9ad811e5c994305bbfcbd7a9f79","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"581590f560b74399151b3cbc88574424c2f3d2dc","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"b157256c28086c434afd70cc78bf9b4d8caf1276","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"a5501c42256235523c4dddf799f032dfbf4f4c77","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"},{"lessThan":"b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc","status":"affected","version":"697a4bc69159c3396035b0506ffa55c4b2d0b1f4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/scsi/qla2xxx/qla_bsg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","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":"5.10.270","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"3.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers\n\nThe FRU and I2C bsg handlers stage their transfer in a DMA_POOL_SIZE\n(256-byte) bounce buffer obtained from dma_pool_alloc(), which does not\nzero the allocation. They initialize only a few leading bytes before\nhanding the buffer to qla2x00_write_sfp().\n\nqla2x00_write_sfp() can override the transfer length with a user-supplied\nvalue:\n\n\tif (len == 1)\n\t\topt |= BIT_0;\n\tif (opt & BIT_0)\n\t\tlen = *sfp;\n\n*sfp is the first byte of the (user-controlled) payload, so len can grow\nup to 255. The device then DMA-reads len bytes from the 256-byte pool\nbuffer. Since only a small prefix was written\n(e.g. MAX_FRU_SIZE == 36 bytes for a FRU version, one byte for a FRU\nstatus register), the hardware reads past the initialized region and\nwrites up to ~219 bytes of stale DMA-pool heap memory to the device\nflash.\n\nAllocate the buffer with dma_pool_zalloc() in all five FRU/I2C handlers\nso any bytes beyond the initialized data are zero rather than stale heap\ncontents."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:31:35.758Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a476377a66897549dd49bee319f4df66623417b7"},{"url":"https://git.kernel.org/stable/c/09703bc7c0be3a7a155b0ff5f21f6765ba3f519c"},{"url":"https://git.kernel.org/stable/c/97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8"},{"url":"https://git.kernel.org/stable/c/84bde5ce4038d9ad811e5c994305bbfcbd7a9f79"},{"url":"https://git.kernel.org/stable/c/581590f560b74399151b3cbc88574424c2f3d2dc"},{"url":"https://git.kernel.org/stable/c/b157256c28086c434afd70cc78bf9b4d8caf1276"},{"url":"https://git.kernel.org/stable/c/a5501c42256235523c4dddf799f032dfbf4f4c77"},{"url":"https://git.kernel.org/stable/c/b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc"}],"title":"scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89865","datePublished":"2026-09-16T10:31:35.758Z","dateReserved":"2026-09-11T19:38:34.771Z","dateUpdated":"2026-09-16T10:31:35.758Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:16:54","lastModifiedDate":"2026-09-16 11:16:54","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89865","Ordinal":"1","Title":"scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers","CVE":"CVE-2026-89865","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89865","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers\n\nThe FRU and I2C bsg handlers stage their transfer in a DMA_POOL_SIZE\n(256-byte) bounce buffer obtained from dma_pool_alloc(), which does not\nzero the allocation. They initialize only a few leading bytes before\nhanding the buffer to qla2x00_write_sfp().\n\nqla2x00_write_sfp() can override the transfer length with a user-supplied\nvalue:\n\n\tif (len == 1)\n\t\topt |= BIT_0;\n\tif (opt & BIT_0)\n\t\tlen = *sfp;\n\n*sfp is the first byte of the (user-controlled) payload, so len can grow\nup to 255. The device then DMA-reads len bytes from the 256-byte pool\nbuffer. Since only a small prefix was written\n(e.g. MAX_FRU_SIZE == 36 bytes for a FRU version, one byte for a FRU\nstatus register), the hardware reads past the initialized region and\nwrites up to ~219 bytes of stale DMA-pool heap memory to the device\nflash.\n\nAllocate the buffer with dma_pool_zalloc() in all five FRU/I2C handlers\nso any bytes beyond the initialized data are zero rather than stale heap\ncontents.","Type":"Description","Title":"scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers"}]}}}