CVE-2022-49749

linux: In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock mul...

CVE-2022-49749 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49749, released March 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0019
9th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 6.1.11-1 DEBIAN-CVE-2022-49749 Mar 27, 2025
linux · Debian 13.5 (trixie) 6.1.11-1 DEBIAN-CVE-2022-49749 Mar 27, 2025
linux · Debian 14 6.1.11-1 DEBIAN-CVE-2022-49749 Mar 27, 2025

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