Description
In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork. As for kthread case, it's better to clear the s[12] array as well.
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
7db91e57a0acde126a162ababfb1e0ab190130cb to < c4601d30f7d989b4f354df899ab85b5f7a750d30affected7db91e57a0acde126a162ababfb1e0ab190130cb to < c5c0b3167537793a7cf936fb240366eefd2fc7fbaffected7db91e57a0acde126a162ababfb1e0ab190130cb to < e56d18a976dda653194218df6d40d8122c775712affected7db91e57a0acde126a162ababfb1e0ab190130cb to < cc36c7fa5d9384602529ba3eea8c5daee7be4dbcaffected7db91e57a0acde126a162ababfb1e0ab190130cb to < 358a68f98304b40b201ba5afe94c20355aa3dc68affected7db91e57a0acde126a162ababfb1e0ab190130cb to < 6510c78490c490a6636e48b61eeaa6fb65981f4baffected
Linux Linux
Default version status: affected
4.15affected0 to < 4.15unaffected4.19.267 to ≤ 4.19.*unaffected5.4.225 to ≤ 5.4.*unaffected5.10.155 to ≤ 5.10.*unaffected5.15.79 to ≤ 5.15.*unaffected6.0.9 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 ↗
- https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb ↗
- https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712 ↗
- https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc ↗
- https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 ↗
- https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b ↗