CVE-2025-21725 — Divide By Zero in Linux

CWE-369 — Divide By Zero29 documents6 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV7.1OSV5.9
EPSS
0.0%
top 93.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
LinuxLinux KernelDebian Linux+1 more
Timeline
PublishedFeb 27
Latest updateSep 3

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to unset link speed It isn't guaranteed that NETWORK_INTERFACE_INFO::LinkSpeed will always be set by the server, so the client must handle any values and then prevent oopses like below from happening: Oops: divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 1323 Comm: cat Not tainted 6.13.0-rc7 #2 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-3.fc41 04/01/2014 RIP: 0…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages6 packages

▶NVDlinux/linux_kernel6.1.65 — 6.1.129+3
▶Debianlinux/linux_kernel< 6.1.129-1+2
▶Ubuntulinux/linux_kernel< 6.8.0-64.67
▶CVEListV5linux/linux548893404c44fc01a59f17727876e02553146fe6 — 208e102a2fca44e40a6c3f7b9e2609cfd17a15aa+5
▶debiandebian/linux< linux 6.1.129-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

14
OSV
linux-azure, linux-azure-6.8, linux-azure-nvidia vulnerabilities↗2025-09-03
▶
OSV
linux-raspi vulnerabilities↗2025-07-24
▶
OSV
linux-raspi-realtime vulnerabilities↗2025-07-24
▶
OSV
linux-gcp, linux-gcp-6.8 vulnerabilities↗2025-07-22
▶
OSV
linux-aws-6.8, linux-gke, linux-gkeop, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oracle, linux-oracle-6.8 vulnerabilities↗2025-07-22
▶

📋Vendor Advisories

14
Ubuntu
Linux kernel (Azure) vulnerabilities↗2025-09-03
▶
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities↗2025-07-24
▶
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities↗2025-07-24
▶
Ubuntu
Linux kernel (GCP) vulnerabilities↗2025-07-22
▶
Ubuntu
Linux kernel vulnerabilities↗2025-07-22
▶