CVE-2025-21901 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 84.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedApr 1

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on rdev validity There is a possibility that ulp_irq_stop and ulp_irq_start callbacks will be called when the device is in detached state. This can cause a crash due to NULL pointer dereference as the rdev is already freed.

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 Packages4 packages

▶NVDlinux/linux_kernel6.12 — 6.12.18+2
▶Debianlinux/linux_kernel< 6.12.19-1+1
▶CVEListV5linux/linuxcc5b9b48d44756a87170f3901c6c2fd99e6b89b2 — aed1bc673907e3df372b317c10ff2f3582f8bf1a+3
▶debiandebian/linux< linux 6.12.19-1 (forky)

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-j57r-qmgx-xp34: In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on rdev validity There is a possibility that ulp↗2025-04-01
▶
OSV
CVE-2025-21901: In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on rdev validity There is a possibility that ulp_i↗2025-04-01
▶

📋Vendor Advisories

2
Red Hat
kernel: RDMA/bnxt_re: Add sanity checks on rdev validity↗2025-04-01
▶
Debian
CVE-2025-21901: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_r...↗2025
▶
CVE-2025-21901 — NULL Pointer Dereference in Linux | cvebase