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CVE-2025-40322

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

fbdev: bitblit: bound-check glyph index in bit_putcs*

bit_putcs_aligned()/unaligned() derived the glyph pointer from the
character value masked by 0xff/0x1ff, which may exceed the actual font's
glyph count and read past the end of the built-in font array.
Clamp the index to the actual glyph count before computing the address.

This fixes a global out-of-bounds read reported by syzbot.
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < a10cede006f9614b465cf25609a8753efbfd45cc
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 0998a6cb232674408a03e8561dc15aa266b2f53b
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < db5c9a162d2f42bcc842b76b3d935dcc050a0eec
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < c12003bf91fdff381c55ef54fef3e961a5af2545
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 9ba1a7802ca9a2590cef95b253e6526f4364477f
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 901f44227072be60812fe8083e83e1533c04eed1
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < efaf89a75a29b2d179bf4fe63ca62852e93ad620
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 18c4ef4e765a798b47980555ed665d78b71aeadf
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version <= 5.4.*
Version 5.4.302
Status unaffected
Version <= 5.10.*
Version 5.10.247
Status unaffected
Version <= 5.15.*
Version 5.15.197
Status unaffected
Version <= 6.1.*
Version 6.1.159
Status unaffected
Version <= 6.6.*
Version 6.6.117
Status unaffected
Version <= 6.12.*
Version 6.12.58
Status unaffected
Version <= 6.17.*
Version 6.17.8
Status unaffected
Version <= *
Version 6.18
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.051
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String