CVE-2025-37849 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV5.5OSV3.2
EPSS
0.1%
top 82.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 9
Latest updateApr 17
Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: Tear down vGIC on failed vCPU creation
If kvm_arch_vcpu_create() fails to share the vCPU page with the
hypervisor, we propagate the error back to the ioctl but leave the
vGIC vCPU data initialised. Note only does this leak the corresponding
memory when the vCPU is destroyed but it can also lead to use-after-free
if the redistributor device handling tries to walk into the vCPU.
Add the missing cleanup to kvm_arch_v…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages12 packages
Also affects: Debian Linux 11.0