CVE-2022-49749
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
i2c: designware: use casting of u64 in clock multiplication to avoid overflow
In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock multiplication to avoid overflow In functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow by depending on the values of the given parameters including the ic_clk. For example in our use case where ic_clk is larger than one million, multiplication of ic_clk * 4700 will result in 32 bit overflow. Add cast of u64 to the calculation to avoid multiplication overflow, and use the corresponding define for divide.
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) |
|---|---|---|---|---|---|
| 2373f6b9744d5373b886f3ce1a985193cca0a356 | affected | git | ed173f77fd28a3e4fffc13b3f28687b9eba61157 | Unavailable | None listed |
| 2373f6b9744d5373b886f3ce1a985193cca0a356 | affected | git | 2f29d780bd691d20e89e5b35d5e6568607115e94 | Unavailable | None listed |
| 2373f6b9744d5373b886f3ce1a985193cca0a356 | affected | git | 9f36aae9e80e79b7a6d62227eaa96935166be9fe | Unavailable | None listed |
| 2373f6b9744d5373b886f3ce1a985193cca0a356 | affected | git | c8c37bc514514999e62a17e95160ed9ebf75ca8d | 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) |
|---|---|---|---|---|---|
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.2 | Unavailable | None listed |
| 5.10.166 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.91 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.9 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |