CVE-2025-40322
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
fbdev: bitblit: bound-check glyph index in bit_putcs*
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | a10cede006f9614b465cf25609a8753efbfd45cc | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 0998a6cb232674408a03e8561dc15aa266b2f53b | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | db5c9a162d2f42bcc842b76b3d935dcc050a0eec | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | c12003bf91fdff381c55ef54fef3e961a5af2545 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 9ba1a7802ca9a2590cef95b253e6526f4364477f | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 901f44227072be60812fe8083e83e1533c04eed1 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | efaf89a75a29b2d179bf4fe63ca62852e93ad620 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 18c4ef4e765a798b47980555ed665d78b71aeadf | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.12 | Unavailable | None listed |
| 5.4.302 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.247 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.197 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.159 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.117 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.58 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.8 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |