CVE-2026-64383
CVE CVE-2026-64383EUVD EUVD-2026-48927Published 2026-07-25T08:50:32.000ZLast changed 2026-08-05T12:41:18.000ZCVSS 9.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_flush() replay SMB2_flush() keeps its response buffer bookkeeping across replay attempts. If a replayable flush response is received and the retry then fails before cifs_send_recv() stores a replacement response, flush_exit will free the stale response pointer a second time. Reinitialize resp_buftype and rsp_iov at the top of the replay loop so cleanup only acts on response state produced by the current attempt. This fixes a double-free without changing replay handling for successful requests.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 4f1fffa2376922f3d1d506e49c0fd445b023a28e <013a9a3da46c5dabcf18f65ea6a47874ba12a15d; 433042a91f9373241307725b52de573933ffedbf <6e27f40b682a5e42a2daae3ce6d96f0e0e16dedb; 6.6.32 <6.6.145; 6.8; patch: 6.12.96; patch: 6.18.39; patch: 7.1.4; patch: 6.6.145; 4f1fffa2376922f3d1d506e49c0fd445b023a28e <878757163eea684750107a31ea134c103863515d; 4f1fffa2376922f3d1d506e49c0fd445b023a28e <3407240cde132a4b72d6429a2625a09a2f78adaf; patch: 7.2-rc1; 4f1fffa2376922f3d1d506e49c0fd445b023a28e <4be31c943a3a27a5a0251dbb8f5cb89059ec3d5a; patch: 0
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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