Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 0bf3dc3a2156f1c5ddaba4b85d09767874634114affectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 41c18baee66134e6ef786eb075c1b6adb22432b0affectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 59424dc0d0e044b2eb007686a4724ddd91d57db5affectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 9b137f277cc3297044aabd950f589e505d30104caffectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 674ff598148a28bae0b5372339de56f2abf0b1d1affectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 7de3a75bbc8465d816336c74d50109e73501efabaffectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 57c278500fce3cd4e1c540700c0b05426a958393affectedcb736fdbb208eb3420f1a2eb2bfc024a6e9dcada to < 4fba1713001195e59cfc001ff1f2837dab877efbaffected1731d90d8a558ecb20cdee0c2c001ae8e15c251daffectedb0580eadc19ff3a617a7d07cfaf2a985153c114eaffected4.4.34 to < 4.5affected4.8.10 to < 4.9affected
Linux Linux
Default version status: affected
4.9affected0 to < 4.9unaffected5.4.301 to ≤ 5.4.*unaffected5.10.246 to ≤ 5.10.*unaffected5.15.195 to ≤ 5.15.*unaffected6.1.156 to ≤ 6.1.*unaffected6.6.112 to ≤ 6.6.*unaffected6.12.53 to ≤ 6.12.*unaffected6.17.3 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected
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 ↗