CVE-2025-21963

In the Linux kernel, the following vulnerability has been resolved:

cifs: Fix integer overflow while processing acdirmax mount option

User-provided mount parameter acdirmax of type u32 is intended to have
an upper limit, but before it is validated, the value is converted from
seconds to jiffies which can lead to an integer overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
VendorProductVersion
linuxlinux_kernel
5.12 ≤
𝑥
< 5.15.180
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.132
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.84
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.20
linuxlinux_kernel
6.13 ≤
𝑥
< 6.13.8
linuxlinux_kernel
6.14:rc1
linuxlinux_kernel
6.14:rc2
linuxlinux_kernel
6.14:rc3
linuxlinux_kernel
6.14:rc4
linuxlinux_kernel
6.14:rc5
linuxlinux_kernel
6.14:rc6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.237-1
fixed
bookworm
6.1.137-1
fixed
bookworm (security)
6.1.140-1
fixed
trixie
6.12.27-1
fixed
sid
6.12.30-1
fixed
linux-6.1
bullseye (security)
6.1.137-1~deb11u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
plucky
not-affected
oracular
pending
noble
needed
jammy
pending
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-allwinner-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws
plucky
not-affected
oracular
pending
noble
needed
jammy
pending
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws-5.0
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.3
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-fips
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
not-affected
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-hwe
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-azure
plucky
not-affected
oracular
pending
noble
needed
jammy
pending
focal
not-affected
bionic
ignored
xenial
not-affected
trusty
not-affected
linux-azure-4.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.3
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-azure-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-edge
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-azure-fde
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fips
plucky
dne
oracular
dne
noble
dne
jammy
pending
focal
not-affected
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-nvidia
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-bluefield
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-fips
plucky
dne
oracular
dne
noble
dne
jammy
pending
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-gcp
plucky
not-affected
oracular
pending
noble
needed
jammy
pending
focal
not-affected
bionic
ignored
xenial
not-affected
trusty
dne
linux-gcp-4.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.3
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gcp-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.11
plucky
dne
oracular
dne
noble
pending
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-fips
plucky
dne
oracular
dne
noble
dne
jammy
pending
focal
not-affected
bionic
not-affected
xenial
dne
trusty
dne
linux-gke
plucky
dne
oracular
dne
noble
needed
jammy
needed
focal
ignored
bionic
dne
xenial
ignored
trusty
dne
linux-gke-4.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gke-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gkeop
plucky
dne
oracular
dne
noble
needed
jammy
pending
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gkeop-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gkeop-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-hwe
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
not-affected
trusty
dne
linux-hwe-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-hwe-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.11
plucky
dne
oracular
dne
noble
pending
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-edge
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-ibm
plucky
dne
oracular
dne
noble
needed
jammy
needed
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-ibm-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-ibm-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-intel
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-intel-iot-realtime
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-iotg
plucky
dne
oracular
dne
noble
dne
jammy
pending
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-iotg-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-iot
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-kvm
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-lowlatency
plucky
dne
oracular
needed
noble
needed
jammy
pending
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
not-affected
linux-nvidia
plucky
dne
oracular
dne
noble
needed
jammy
pending
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-lowlatency
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-tegra
plucky
dne
oracular
dne
noble
needed
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-tegra-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-tegra-igx
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-oem-5.10
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.14
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.17
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.6
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.0
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.1
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.8
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle
plucky
not-affected
oracular
pending
noble
needed
jammy
needed
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-oracle-5.0
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.3
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-oracle-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-raspi-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi-realtime
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
linux-realtime
plucky
not-affected
oracular
pending
noble
needed
jammy
pending
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv
plucky
not-affected
oracular
pending
noble
needed
jammy
ignored
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-xilinx-zynqmp
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/0c26edf477e093cefc41637f5bccc102e1a77399
https://git.kernel.org/stable/c/2809a79bc64964ce02e0c5f2d6bd39b9d09bdb3c
https://git.kernel.org/stable/c/39d086bb3558da9640ef335f97453e01d32578a1
https://git.kernel.org/stable/c/5b29891f91dfb8758baf1e2217bef4b16b2b165b
https://git.kernel.org/stable/c/6124cbf73e3dea7591857dd63b8ccece28952afd
https://git.kernel.org/stable/c/9e438d0410a4002d24f420f2c28897ba2dc0af64