CVE-2026-80678
CVE CVE-2026-80678EUVD EUVD-2026-67554Published 2026-08-28T06:52:47.000ZLast changed 2026-08-29T06:22:05.000ZCVSS 8.4
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: i2c: imx: Fix slave registration race and error handling In i2c_imx_reg_slave(), the slave pointer was assigned before pm_runtime_resume_and_get(). If pm_runtime_resume_and_get() failed, the error path returned without clearing i2c_imx->slave, leaving it non-NULL and causing all subsequent registration attempts to fail with -EBUSY. Additionally, because this driver uses a shared IRQ, the interrupt handler i2c_imx_isr() can execute concurrently and, after acquiring slave_lock, dereference i2c_imx->slave. The previous fix attempt added a lockless i2c_imx->slave = NULL on the error path, but that could race with the ISR under the lock and still cause a NULL pointer dereference. Fix both issues by deferring the assignment of i2c_imx->slave and i2c_imx->last_slave_event to after a successful resume, and by performing the assignment inside the slave_lock critical section. This guarantees that the slave pointer is never left stale on the error path and is always valid when observed by the interrupt handler.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2; patch: 5.15.217; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <b9f6f4883b9ac86654e75899d0dbf8a7a96ad5d8; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d6748f6802f3eebafaa16a5e5dcfbfb9b3bc173f; patch: 6.6.151; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <cfdf6e13518589f911b7eace6ccb788e4ed87397; patch: 6.18.44; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d64ec362c369bbc33833f7936d5f3a706b0d5c45; 5.11; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <614ca6594e301ff682999797c2216e9685558a2b; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <12a4f0950a158d98552cbaeacc35edccd8d975fa; patch: 7.1.8; f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <754bc62f72fd64b202462367134ac8ce95b005de; patch: 6.12.103; patch: 6.1.183; patch: 0
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
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- Linux — Linux
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