CVEvulnerability
CVE-2026-98453
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: close handle after create-context parsing failure
SMB2_open() accounts a successful CREATE response as a remote open before
parsing its create contexts. If smb2_parse_contexts() rejects malformed
context data, SMB2_open() returns without closing the handle, leaving the
server-side handle open and num_remote_opens elevated.
Close the handle after a post-CREATE context parsing failure so the error
path releases the remote resource and balances the open count.
References
- https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b git.kernel.org
- https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f git.kernel.org
- https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb git.kernel.org
- https://git.kernel.org/stable/c/eaa97a196a107d4ef8775df2248181624151812e git.kernel.org
- https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45 git.kernel.org