smb: client: fix query_info() replay double-free
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.5%
exploitation probability
0.5%top 63% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix query_info() replay double-free
A response-bearing attempt can return a replayable error and free its
response buffer. If SMB2_query_info_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/100fb7c455fa86d248b8bd7bb9de757c192870b4https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5ehttps://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440dbhttps://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca