{"api_version":"1","generated_at":"2026-09-17T23:31:14+00:00","cve":"CVE-2026-90348","urls":{"html":"https://cve.report/CVE-2026-90348","api":"https://cve.report/api/cve/CVE-2026-90348.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90348","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90348"},"summary":{"title":"wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump\n\nOn WCN3990/SNOC the MSA region is mapped with devm_memremap(MEMREMAP_WT).\nOn arm64 such a mapping is not Normal-cacheable, so unaligned accesses to\nit are not permitted. ath10k_msa_dump_memory() copies the region with a\nplain memcpy(), whose optimized __pi_memcpy_generic implementation issues\nwide/unaligned loads. This triggers an alignment fault (FSC=0x21) Oops in\nath10k_snoc_fw_crashed_dump() while collecting the devcoredump:\n\n  Unable to handle kernel paging request ... FSC=0x21: alignment fault\n  pc : __pi_memcpy_generic\n  lr : ath10k_snoc_fw_crashed_dump [ath10k_snoc]\n\nThe Oops both leaves the firmware RAM dump buffer zeroed (no dump is\ncaptured) and crashes the kernel, which in turn breaks modem SSR\nrecovery.\n\nUse memcpy_fromio(), which only performs accesses that are valid for such\na device-memory mapping. The generic memcpy_fromio() implementation aligns\nthe source before issuing word-sized reads and stores the destination with\nput_unaligned(), so it is also safe for the coherent DMA allocation used on\nthe non-reserved-memory path. ath11k and ath12k use the same pattern\nwhen copying target memory into crash dumps, so call it unconditionally\nhere too.\nThe MEMREMAP_WT pointer is a plain void *, so an explicit __iomem cast is\nneeded; use __force to keep sparse happy.\n\nTested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.3.7.c5-00107-QCAHLSWMTPL-1","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:33","updated_at":"2026-09-17 17:17:33"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7039825a7479df637c4f5d546cb0e1cec18cd8e1","name":"https://git.kernel.org/stable/c/7039825a7479df637c4f5d546cb0e1cec18cd8e1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4f25071afe9218aaae1c63fbf75e229aa6405319","name":"https://git.kernel.org/stable/c/4f25071afe9218aaae1c63fbf75e229aa6405319","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/045d1bfb72d2631ab9ec74afa491aa788ebb57aa","name":"https://git.kernel.org/stable/c/045d1bfb72d2631ab9ec74afa491aa788ebb57aa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/838cab267ce9a975776e022f25094f8cbe1625d2","name":"https://git.kernel.org/stable/c/838cab267ce9a975776e022f25094f8cbe1625d2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eb946595a58decdb4cab1b5f3c972ae66f41f1c8","name":"https://git.kernel.org/stable/c/eb946595a58decdb4cab1b5f3c972ae66f41f1c8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fed1f662c9f9fd19eeab6c01966b7b5a33804420","name":"https://git.kernel.org/stable/c/fed1f662c9f9fd19eeab6c01966b7b5a33804420","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/152e894e90716163c646d70f86b3afeb70442783","name":"https://git.kernel.org/stable/c/152e894e90716163c646d70f86b3afeb70442783","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e5bc3658da9c8a535e3fa5c0c875b2a456954e81","name":"https://git.kernel.org/stable/c/e5bc3658da9c8a535e3fa5c0c875b2a456954e81","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90348","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90348","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 e5bc3658da9c8a535e3fa5c0c875b2a456954e81 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 fed1f662c9f9fd19eeab6c01966b7b5a33804420 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 838cab267ce9a975776e022f25094f8cbe1625d2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 eb946595a58decdb4cab1b5f3c972ae66f41f1c8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 152e894e90716163c646d70f86b3afeb70442783 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 7039825a7479df637c4f5d546cb0e1cec18cd8e1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 045d1bfb72d2631ab9ec74afa491aa788ebb57aa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f14b73c38431a6a1ed24de568e18ed89b7082e2 4f25071afe9218aaae1c63fbf75e229aa6405319 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.5 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 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 