CVE-2023-53335 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 17

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() If get_ep_from_tid() fails to lookup non-NULL value for ep, ep is dereferenced later regardless of whether it is empty. This patch adds a simple sanity check to fix the issue. Found by Linux Verification Center (linuxtesting.org) with SVACE.

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_kernel4.7 — 5.15.99+2
▶Debianlinux/linux_kernel< 6.1.20-1+2
▶CVEListV5linux/linux944661dd97f4f257cd914fffec7eb80832ff9141 — 9dca64042d855a24b0bd81ce242e5dc7e939f6eb+4
▶debiandebian/linux< linux 6.1.20-1 (bookworm)

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-9pwf-89r7-36h6: In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() If get_ep_from_tid(↗2025-09-17
▶
OSV
CVE-2023-53335: In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() If get_ep_from_tid()↗2025-09-17
▶

📋Vendor Advisories

2
Red Hat
kernel: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()↗2025-09-17
▶
Debian
CVE-2023-53335: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4:...↗2023
▶
CVE-2023-53335 — NULL Pointer Dereference in Linux | cvebase