Tracker / CVE-2021-47548
CVE-2021-47548
Critical 9.8
In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM) return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · … → 4.9.292 |
| linux | linux_kernel · 4.10 → 4.14.257 |
| linux | linux_kernel · 4.15 → 4.19.220 |
| linux | linux_kernel · 4.20 → 5.4.164 |
| linux | linux_kernel · 5.11 → 5.15.7 |
| linux | linux_kernel · 5.5 → 5.10.84 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.