CVE-2026-68334
CVE-2026-68334: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
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Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.9
Medium [CVE-2026-68334] Linux kernel: `rxrpc` race condition causes Denial of Service
CVE-2026-68334Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix io_thread race in rxrpc_wake_up_io_thread() rxrpc_wake_up_io_thread() checks local->io_thread before waking it, but then reloads the pointer for wake_up_process(). local->io_thread is cleared with WRITE_ONCE() when the I/O thread exits, so the second load can see NULL even if the first load did not. Take a READ_ONCE() snapshot and use it for both the NULL check and the wake_up_process() call, as rxrpc_encap_rcv() already does. A race condition in the `rxrpc_wake_up_io_thread()` function could lead to a null pointer dereference. This occurs when the `io_thread` pointer is checked and then reloaded, and if the I/O thread exits between these operations, the second load can result in a null value. This…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Update to a kernel version containing the fix (6.18.42+ or 7.1.6+).
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