Author: mav
Date: Fri Aug  3 01:17:14 2018
New Revision: 337218
URL: https://svnweb.freebsd.org/changeset/base/337218

Log:
  7261 nvlist code should enforce name length limit
  
  illumos/illumos-gate@48dd5e630c9b1773b7b10d08a3b90b6c9062d713
  
  Reviewed by: Sebastien Roy <[email protected]>
  Reviewed by: George Wilson <[email protected]>
  Reviewed by: Robert Mustacchi <[email protected]>
  Approved by: Dan McDonald <[email protected]>
  Author: Matthew Ahrens <[email protected]>

Modified:
  vendor-sys/illumos/dist/common/nvpair/nvpair.c

Modified: vendor-sys/illumos/dist/common/nvpair/nvpair.c
==============================================================================
--- vendor-sys/illumos/dist/common/nvpair/nvpair.c      Fri Aug  3 01:09:12 
2018        (r337217)
+++ vendor-sys/illumos/dist/common/nvpair/nvpair.c      Fri Aug  3 01:17:14 
2018        (r337218)
@@ -910,6 +910,8 @@ nvlist_add_common(nvlist_t *nvl, const char *name,
 
        /* calculate sizes of the nvpair elements and the nvpair itself */
        name_sz = strlen(name) + 1;
+       if (name_sz >= 1ULL << (sizeof (nvp->nvp_name_sz) * NBBY - 1))
+               return (EINVAL);
 
        nvp_sz = NVP_SIZE_CALC(name_sz, value_sz);
 
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