CVE-2023-53445 — Improper Control of a Resource Through its Lifetime in Linux

CWE-664 — Improper Control of a Resource Through its Lifetime5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix a refcount bug in qrtr_recvmsg() Syzbot reported a bug as following: refcount_t: addition on 0; use-after-free. ... RIP: 0010:refcount_warn_saturate+0x17c/0x1f0 lib/refcount.c:25 ... Call Trace: __refcount_add include/linux/refcount.h:199 [inline] __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] kref_get include/linux/kref.h:45 [inline] qrtr_node_acquire n…

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_kernel5.6 — 5.10.178+4
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linux0a7e0d0ef05440db03c3199e84d228db943b237f — 98a9cd82c541ef6cbdb829cd6c05cbbb471e373c+5
▶debiandebian/linux< linux 6.1.25-1 (bookworm)

Patches

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

🔴Vulnerability Details

2
OSV
CVE-2023-53445: In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix a refcount bug in qrtr_recvmsg() Syzbot reported a bug as following↗2025-09-18
▶
GHSA
GHSA-3w47-qc84-prwf: In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix a refcount bug in qrtr_recvmsg() Syzbot reported a bug as followi↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: net: qrtr: Fix a refcount bug in qrtr_recvmsg()↗2025-09-18
▶
Debian
CVE-2023-53445: linux - In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ...↗2023
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CVE-2023-53445 — Linux vulnerability | cvebase