CVE-2025-68799
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)
caif: fix integer underflow in cffrml_receive()
In the Linux kernel, the following vulnerability has been resolved: caif: fix integer underflow in cffrml_receive() The cffrml_receive() function extracts a length field from the packet header and, when FCS is disabled, subtracts 2 from this length without validating that len >= 2. If an attacker sends a malicious packet with a length field of 0 or 1 to an interface with FCS disabled, the subtraction causes an integer underflow. This can lead to memory exhaustion and kernel instability, potential information disclosure if padding contains uninitialized kernel memory. Fix this by validating that len >= 2 before performing the subtraction.
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) |
|---|---|---|---|---|---|
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | f407f1c9f45bbf5c99fd80b3f3f4a94fdbe35691 | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | c54091eec6fed19e94182aa05dd6846600a642f7 | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | 785c7be6361630070790f6235b696da156ac71b3 | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | f818cd472565f8b0c2c409b040e0121c5cf8592c | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | 4ec29714aa4e0601ea29d2f02b461fc0ac92c2c3 | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | 21fdcc00656a60af3c7aae2dea8dd96abd35519c | Unavailable | None listed |
| b482cd2053e3b90a7b33a78c63cdb6badf2ec383 | affected | git | 8a11ff0948b5ad09b71896b7ccc850625f9878d1 | 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) |
|---|---|---|---|---|---|
| 2.6.35 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.35 | Unavailable | None listed |
| 5.10.248 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.198 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.160 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.120 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.64 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.3 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |