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CVE-2026-89794

ksmbd: zero pipe read compound padding

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: zero pipe read compound padding

Compound response handling extends the last response iov to an eight-byte
boundary.

smb2_read_pipe() allocates only the payload size, so the alignment padding
can expose up to seven bytes of uninitialized kernel heap memory.

Allocate the aligned size and clear the unused tail before pinning the
response buffer.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version < f188a400dd5285fec5a84548fe8dca49eee01155
Status affected
Version e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version < d83a9de7cecd401c3d3e00ed6371194dcd7313e4
Status affected
Version e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version < be15b8da4a82cf1e1f9880b2661b90770606eec1
Status affected
Version e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version < 73f860489e3be2245598d1819226304fc5b87291
Status affected
Version f2283680a80571ca82d710bc6ecd8f8beac67d63
Status affected
Version 9f297df20d93411c0b4ddad7f88ba04a7cd36e77
Status affected
Version 5.15.145
Version < 5.16
Status affected
Version 6.1.71
Version < 6.2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.6
Status affected
Version 0
Version < 6.6
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.51
Status unaffected
Version <= 7.2.*
Version 7.2.5
Status unaffected
Version <= *
Version 7.3-rc2
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 0.2% 0.102
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/f188a400dd5285fec5a84548fe8dca49eee01155
https://git.kernel.org/stable/c/d83a9de7cecd401c3d3e00ed6371194dcd7313e4
https://git.kernel.org/stable/c/be15b8da4a82cf1e1f9880b2661b90770606eec1
https://git.kernel.org/stable/c/73f860489e3be2245598d1819226304fc5b87291