CVEvulnerability
CVE-2026-68185
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/1d0b99ef7fcb6cef1df273872059bf854814500e git.kernel.org
- https://git.kernel.org/stable/c/38b025fcdc45bdf5140a5726a1fbb2e694ea047b git.kernel.org
- https://git.kernel.org/stable/c/4b40e590efb350c54480d7e883f054d3609a94c6 git.kernel.org
- https://git.kernel.org/stable/c/881e9f3c4e117b100880b1c5de3a0da8e455a78f git.kernel.org
- https://git.kernel.org/stable/c/ea68d444a658783234a06f05414e41cf93a18fb2 git.kernel.org