CVE-2023-53344 — Use of Uninitialized Resource in Linux

CWE-908 — Use of Uninitialized ResourceCWE-390 — Detection of Error Condition Without Action6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.77%
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: can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write Syzkaller reported the following issue: BUG: KMSAN: uninit-value in aio_rw_done fs/aio.c:1520 [inline] BUG: KMSAN: uninit-value in aio_write+0x899/0x950 fs/aio.c:1600 aio_rw_done fs/aio.c:1520 [inline] aio_write+0x899/0x950 fs/aio.c:1600 io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019 __do_sys_io_submit fs/aio.c:2078 [inline] __se_sys_io_submit+0x293/0x770 fs/aio.c:2048 …

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_kernel4.8 — 4.14.312+7
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linux6f3b911d5f29b98752e5da86a295210c0c4f4e14 — 3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be+8
▶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-2023-53344: In the Linux kernel, the following vulnerability has been resolved: can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write Syzkaller reported t↗2025-09-17
▶
GHSA
GHSA-7qp3-gx4r-g85j: In the Linux kernel, the following vulnerability has been resolved: can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write Syzkaller reported↗2025-09-17
▶

📋Vendor Advisories

2
Red Hat
kernel: Linux Kernel: Denial of Service in CAN BCM due to uninitialized memory read↗2025-09-17
▶
Debian
CVE-2023-53344: linux - In the Linux kernel, the following vulnerability has been resolved: can: bcm: b...↗2023
▶

💬Community

1
Bugzilla
CVE-2023-53344 kernel: Linux Kernel: Denial of Service in CAN BCM due to uninitialized memory read↗2025-09-17
▶
CVE-2023-53344 — Use of Uninitialized Resource in Linux | cvebase