CVE-2025-38671

Summary

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

i2c: qup: jump out of the loop in case of timeout

Original logic only sets the return value but doesn't jump out of the loop if the bus is kept active by a client. This is not expected. A malicious or buggy i2c client can hang the kernel in this case and should be avoided. This is observed during a long time test with a PCA953x GPIO extender.

Fix it by changing the logic to not only sets the return value, but also jumps out of the loop and return to the caller with -ETIMEDOUT.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < cbec4406998185e0311ae97dfacc649f9cd79b0baffected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < acfa2948be630ad857535cb36153697f3cbf9ca9affected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < d05ec13aa3eb868a60dc961b489053a643863ddcaffected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < c523bfba46c4b4d7676fb050909533a766698ecdaffected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < 0d33913fce67a93c1eb83396c3c9d6b411dcab33affected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < 42c4471b30fa203249f476dd42321cd7efb7f6a8affected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < 89459f168b78e5c801dc8b7ad037b62898bc4f57affected
LinuxLinuxfbfab1ab065879370541caf0e514987368eb41b2 < a7982a14b3012527a9583d12525cd0dc9f8d8934affected
LinuxLinux4.17affected
LinuxLinux0 < 4.17unaffected
LinuxLinux5.4.297 <= 5.4.*unaffected
LinuxLinux5.10.241 <= 5.10.*unaffected
LinuxLinux5.15.190 <= 5.15.*unaffected
LinuxLinux6.1.148 <= 6.1.*unaffected
LinuxLinux6.6.101 <= 6.6.*unaffected
LinuxLinux6.12.41 <= 6.12.*unaffected
LinuxLinux6.15.9 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References