CVE-2023-53492 — Release of Invalid Pointer or Reference in Linux

CWE-763 — Release of Invalid Pointer or Reference5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 97.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not ignore genmask when looking up chain by id When adding a rule to a chain referring to its ID, if that chain had been deleted on the same batch, the rule might end up referring to a deleted chain. This will lead to a WARNING like following: [ 33.098431] ------------[ cut here ]------------ [ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x26…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel5.9 — 5.10.188+4
▶Debianlinux/linux_kernel< 5.10.191-1+3
▶CVEListV5linux/linux837830a4b439bfeb86c70b0115c280377c84714b — 4ae2e501331aaa506eaf760339bb2f43e5769395+5
▶debiandebian/linux< linux 6.1.52-1 (bookworm)

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-rj62-f3v9-qqwj: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not ignore genmask when looking up chain by id When add↗2025-10-01
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OSV
CVE-2023-53492: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not ignore genmask when looking up chain by id When addin↗2025-10-01
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📋Vendor Advisories

2
Red Hat
kernel: netfilter: nf_tables: do not ignore genmask when looking up chain by id↗2025-10-01
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Debian
CVE-2023-53492: linux - In the Linux kernel, the following vulnerability has been resolved: netfilter: ...↗2023
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