CVE-2026-64597
smb: client: fix double-free in SMB2_close() replay
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_close() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_close_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 6, 2026 |
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Affected Versions
Linux / Linux
433042a91f9373241307725b52de573933ffedbf < 037511726228aaf165c7067ff2bfc88eaecdf1f3 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 0aa97edf7c347c0f54e7e60c4740574b8120c66a 4f1fffa2376922f3d1d506e49c0fd445b023a28e < d15d83125007f673aec4323e1bbbaaffbe87ea13 4f1fffa2376922f3d1d506e49c0fd445b023a28e < b18ed621dbfceecea5539848cddcb9272c9a61e1 4f1fffa2376922f3d1d506e49c0fd445b023a28e < f96e1cdcb63ed3321142ff2fcdf784e32cda8fee 6.6.32 < 6.6.145
Linux / Linux
6.8
References
git.kernel.org: https://git.kernel.org/stable/c/037511726228aaf165c7067ff2bfc88eaecdf1f3 git.kernel.org: https://git.kernel.org/stable/c/0aa97edf7c347c0f54e7e60c4740574b8120c66a git.kernel.org: https://git.kernel.org/stable/c/d15d83125007f673aec4323e1bbbaaffbe87ea13 git.kernel.org: https://git.kernel.org/stable/c/b18ed621dbfceecea5539848cddcb9272c9a61e1 git.kernel.org: https://git.kernel.org/stable/c/f96e1cdcb63ed3321142ff2fcdf784e32cda8fee