CVE-2026-68313

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd0796d1ef63deb38147729664691ba3090930b26 < f9c669d9f4cac832fe31193cdbc24c6a9d99398baffected
LinuxLinuxd0796d1ef63deb38147729664691ba3090930b26 < 1ab78af2140189b735b8d3b889b0284128cb2013affected
LinuxLinuxd0796d1ef63deb38147729664691ba3090930b26 < e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2efaffected
LinuxLinuxd0796d1ef63deb38147729664691ba3090930b26 < b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48affected
LinuxLinuxd0796d1ef63deb38147729664691ba3090930b26 < 22f8aa35964e8f2ab026578f45befc9605fd1b28affected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc5 <= *unaffected

Weaknesses

References