CVE-2025-40126
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC
The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations. This will fix the return value of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 0bf3dc3a2156f1c5ddaba4b85d09767874634114 | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 41c18baee66134e6ef786eb075c1b6adb22432b0 | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 59424dc0d0e044b2eb007686a4724ddd91d57db5 | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 9b137f277cc3297044aabd950f589e505d30104c | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 674ff598148a28bae0b5372339de56f2abf0b1d1 | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 7de3a75bbc8465d816336c74d50109e73501efab | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 57c278500fce3cd4e1c540700c0b05426a958393 | affected |
| Linux | Linux | cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada < 4fba1713001195e59cfc001ff1f2837dab877efb | affected |
| Linux | Linux | 1731d90d8a558ecb20cdee0c2c001ae8e15c251d | affected |
| Linux | Linux | b0580eadc19ff3a617a7d07cfaf2a985153c114e | affected |
| Linux | Linux | 4.4.34 < 4.5 | affected |
| Linux | Linux | 4.8.10 < 4.9 | affected |
| Linux | Linux | 4.9 | affected |
| Linux | Linux | 0 < 4.9 | unaffected |
| Linux | Linux | 5.4.301 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.246 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.195 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.156 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.112 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.53 <= 6.12.* | unaffected |
| Linux | Linux | 6.17.3 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0bf3dc3a2156f1c5ddaba4b85d09767874634114
- https://git.kernel.org/stable/c/41c18baee66134e6ef786eb075c1b6adb22432b0
- https://git.kernel.org/stable/c/59424dc0d0e044b2eb007686a4724ddd91d57db5
- https://git.kernel.org/stable/c/9b137f277cc3297044aabd950f589e505d30104c
- https://git.kernel.org/stable/c/674ff598148a28bae0b5372339de56f2abf0b1d1
- https://git.kernel.org/stable/c/7de3a75bbc8465d816336c74d50109e73501efab
- https://git.kernel.org/stable/c/57c278500fce3cd4e1c540700c0b05426a958393
- https://git.kernel.org/stable/c/4fba1713001195e59cfc001ff1f2837dab877efb
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