CVE-2026-98453: vulnerability in Linux
smb: client: close handle after create-context parsing failure
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
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References
https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8bhttps://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930fhttps://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8ebhttps://git.kernel.org/stable/c/eaa97a196a107d4ef8775df2248181624151812ehttps://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45