In the Linux kernel, the following vulnerability has been resolved:
tracing: fprobe events: Fix possible UAF on modules
Commit ac91052f0ae5 ("tracing: tprobe-events: Fix leakage of module refcount") moved try_module_get() from __find_tracepoint_module_cb() to find_tracepoint() caller, but that introduced a possible UAF because the module can be unloaded before try_module_get(). In this case, the module object should be freed too. Thus, try_module_get() does not only fail but may access to the freed object.
To avoid that, try_module_get() in __find_tracepoint_module_cb() again.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-gcpUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-genericUpgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-generic-64kUpgrade linux-image-realtimeUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-aws-64kUpgrade linux-image-azure-fdeUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-awsUpgrade linux-image-gcp-64kUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-6.14.0-1007-awsUpgrade linux-image-6.14.0-1007-raspi | Jun 26, 2025 | May 9, 2025 |
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