{"id":"CVE-2026-68351","title":"wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read","summary":"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…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 38e240996a6a78c94ab07d461fd66e361d55c3c4","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 2d05c321d27624c413c950278d2dc8e0f44a8950","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 525036b20ef01d814a7fcd0567d123992e4479fa","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < f74e34e66379e487a09009a4f2d42470051672bd","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 500c36649f270de05a56591fcc1aaaa36687958e","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 9aee949c68dc6dccbc54333537b109c53fe2079f","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < cb7a38810cf25738176dac32dec7a146b3f959cf","Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 4cde55b2feff9504d1f993ab80e84e7ccb62791c","Linux 2.6.37"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:47:50.502434Z"},"published":"2026-08-10","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:55:14.043Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68351","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"}],"tags":["cve.org"],"epss":0.0022,"epssPercentile":0.12607,"ingestedAt":"2026-11-06T18:00:12.609Z","slug":"CVE-2026-68351","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 38e240996a6a78c94ab07d461fd66e361d55c3c4`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 2d05c321d27624c413c950278d2dc8e0f44a8950`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 525036b20ef01d814a7fcd0567d123992e4479fa`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < f74e34e66379e487a09009a4f2d42470051672bd`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 500c36649f270de05a56591fcc1aaaa36687958e`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 9aee949c68dc6dccbc54333537b109c53fe2079f`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < cb7a38810cf25738176dac32dec7a146b3f959cf`\n- `Linux >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c < 4cde55b2feff9504d1f993ab80e84e7ccb62791c`\n- `Linux 2.6.37`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}