What’s Vulnerable › Vulnerabilities

CVE-2026-68185: LoongArch: Move jump_label_init() before parse_early_param()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Move jump_label_init() before parse_early_param() When enabling both CONFIG_MEM_ALLOC_PROFILING=y and CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT=y, then diabling memory profiling by adding the boot parameter 'sysctl.vm.mem_profiling=0' will cause the kernel failed to boot. After analysis, this is because jump_label_init() must be called before parse_early_param(), the early param handlers may modify static keys by static_branch_enable/disable(). Fix this by moving jump_label_init() to before parse_early_param(). The solution is similar to other architectures.

Affected products

• Linux: 5.19 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/02f993165fdbba98dd6a9ec230a3deda891bb9f2
• https://git.kernel.org/stable/c/1d0b99ef7fcb6cef1df273872059bf854814500e
• https://git.kernel.org/stable/c/38b025fcdc45bdf5140a5726a1fbb2e694ea047b
• https://git.kernel.org/stable/c/4b40e590efb350c54480d7e883f054d3609a94c6
• https://git.kernel.org/stable/c/881e9f3c4e117b100880b1c5de3a0da8e455a78f
• https://git.kernel.org/stable/c/ea68d444a658783234a06f05414e41cf93a18fb2

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