{"id":"CVE-2026-68351","state":"PUBLISHED","title":"wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: carl9170: bound memcpy length in cmd callback to prevent OOB read\n\nWhen the firmware sends a command response with a length mismatch,\ncarl9170_cmd_callback() logs the mismatch and calls carl9170_restart()\nbut then falls through to memcpy(ar->readbuf, buffer + 4, len - 4).\nSince len comes from the firmware and can exceed ar->readlen, this\ncopies more data than the readbuf was allocated for.\n\nBound the memcpy to min(len - 4, ar->readlen) so that the response\nis still completed -- avoiding repeated restarts from queued garbage --\nwhile preventing an overread past the response buffer.","publishedAt":"2026-08-10T12:03:28.312Z","updatedAt":"2026-08-19T16:33:53.098Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"38e240996a6a78c94ab07d461fd66e361d55c3c4","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"2d05c321d27624c413c950278d2dc8e0f44a8950","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"525036b20ef01d814a7fcd0567d123992e4479fa","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"f74e34e66379e487a09009a4f2d42470051672bd","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"500c36649f270de05a56591fcc1aaaa36687958e","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"9aee949c68dc6dccbc54333537b109c53fe2079f","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"cb7a38810cf25738176dac32dec7a146b3f959cf","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"4cde55b2feff9504d1f993ab80e84e7ccb62791c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/carl9170/rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/carl9170/rx.c"]}],"references":["https://git.kernel.org/stable/c/38e240996a6a78c94ab07d461fd66e361d55c3c4","https://git.kernel.org/stable/c/2d05c321d27624c413c950278d2dc8e0f44a8950","https://git.kernel.org/stable/c/525036b20ef01d814a7fcd0567d123992e4479fa","https://git.kernel.org/stable/c/f74e34e66379e487a09009a4f2d42470051672bd","https://git.kernel.org/stable/c/500c36649f270de05a56591fcc1aaaa36687958e","https://git.kernel.org/stable/c/9aee949c68dc6dccbc54333537b109c53fe2079f","https://git.kernel.org/stable/c/cb7a38810cf25738176dac32dec7a146b3f959cf","https://git.kernel.org/stable/c/4cde55b2feff9504d1f993ab80e84e7ccb62791c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68351.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68351","state":"PUBLISHED","datePublished":"2026-08-10T12:03:28.312Z","dateUpdated":"2026-08-19T16:33:53.098Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.384Z"},"containers":{"cna":{"title":"wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: carl9170: bound memcpy length in cmd callback to prevent OOB read\n\nWhen the firmware sends a command response with a length mismatch,\ncarl9170_cmd_callback() logs the mismatch and calls carl9170_restart()\nbut then falls through to memcpy(ar->readbuf, buffer + 4, len - 4).\nSince len comes from the firmware and can exceed ar->readlen, this\ncopies more data than the readbuf was allocated for.\n\nBound the memcpy to min(len - 4, ar->readlen) so that the response\nis still completed -- avoiding repeated restarts from queued garbage --\nwhile preventing an overread past the response buffer."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"38e240996a6a78c94ab07d461fd66e361d55c3c4","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"2d05c321d27624c413c950278d2dc8e0f44a8950","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"525036b20ef01d814a7fcd0567d123992e4479fa","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"f74e34e66379e487a09009a4f2d42470051672bd","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"500c36649f270de05a56591fcc1aaaa36687958e","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"9aee949c68dc6dccbc54333537b109c53fe2079f","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"cb7a38810cf25738176dac32dec7a146b3f959cf","versionType":"git"},{"version":"a84fab3cbfdc427e7d366f1cc844f27b2084c26c","status":"affected","lessThan":"4cde55b2feff9504d1f993ab80e84e7ccb62791c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/carl9170/rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/carl9170/rx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/38e240996a6a78c94ab07d461fd66e361d55c3c4"},{"url":"https://git.kernel.org/stable/c/2d05c321d27624c413c950278d2dc8e0f44a8950"},{"url":"https://git.kernel.org/stable/c/525036b20ef01d814a7fcd0567d123992e4479fa"},{"url":"https://git.kernel.org/stable/c/f74e34e66379e487a09009a4f2d42470051672bd"},{"url":"https://git.kernel.org/stable/c/500c36649f270de05a56591fcc1aaaa36687958e"},{"url":"https://git.kernel.org/stable/c/9aee949c68dc6dccbc54333537b109c53fe2079f"},{"url":"https://git.kernel.org/stable/c/cb7a38810cf25738176dac32dec7a146b3f959cf"},{"url":"https://git.kernel.org/stable/c/4cde55b2feff9504d1f993ab80e84e7ccb62791c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:33:53.098Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}