{"api_version":"1","generated_at":"2026-07-04T21:07:16+00:00","cve":"CVE-2026-53338","urls":{"html":"https://cve.report/CVE-2026-53338","api":"https://cve.report/api/cve/CVE-2026-53338.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53338","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53338"},"summary":{"title":"net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()\n\nof_reserved_mem_lookup() may return NULL if the reserved memory region\nreferenced by the \"memory-region\" phandle is not found in the reserved\nmemory table (e.g. due to a misconfigured DTS or a removed\nmemory-region node).  The current code dereferences the returned\npointer without checking for NULL, leading to a kernel NULL pointer\ndereference at the following lines:\n\n    dma_addr = rmem->base;                          // line 1156\n    num_desc = div_u64(rmem->size, buf_size);       // line 1160\n\nAdd a NULL check after of_reserved_mem_lookup() and return -ENODEV if\nthe lookup fails, which is consistent with the existing error handling\nfor of_parse_phandle() failure in the same code block.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-01 14:16:41","updated_at":"2026-07-01 14:16:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/01f7d4b504580664d36faea5671cde5e3f0d8a5b","name":"https://git.kernel.org/stable/c/01f7d4b504580664d36faea5671cde5e3f0d8a5b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39","name":"https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d","name":"https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53338","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53338","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b 01f7d4b504580664d36faea5671cde5e3f0d8a5b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b cdb96c42db7b256348f9b57718debfaa4bca6b39 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b f9f25118faa4dd2b6e3d14a03d123bbdbd59925d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53338","cve":"CVE-2026-53338","epss":"0.001540000","percentile":"0.049660000","score_date":"2026-07-03","updated_at":"2026-07-04 00:02:18"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/airoha/airoha_eth.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"01f7d4b504580664d36faea5671cde5e3f0d8a5b","status":"affected","version":"3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b","versionType":"git"},{"lessThan":"cdb96c42db7b256348f9b57718debfaa4bca6b39","status":"affected","version":"3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b","versionType":"git"},{"lessThan":"f9f25118faa4dd2b6e3d14a03d123bbdbd59925d","status":"affected","version":"3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/airoha/airoha_eth.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()\n\nof_reserved_mem_lookup() may return NULL if the reserved memory region\nreferenced by the \"memory-region\" phandle is not found in the reserved\nmemory table (e.g. due to a misconfigured DTS or a removed\nmemory-region node).  The current code dereferences the returned\npointer without checking for NULL, leading to a kernel NULL pointer\ndereference at the following lines:\n\n    dma_addr = rmem->base;                          // line 1156\n    num_desc = div_u64(rmem->size, buf_size);       // line 1160\n\nAdd a NULL check after of_reserved_mem_lookup() and return -ENODEV if\nthe lookup fails, which is consistent with the existing error handling\nfor of_parse_phandle() failure in the same code block."}],"providerMetadata":{"dateUpdated":"2026-07-01T13:32:21.147Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/01f7d4b504580664d36faea5671cde5e3f0d8a5b"},{"url":"https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39"},{"url":"https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d"}],"title":"net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53338","datePublished":"2026-07-01T13:32:21.147Z","dateReserved":"2026-06-09T07:44:35.399Z","dateUpdated":"2026-07-01T13:32:21.147Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-01 14:16:41","lastModifiedDate":"2026-07-01 14:16:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53338","Ordinal":"1","Title":"net: airoha: Add NULL check for of_reserved_mem_lookup() in airo","CVE":"CVE-2026-53338","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53338","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()\n\nof_reserved_mem_lookup() may return NULL if the reserved memory region\nreferenced by the \"memory-region\" phandle is not found in the reserved\nmemory table (e.g. due to a misconfigured DTS or a removed\nmemory-region node).  The current code dereferences the returned\npointer without checking for NULL, leading to a kernel NULL pointer\ndereference at the following lines:\n\n    dma_addr = rmem->base;                          // line 1156\n    num_desc = div_u64(rmem->size, buf_size);       // line 1160\n\nAdd a NULL check after of_reserved_mem_lookup() and return -ENODEV if\nthe lookup fails, which is consistent with the existing error handling\nfor of_parse_phandle() failure in the same code block.","Type":"Description","Title":"net: airoha: Add NULL check for of_reserved_mem_lookup() in airo"}]}}}