Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
fbfab1ab065879370541caf0e514987368eb41b2 to < cbec4406998185e0311ae97dfacc649f9cd79b0baffectedfbfab1ab065879370541caf0e514987368eb41b2 to < acfa2948be630ad857535cb36153697f3cbf9ca9affectedfbfab1ab065879370541caf0e514987368eb41b2 to < d05ec13aa3eb868a60dc961b489053a643863ddcaffectedfbfab1ab065879370541caf0e514987368eb41b2 to < c523bfba46c4b4d7676fb050909533a766698ecdaffectedfbfab1ab065879370541caf0e514987368eb41b2 to < 0d33913fce67a93c1eb83396c3c9d6b411dcab33affectedfbfab1ab065879370541caf0e514987368eb41b2 to < 42c4471b30fa203249f476dd42321cd7efb7f6a8affectedfbfab1ab065879370541caf0e514987368eb41b2 to < 89459f168b78e5c801dc8b7ad037b62898bc4f57affectedfbfab1ab065879370541caf0e514987368eb41b2 to < a7982a14b3012527a9583d12525cd0dc9f8d8934affected
Linux Linux
Default version status: affected
4.17affected0 to < 4.17unaffected5.4.297 to ≤ 5.4.*unaffected5.10.241 to ≤ 5.10.*unaffected5.15.190 to ≤ 5.15.*unaffected6.1.148 to ≤ 6.1.*unaffected6.6.101 to ≤ 6.6.*unaffected6.12.41 to ≤ 6.12.*unaffected6.15.9 to ≤ 6.15.*unaffected6.16 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/cbec4406998185e0311ae97dfacc649f9cd79b0b ↗
- https://git.kernel.org/stable/c/acfa2948be630ad857535cb36153697f3cbf9ca9 ↗
- https://git.kernel.org/stable/c/d05ec13aa3eb868a60dc961b489053a643863ddc ↗
- https://git.kernel.org/stable/c/c523bfba46c4b4d7676fb050909533a766698ecd ↗
- https://git.kernel.org/stable/c/0d33913fce67a93c1eb83396c3c9d6b411dcab33 ↗
- https://git.kernel.org/stable/c/42c4471b30fa203249f476dd42321cd7efb7f6a8 ↗
- https://git.kernel.org/stable/c/89459f168b78e5c801dc8b7ad037b62898bc4f57 ↗
- https://git.kernel.org/stable/c/a7982a14b3012527a9583d12525cd0dc9f8d8934 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