Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 38e240996a6a78c94ab07d461fd66e361d55c3c4; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 2d05c321d27624c413c950278d2dc8e0f44a8950; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 525036b20ef01d814a7fcd0567d123992e4479fa; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before f74e34e66379e487a09009a4f2d42470051672bd; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 500c36649f270de05a56591fcc1aaaa36687958e; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 9aee949c68dc6dccbc54333537b109c53fe2079f; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before cb7a38810cf25738176dac32dec7a146b3f959cf; affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c before 4cde55b2feff9504d1f993ab80e84e7ccb62791c |
| Linux / Linux | affected 2.6.37; unaffected 0 before 2.6.37; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
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