CVE-2026-90238

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path isp4sd_pwron_and_init() holds ops_mutex via guard(mutex) and, on any init failure, jumps to err_deinit and calls isp4sd_pwroff_and_deinit(). That helper takes the same ops_mutex, re-acquiring a non-recursive mutex already held by the current thread, so any init failure deadlocks. Unwind the error path in stages instead, releasing only what each failure point acquired. This also avoids the issues that an unconditional teardown would hit at the earlier failures, such as a runtime-PM underflow from pm_runtime_resume_and_get() and MMIO access while the device is unpowered.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/74669cc3483e9729ca26b4e06a096ccdd607db64
https://git.kernel.org/stable/c/ef46d80a7015269a98c9505b5912a83798799199

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-90238

Mitre link : CVE-2026-90238

CVE.ORG link : CVE-2026-90238

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-90238", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3", "lessThan": "74669cc3483e9729ca26b4e06a096ccdd607db64", "versionType": "git"}, {"status": "affected", "version": "4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3", "lessThan": "ef46d80a7015269a98c9505b5912a83798799199", "versionType": "git"}], "programFiles": ["drivers/media/platform/amd/isp4/isp4_subdev.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7.2"}, {"status": "unaffected", "version": "0", "lessThan": "7.2", "versionType": "semver"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/media/platform/amd/isp4/isp4_subdev.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:17:19.753", "references": [{"url": "https://git.kernel.org/stable/c/74669cc3483e9729ca26b4e06a096ccdd607db64", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ef46d80a7015269a98c9505b5912a83798799199", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path\n\nisp4sd_pwron_and_init() holds ops_mutex via guard(mutex) and, on any\ninit failure, jumps to err_deinit and calls isp4sd_pwroff_and_deinit().\nThat helper takes the same ops_mutex, re-acquiring a non-recursive mutex\nalready held by the current thread, so any init failure deadlocks.\n\nUnwind the error path in stages instead, releasing only what each\nfailure point acquired. This also avoids the issues that an\nunconditional teardown would hit at the earlier failures, such as a\nruntime-PM underflow from pm_runtime_resume_and_get() and MMIO access\nwhile the device is unpowered."}], "lastModified": "2026-09-17T17:17:19.753", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}