{"id":"CVE-2026-93068","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix DM I2C teardown race\n\nDM I2C adapters can remain visible to userspace while DM teardown is\nalready in progress","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix DM I2C teardown race\n\nDM I2C adapters can remain visible to userspace while DM teardown is\nalready in progress. A concurrent i2c-dev transfer may t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 < 8ee385305e8902fa6fbfd66b5a112238292567b6","Linux >= 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 < 6970ec944567f109ac4240f9aea58158ee8a18cd","Linux >= 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 < e4ae30a12aa95942814957d8bc1ce7366a7107d7","Linux 6.18"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:18:00.647","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93068","references":[{"url":"https://git.kernel.org/stable/c/6970ec944567f109ac4240f9aea58158ee8a18cd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8ee385305e8902fa6fbfd66b5a112238292567b6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e4ae30a12aa95942814957d8bc1ce7366a7107d7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.765Z","epss":0.00198,"epssPercentile":0.09849,"slug":"CVE-2026-93068","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix DM I2C teardown race\n\nDM I2C adapters can remain visible to userspace while DM teardown is\nalready in progress. A concurrent i2c-dev transfer may then enter\namdgpu_dm_i2c_xfer() after the backing DM state has been torn down,\nleading to a NULL pointer dereference.\n\nCreate a devres group around the DM I2C adapter lifetime and release it\nat the start of dm_hw_fini(), before HPD, IRQ, and DM state are torn\ndown. This removes the I2C adapters first and waits for in-flight users\nto drain before the structures used by amdgpu_dm_i2c_xfer() disappear.\n\nThis fixes a teardown ordering race seen during device removal:\n\nBUG: kernel NULL pointer dereference\nRIP: amdgpu_dm_i2c_xfer+0x122/0x1c0 [amdgpu]\nCall Trace:\n__i2c_transfer\ni2c_transfer\ni2cdev_ioctl_rdwr\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}