CVE-2026-23037

linux: In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: allow partial RX URB allocation...

CVE-2026-23037 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-23037, released January 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0024
15th percentile

In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: allow partial RX URB allocation to succeed When es58x_alloc_rx_urbs() fails to allocate the requested number of URBs but succeeds in allocating some, it returns an error code. This causes es58x_open() to return early, skipping the cleanup label 'free_urbs', which leads to the anchored URBs being leaked. As pointed out by maintainer Vincent Mailhol, the driver is designed to handle partial URB allocation gracefully. Therefore, partial allocation should not be treated as a fatal error. Modify es58x_alloc_rx_urbs() to return 0 if at least one URB has been allocated, restoring the intended behavior and preventing the leak in es58x_open().

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-64kb · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-azure · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-default · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-default · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.27.1.160000.2.8 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.34.1.150700.17.23.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-default-base · sles 16.0 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-docs · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-livepatch-SLE15-SP7-RT_Update_10 · sles 15.7 1-150700.1.3.1 SUSE-SU-2026:0962-1 Mar 23, 2026
kernel-livepatch-SLE15-SP7_Update_10 · sles 15.7 1-150700.15.3.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-source · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-source · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-syms · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.27.1 OPENSUSE-SU-2026:20416-1 Mar 25, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.34.1 SUSE-SU-2026:1081-1 Mar 26, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.27.1 SUSE-SU-2026:20931-1 Mar 25, 2026
linux · Debian 12.15 (bookworm) 6.1.162-1 DEBIAN-CVE-2026-23037 Jan 31, 2026
linux · Debian 13.5 (trixie) 6.12.69-1 DEBIAN-CVE-2026-23037 Jan 31, 2026
linux · Debian 14 6.18.8-1 DEBIAN-CVE-2026-23037 Jan 31, 2026

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