CVE-2025-68181
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Remove calls to drm_put_dev() Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be free'd should be done by devres. However, drm_put_dev() is still in the probe error and device remove paths. When the driver fails to probe warnings like the following are shown because devres is trying to drm_put_dev() after the driver already did it. [ 5.642230] radeon 0000:01:05.0: probe with driver radeon failed with error -22 [ 5.649605] ------------[ cut here ]------------ [ 5.649607] refcount_t: underflow; use-after-free. [ 5.649620] WARNING: CPU: 0 PID: 357 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110 (cherry picked from commit 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)
Affected versions
Linux kernel versions
6.12
and later are affected. Fixed in
6.12.58,
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68181 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/2fa41445d8c98f2a65503c373796466496edc0e7
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PatchKernel patch commithttps://git.kernel.org/stable/c/745bae76acdd71709773c129a69deca01036250b
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PatchKernel patch commithttps://git.kernel.org/stable/c/ec18f6b2c743cc471b2539ddb5caed20a012e640
Frequently asked questions
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What is CVE-2025-68181?
CVE-2025-68181 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.12 onward and has been patched in 6.12.58, 6.17.8 and 6.18. CVE-2025-68181 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-68181?
Yes — CVE-2025-68181 has been patched. Fixed versions include 6.12.58, 6.17.8 and 6.18. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68181 actively exploited?
No — CVE-2025-68181 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.