{"api_version":"1","generated_at":"2026-07-23T16:48:08+00:00","cve":"CVE-2026-53082","urls":{"html":"https://cve.report/CVE-2026-53082","api":"https://cve.report/api/cve/CVE-2026-53082.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53082","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53082"},"summary":{"title":"net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hamradio: 6pack: fix uninit-value in sixpack_receive_buf\n\nsixpack_receive_buf() does not properly skip bytes with TTY error flags.\nThe while loop iterates through the flags buffer but never advances the\ndata pointer (cp), and passes the original count (including error bytes)\nto sixpack_decode(). This causes sixpack_decode() to process bytes that\nshould have been skipped due to TTY errors.  The TTY layer does not\nguarantee that cp[i] holds a meaningful value when fp[i] is set, so\npassing those positions to sixpack_decode() results in KMSAN reporting\nan uninit-value read.\n\nFix this by processing bytes one at a time, advancing cp on each\niteration, and only passing valid (non-error) bytes to sixpack_decode().\nThis matches the pattern used by slip_receive_buf() and\nmkiss_receive_buf() for the same purpose.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:22","updated_at":"2026-07-14 15:26:52"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2951656b0de00153f2687f3a093890bce72b6215","name":"https://git.kernel.org/stable/c/2951656b0de00153f2687f3a093890bce72b6215","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d9ce2a4b679122397d7f35bad7be46913ad1ca80","name":"https://git.kernel.org/stable/c/d9ce2a4b679122397d7f35bad7be46913ad1ca80","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/578f3aba427c938fecfa0d8c83d9acb213a9b24a","name":"https://git.kernel.org/stable/c/578f3aba427c938fecfa0d8c83d9acb213a9b24a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/987af7625ceb1ee59d70eb0abd7af11c75e45d79","name":"https://git.kernel.org/stable/c/987af7625ceb1ee59d70eb0abd7af11c75e45d79","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e9cf4018d74237d142cd66243c821d13593270f0","name":"https://git.kernel.org/stable/c/e9cf4018d74237d142cd66243c821d13593270f0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bf9a38803b2626b01cc769aaf13485d8650f576f","name":"https://git.kernel.org/stable/c/bf9a38803b2626b01cc769aaf13485d8650f576f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1d3abf0c3ddeefc6f6d913aa129acc06fce8240a","name":"https://git.kernel.org/stable/c/1d3abf0c3ddeefc6f6d913aa129acc06fce8240a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d4cceb5184538613572fb79319453f281b1eeacb","name":"https://git.kernel.org/stable/c/d4cceb5184538613572fb79319453f281b1eeacb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53082","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53082","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1d3abf0c3ddeefc6f6d913aa129acc06fce8240a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d4cceb5184538613572fb79319453f281b1eeacb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2951656b0de00153f2687f3a093890bce72b6215 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e9cf4018d74237d142cd66243c821d13593270f0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.141 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 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":"53082","cve":"CVE-2026-53082","epss":"0.001640000","percentile":"0.059910000","score_date":"2026-07-14","updated_at":"2026-07-15 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/hamradio/6pack.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1d3abf0c3ddeefc6f6d913aa129acc06fce8240a","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"d4cceb5184538613572fb79319453f281b1eeacb","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"2951656b0de00153f2687f3a093890bce72b6215","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e9cf4018d74237d142cd66243c821d13593270f0","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"d9ce2a4b679122397d7f35bad7be46913ad1ca80","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"987af7625ceb1ee59d70eb0abd7af11c75e45d79","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"578f3aba427c938fecfa0d8c83d9acb213a9b24a","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"bf9a38803b2626b01cc769aaf13485d8650f576f","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/hamradio/6pack.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","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":"5.10.258","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.141","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hamradio: 6pack: fix uninit-value in sixpack_receive_buf\n\nsixpack_receive_buf() does not properly skip bytes with TTY error flags.\nThe while loop iterates through the flags buffer but never advances the\ndata pointer (cp), and passes the original count (including error bytes)\nto sixpack_decode(). This causes sixpack_decode() to process bytes that\nshould have been skipped due to TTY errors.  The TTY layer does not\nguarantee that cp[i] holds a meaningful value when fp[i] is set, so\npassing those positions to sixpack_decode() results in KMSAN reporting\nan uninit-value read.\n\nFix this by processing bytes one at a time, advancing cp on each\niteration, and only passing valid (non-error) bytes to sixpack_decode().\nThis matches the pattern used by slip_receive_buf() and\nmkiss_receive_buf() for the same purpose."}],"providerMetadata":{"dateUpdated":"2026-06-24T16:30:22.817Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1d3abf0c3ddeefc6f6d913aa129acc06fce8240a"},{"url":"https://git.kernel.org/stable/c/d4cceb5184538613572fb79319453f281b1eeacb"},{"url":"https://git.kernel.org/stable/c/2951656b0de00153f2687f3a093890bce72b6215"},{"url":"https://git.kernel.org/stable/c/e9cf4018d74237d142cd66243c821d13593270f0"},{"url":"https://git.kernel.org/stable/c/d9ce2a4b679122397d7f35bad7be46913ad1ca80"},{"url":"https://git.kernel.org/stable/c/987af7625ceb1ee59d70eb0abd7af11c75e45d79"},{"url":"https://git.kernel.org/stable/c/578f3aba427c938fecfa0d8c83d9acb213a9b24a"},{"url":"https://git.kernel.org/stable/c/bf9a38803b2626b01cc769aaf13485d8650f576f"}],"title":"net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53082","datePublished":"2026-06-24T16:30:22.817Z","dateReserved":"2026-06-09T07:44:35.383Z","dateUpdated":"2026-06-24T16:30:22.817Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:22","lastModifiedDate":"2026-07-14 15:26:52","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53082","Ordinal":"1","Title":"net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf","CVE":"CVE-2026-53082","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53082","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hamradio: 6pack: fix uninit-value in sixpack_receive_buf\n\nsixpack_receive_buf() does not properly skip bytes with TTY error flags.\nThe while loop iterates through the flags buffer but never advances the\ndata pointer (cp), and passes the original count (including error bytes)\nto sixpack_decode(). This causes sixpack_decode() to process bytes that\nshould have been skipped due to TTY errors.  The TTY layer does not\nguarantee that cp[i] holds a meaningful value when fp[i] is set, so\npassing those positions to sixpack_decode() results in KMSAN reporting\nan uninit-value read.\n\nFix this by processing bytes one at a time, advancing cp on each\niteration, and only passing valid (non-error) bytes to sixpack_decode().\nThis matches the pattern used by slip_receive_buf() and\nmkiss_receive_buf() for the same purpose.","Type":"Description","Title":"net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf"}]}}}