{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93068","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T15:57:05.660Z","datePublished":"2026-09-17T16:10:52.971Z","dateUpdated":"2026-09-17T16:10:52.971Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:10:52.971Z"},"descriptions":[{"lang":"en","value":"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 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"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c","drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h"],"versions":[{"version":"5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3","lessThan":"8ee385305e8902fa6fbfd66b5a112238292567b6","status":"affected","versionType":"git"},{"version":"5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3","lessThan":"6970ec944567f109ac4240f9aea58158ee8a18cd","status":"affected","versionType":"git"},{"version":"5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3","lessThan":"e4ae30a12aa95942814957d8bc1ce7366a7107d7","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c","drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8ee385305e8902fa6fbfd66b5a112238292567b6"},{"url":"https://git.kernel.org/stable/c/6970ec944567f109ac4240f9aea58158ee8a18cd"},{"url":"https://git.kernel.org/stable/c/e4ae30a12aa95942814957d8bc1ce7366a7107d7"}],"title":"drm/amd/display: Fix DM I2C teardown race","x_generator":{"engine":"bippy-1.2.0"}}}}