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.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4193-1 | linux-6.1 security update |
Debian DSA |
DSA-5900-1 | linux security update |
EUVD |
EUVD-2025-9357 | 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. |
Ubuntu USN |
USN-7591-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7591-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7591-3 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7591-4 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-7591-5 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7591-6 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7592-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7593-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7597-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7597-2 | Linux kernel (Azure FIPS) vulnerabilities |
Ubuntu USN |
USN-7598-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7602-1 | Linux kernel (Xilinx ZynqMP) vulnerabilities |
Ubuntu USN |
USN-7605-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7605-2 | Linux kernel (Low Latency) vulnerabilities |
Ubuntu USN |
USN-7606-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-7628-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7655-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7764-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7764-2 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7765-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-7766-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7767-1 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7767-2 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7779-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7790-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7800-1 | Linux kernel (Raspberry Pi Real-time) vulnerabilities |
Ubuntu USN |
USN-7801-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7802-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7801-2 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-7809-1 | Linux kernel (Azure, N-Series) vulnerabilities |
Ubuntu USN |
USN-7801-3 | Linux kernel (Oracle) vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 03 Nov 2025 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 01 Oct 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 16 Jun 2025 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:10.0 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
Mon, 21 Apr 2025 02:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
threat_severity
|
threat_severity
|
Mon, 14 Apr 2025 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | CWE-190 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:* |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Thu, 10 Apr 2025 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 02 Apr 2025 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Tue, 01 Apr 2025 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | cifs: Fix integer overflow while processing acdirmax mount option | |
| References |
|
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-11-03T19:40:05.668Z
Reserved: 2024-12-29T08:45:45.795Z
Link: CVE-2025-21963
Updated: 2025-10-01T14:38:33.971Z
Status : Modified
Published: 2025-04-01T16:15:27.550
Modified: 2025-11-03T20:17:33.003
Link: CVE-2025-21963
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN