CVE-2025-37966
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL
When userspace does PR_SET_TAGGED_ADDR_CTRL, but Supm extension is not available, the kernel crashes:
Oops - illegal instruction [#1] [snip] epc : set_tagged_addr_ctrl+0x112/0x15a ra : set_tagged_addr_ctrl+0x74/0x15a epc : ffffffff80011ace ra : ffffffff80011a30 sp : ffffffc60039be10 [snip] status: 0000000200000120 badaddr: 0000000010a79073 cause: 0000000000000002 set_tagged_addr_ctrl+0x112/0x15a __riscv_sys_prctl+0x352/0x73c do_trap_ecall_u+0x17c/0x20c andle_exception+0x150/0x15c
Fix it by checking if Supm is available.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 09d6775f503b393d0457c7126aa43208e1724004 < 4b595a2f5656cd45d534ed2160c94f7662adefe5 | affected |
| Linux | Linux | 09d6775f503b393d0457c7126aa43208e1724004 < ae08d55807c099357c047dba17624b09414635dd | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.14.7 <= 6.14.* | unaffected |
| Linux | Linux | 6.15 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/4b595a2f5656cd45d534ed2160c94f7662adefe5
- https://git.kernel.org/stable/c/ae08d55807c099357c047dba17624b09414635dd
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