9.8

CVE-2026-64383

smb: client: fix double-free in SMB2_flush() replay

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 433042a91f9373241307725b52de573933ffedbf
Version < 6e27f40b682a5e42a2daae3ce6d96f0e0e16dedb
Status affected
Version 4f1fffa2376922f3d1d506e49c0fd445b023a28e
Version < 878757163eea684750107a31ea134c103863515d
Status affected
Version 4f1fffa2376922f3d1d506e49c0fd445b023a28e
Version < 3407240cde132a4b72d6429a2625a09a2f78adaf
Status affected
Version 4f1fffa2376922f3d1d506e49c0fd445b023a28e
Version < 013a9a3da46c5dabcf18f65ea6a47874ba12a15d
Status affected
Version 4f1fffa2376922f3d1d506e49c0fd445b023a28e
Version < 4be31c943a3a27a5a0251dbb8f5cb89059ec3d5a
Status affected
Version 6.6.32
Version < 6.6.145
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.8
Status affected
Version 0
Version < 6.8
Status unaffected
Version <= 6.6.*
Version 6.6.145
Status unaffected
Version <= 6.12.*
Version 6.12.96
Status unaffected
Version <= 6.18.*
Version 6.18.39
Status unaffected
Version <= 7.1.*
Version 7.1.4
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.372
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/6e27f40b682a5e42a2daae3ce6d96f0e0e16dedb
https://git.kernel.org/stable/c/878757163eea684750107a31ea134c103863515d
https://git.kernel.org/stable/c/3407240cde132a4b72d6429a2625a09a2f78adaf
https://git.kernel.org/stable/c/013a9a3da46c5dabcf18f65ea6a47874ba12a15d
https://git.kernel.org/stable/c/4be31c943a3a27a5a0251dbb8f5cb89059ec3d5a