Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 0bf3dc3a2156f1c5ddaba4b85d09767874634114; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 41c18baee66134e6ef786eb075c1b6adb22432b0; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 59424dc0d0e044b2eb007686a4724ddd91d57db5; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 9b137f277cc3297044aabd950f589e505d30104c; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 674ff598148a28bae0b5372339de56f2abf0b1d1; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 7de3a75bbc8465d816336c74d50109e73501efab; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 57c278500fce3cd4e1c540700c0b05426a958393; affected cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada before 4fba1713001195e59cfc001ff1f2837dab877efb; affected 1731d90d8a558ecb20cdee0c2c001ae8e15c251d; affected b0580eadc19ff3a617a7d07cfaf2a985153c114e; affected 4.4.34 before 4.5; affected 4.8.10 before 4.9 |
| Linux / Linux | affected 4.9; unaffected 0 before 4.9; unaffected 5.4.301 through 5.4.*; unaffected 5.10.246 through 5.10.*; unaffected 5.15.195 through 5.15.*; unaffected 6.1.156 through 6.1.*; unaffected 6.6.112 through 6.6.*; unaffected 6.12.53 through 6.12.*; unaffected 6.17.3 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.
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