Not rated
CVE-2025-39823 KVM: x86: use array_index_nospec with indices that come from guest
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: use array_index_nospec with indices that come from guest min and dest_id are guest-controlled indices. Using array_index_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.17 | earliest → < 6.17 | 6.17 |
| Linux 6.16 | earliest → < 6.16.5 | 6.16.5 |
| Linux 6.12 | earliest → < 6.12.45 | 6.12.45 |
| Linux 6.6 | earliest → < 6.6.104 | 6.6.104 |
| Linux 6.1 | earliest → < 6.1.150 | 6.1.150 |
| Linux 5.15 | earliest → < 5.15.191 | 5.15.191 |
| Linux 5.10 | earliest → < 5.10.242 | 5.10.242 |
| Linux 5.4 | earliest → < 5.4.298 | 5.4.298 |
| Linux | 4.19 | No fix stated |
Show the other branch Hide the other branch
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC CN 4100 5.0 | earliest → < 5.0 | 5.0 |
Other CVEs of Linux
The 18300 CVEs of Linux →
CVE-2026-99284
net: skbuff: propagate shared-frag marker in skb_zerocopy()
Not rated
CVE-2026-99283
netfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets
Not rated
CVE-2026-99282
net/sched: sch_teql: fix use-after-free on lower qdisc drop
Not rated
CVE-2026-99281
tun: Require CAP_NET_ADMIN to attach to an ownerless device
Not rated