9.8

CVE-2026-43379

ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()

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

ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()

opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being
accessed after rcu_read_unlock() has been called. This creates a
race condition where the memory could be freed by a concurrent
writer between the unlock and the subsequent pointer dereferences
(opinfo->is_lease, etc.), leading to a use-after-free.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 27b40b7bfcd121fe13a150ffe11957630cf49246
Version < bf4d66d72e4a9e268c1012c331ce9eaedb5e2086
Status affected
Version 5fb282ba4fef8985a5acf2b32681f2ec07732561
Version < 960699317d39f46611f4ebeb69edc567c1f4e6b6
Status affected
Version 5fb282ba4fef8985a5acf2b32681f2ec07732561
Version < dbbd328cf58261ca239756fe1c0d10c9518d3399
Status affected
Version 5fb282ba4fef8985a5acf2b32681f2ec07732561
Version < b3568347c51c46e2cabc356bc34676df98296619
Status affected
Version 5fb282ba4fef8985a5acf2b32681f2ec07732561
Version < eac3361e3d5dd8067b3258c69615888eb45e9f25
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.9
Status affected
Version 0
Version < 6.9
Status unaffected
Version <= 6.6.*
Version 6.6.130
Status unaffected
Version <= 6.12.*
Version 6.12.78
Status unaffected
Version <= 6.18.*
Version 6.18.19
Status unaffected
Version <= 6.19.*
Version 6.19.9
Status unaffected
Version <= *
Version 7.0
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 0.06% 0.189
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.