Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: return errors from Oaktrail HDMI I2C reads xfer_read() waits for the HDMI I2C transaction to reach I2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from wait_for_completion_interruptible_timeout(). If the interrupt never advances the transaction state, the loop can wait forever. Return -ETIMEDOUT when the completion wait expires, propagate interrupted waits, and make the I2C master_xfer callback return the first transfer error instead of reporting a successful message count.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71
• git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2
• git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033
• git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20
• git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93
• git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69
• git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c