Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: LoongArch: Enable exception fixup for specific ADE subcode This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions. When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery. do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution. Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c before 73ede654d9daa2ee41bdd17bc62946fc5a0258cb; affected dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c before c49a28068363f3dca439aa5fe4d3b1f8159809fe; affected dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c before c2ed4f71e9288f21d5c53ff790270758e60fa5f9; affected dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c before 9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0 |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 6.6.124 through 6.6.*; unaffected 6.12.70 through 6.12.*; unaffected 6.18.10 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.