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/net/wireless/ath/ath10k/snoc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e5bc3658da9c8a535e3fa5c0c875b2a456954e81","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"fed1f662c9f9fd19eeab6c01966b7b5a33804420","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"838cab267ce9a975776e022f25094f8cbe1625d2","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"eb946595a58decdb4cab1b5f3c972ae66f41f1c8","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"152e894e90716163c646d70f86b3afeb70442783","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"7039825a7479df637c4f5d546cb0e1cec18cd8e1","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"045d1bfb72d2631ab9ec74afa491aa788ebb57aa","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"},{"lessThan":"4f25071afe9218aaae1c63fbf75e229aa6405319","status":"affected","version":"3f14b73c38431a6a1ed24de568e18ed89b7082e2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath10k/snoc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.5"},{"lessThan":"5.5","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":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","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":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump\n\nOn WCN3990/SNOC the MSA region is mapped with devm_memremap(MEMREMAP_WT).\nOn arm64 such a mapping is not Normal-cacheable, so unaligned accesses to\nit are not permitted. ath10k_msa_dump_memory() copies the region with a\nplain memcpy(), whose optimized __pi_memcpy_generic implementation issues\nwide/unaligned loads. This triggers an alignment fault (FSC=0x21) Oops in\nath10k_snoc_fw_crashed_dump() while collecting the devcoredump:\n\n  Unable to handle kernel paging request ... FSC=0x21: alignment fault\n  pc : __pi_memcpy_generic\n  lr : ath10k_snoc_fw_crashed_dump [ath10k_snoc]\n\nThe Oops both leaves the firmware RAM dump buffer zeroed (no dump is\ncaptured) and crashes the kernel, which in turn breaks modem SSR\nrecovery.\n\nUse memcpy_fromio(), which only performs accesses that are valid for such\na device-memory mapping. The generic memcpy_fromio() implementation aligns\nthe source before issuing word-sized reads and stores the destination with\nput_unaligned(), so it is also safe for the coherent DMA allocation used on\nthe non-reserved-memory path. ath11k and ath12k use the same pattern\nwhen copying target memory into crash dumps, so call it unconditionally\nhere too.\nThe MEMREMAP_WT pointer is a plain void *, so an explicit __iomem cast is\nneeded; use __force to keep sparse happy.\n\nTested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.3.7.c5-00107-QCAHLSWMTPL-1"}],"providerMetadata":{"dateUpdated":"2026-09-17T16:08:56.885Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e5bc3658da9c8a535e3fa5c0c875b2a456954e81"},{"url":"https://git.kernel.org/stable/c/fed1f662c9f9fd19eeab6c01966b7b5a33804420"},{"url":"https://git.kernel.org/stable/c/838cab267ce9a975776e022f25094f8cbe1625d2"},{"url":"https://git.kernel.org/stable/c/eb946595a58decdb4cab1b5f3c972ae66f41f1c8"},{"url":"https://git.kernel.org/stable/c/152e894e90716163c646d70f86b3afeb70442783"},{"url":"https://git.kernel.org/stable/c/7039825a7479df637c4f5d546cb0e1cec18cd8e1"},{"url":"https://git.kernel.org/stable/c/045d1bfb72d2631ab9ec74afa491aa788ebb57aa"},{"url":"https://git.kernel.org/stable/c/4f25071afe9218aaae1c63fbf75e229aa6405319"}],"title":"wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90348","datePublished":"2026-09-17T16:08:56.885Z","dateReserved":"2026-09-11T19:38:34.805Z","dateUpdated":"2026-09-17T16:08:56.885Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:33","lastModifiedDate":"2026-09-17 17:17:33","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90348","Ordinal":"1","Title":"wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump","CVE":"CVE-2026-90348","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90348","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump\n\nOn WCN3990/SNOC the MSA region is mapped with devm_memremap(MEMREMAP_WT).\nOn arm64 such a mapping is not Normal-cacheable, so unaligned accesses to\nit are not permitted. ath10k_msa_dump_memory() copies the region with a\nplain memcpy(), whose optimized __pi_memcpy_generic implementation issues\nwide/unaligned loads. This triggers an alignment fault (FSC=0x21) Oops in\nath10k_snoc_fw_crashed_dump() while collecting the devcoredump:\n\n  Unable to handle kernel paging request ... FSC=0x21: alignment fault\n  pc : __pi_memcpy_generic\n  lr : ath10k_snoc_fw_crashed_dump [ath10k_snoc]\n\nThe Oops both leaves the firmware RAM dump buffer zeroed (no dump is\ncaptured) and crashes the kernel, which in turn breaks modem SSR\nrecovery.\n\nUse memcpy_fromio(), which only performs accesses that are valid for such\na device-memory mapping. The generic memcpy_fromio() implementation aligns\nthe source before issuing word-sized reads and stores the destination with\nput_unaligned(), so it is also safe for the coherent DMA allocation used on\nthe non-reserved-memory path. ath11k and ath12k use the same pattern\nwhen copying target memory into crash dumps, so call it unconditionally\nhere too.\nThe MEMREMAP_WT pointer is a plain void *, so an explicit __iomem cast is\nneeded; use __force to keep sparse happy.\n\nTested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.3.7.c5-00107-QCAHLSWMTPL-1","Type":"Description","Title":"wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump"}]}}}