smb: client: fix double-free in SMB2_close() replay
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.4%
exploitation probability
0.4%top 70% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/037511726228aaf165c7067ff2bfc88eaecdf1f3https://git.kernel.org/stable/c/0aa97edf7c347c0f54e7e60c4740574b8120c66ahttps://git.kernel.org/stable/c/b18ed621dbfceecea5539848cddcb9272c9a61e1https://git.kernel.org/stable/c/d15d83125007f673aec4323e1bbbaaffbe87ea13https://git.kernel.org/stable/c/f96e1cdcb63ed3321142ff2fcdf784e32cda8fee