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.
Product status
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 0bf3dc3a2156f1c5ddaba4b85d09767874634114
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 41c18baee66134e6ef786eb075c1b6adb22432b0
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 59424dc0d0e044b2eb007686a4724ddd91d57db5
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 9b137f277cc3297044aabd950f589e505d30104c
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 674ff598148a28bae0b5372339de56f2abf0b1d1
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 7de3a75bbc8465d816336c74d50109e73501efab
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 57c278500fce3cd4e1c540700c0b05426a958393
cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada (git) before 4fba1713001195e59cfc001ff1f2837dab877efb
1731d90d8a558ecb20cdee0c2c001ae8e15c251d (git)
b0580eadc19ff3a617a7d07cfaf2a985153c114e (git)
4.9
Any version before 4.9
5.4.301 (semver)
5.10.246 (semver)
5.15.195 (semver)
6.1.156 (semver)
6.6.112 (semver)
6.12.53 (semver)
6.17.3 (semver)
6.18 (original_commit_for_fix)
References
git.kernel.org/...c/0bf3dc3a2156f1c5ddaba4b85d09767874634114
git.kernel.org/...c/41c18baee66134e6ef786eb075c1b6adb22432b0
git.kernel.org/...c/59424dc0d0e044b2eb007686a4724ddd91d57db5
git.kernel.org/...c/9b137f277cc3297044aabd950f589e505d30104c
git.kernel.org/...c/674ff598148a28bae0b5372339de56f2abf0b1d1
git.kernel.org/...c/7de3a75bbc8465d816336c74d50109e73501efab
git.kernel.org/...c/57c278500fce3cd4e1c540700c0b05426a958393
git.kernel.org/...c/4fba1713001195e59cfc001ff1f2837dab877efb
