CVE-2026-98453smb: client: close handle after create-context parsing failure
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from af1689a9b7701d9907dfc84d2a4b57c4bc907144 before 80c67cc71d32ccafc89a29b669243b40d81b930f; from af1689a9b7701d9907dfc84d2a4b57c4bc907144 before f09875ff901e933e7b22c913daf51d21e9d93a45; from af1689a9b7701d9907dfc84d2a4b57c4bc907144 before cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb; from af1689a9b7701d9907dfc84d2a4b57c4bc907144 before 566820af017e81497fb5e9d3ad6e7ffe2828bc8b; 6726429c18c62dbf5e96ebbd522f262e016553fb; 13fb0fc4917621f3dfa285a27eaf7151d770b5e5; 890bc4fac3c0973a49cac35f634579bebba7fe48; 1ae3c59355dc9882e09c020afe8ffbd895ad0f29; and 6 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f
- https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45
- https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb
- https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.