-

CVE-2026-92495

RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap

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

RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap

bnxt_re_mmap() rejects VM_WRITE for the DBR_PAGE and TOGGLE_PAGE mmap
flags, but a read-only mapping can still retain VM_MAYWRITE. nd later
be upgraded with mprotect(PROT_WRITE). This can bypass the write check
that only runs at mmap time.

Clear VM_MAYWRITE before vm_insert_page() in the shared DBR/toggle-page
branch, matching the existing policy that userspace writes are not
expected for these pages.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version ea222485788208cd79bad42d25aae9232b33a934
Version < 5361fb1e5bc246f9a2c0721543f72c8dac200769
Status affected
Version ea222485788208cd79bad42d25aae9232b33a934
Version < 13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4
Status affected
Version ea222485788208cd79bad42d25aae9232b33a934
Version < 0afbfe019c881483337d9f8304e678af05ebe7cc
Status affected
Version ea222485788208cd79bad42d25aae9232b33a934
Version < 518df61b9b0a5b288dfa72c87246045329c18b8c
Status affected
Version ea222485788208cd79bad42d25aae9232b33a934
Version < 9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.6
Status affected
Version 0
Version < 6.6
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.115
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/5361fb1e5bc246f9a2c0721543f72c8dac200769
https://git.kernel.org/stable/c/13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4
https://git.kernel.org/stable/c/0afbfe019c881483337d9f8304e678af05ebe7cc
https://git.kernel.org/stable/c/518df61b9b0a5b288dfa72c87246045329c18b8c
https://git.kernel.org/stable/c/9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16