CVE-2026-68313
Low risk· EPSS 10%Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
In the Linux kernel TIPC subsystem, the __tipc_nl_compat_dumpit function can enter an infinite loop when the dumpit callback returns a negative errno. The while(len) loop never terminates, causing genl_mutex to never be released and other tasks waiting on it to starve in D state.
Risk Assessment
The infinite loop can cause system hang or unresponsiveness, leading to service disruption and potential DoS attack.
Recommendation
Apply the Linux kernel patch that checks the dumpit return value, propagates it, and jumps to err_out on error.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: tipc: fix infinite loop in __tipc_nl_compat_dumpit cmd->dumpit callback can return a negative errno, causing an infinite loop due to the while(len) condition. As the loop never terminates, genl_mutex is never released, and other tasks waiting on it starve in D state. Check dumpit's return value, propagate it and jump to err_out on error.