Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: target_core_configfs: Add length check to avoid buffer overflow
A buffer overflow arises from the usage of snprintf to write into the
buffer "buf" in target_lu_gp_members_show function located in
/drivers/target/target_core_configfs.c. This buffer is allocated with
size LU_GROUP_NAME_BUF (256 bytes).
snprintf(...) formats multiple strings into buf with the HBA name
(hba->hba_group.cg_item), a slash character, a devicename (dev->
dev_group.cg_item) and a newline character, the total formatted string
length may exceed the buffer size of 256 bytes.
Since snprintf() returns the total number of bytes that would have been
written (the length of %s/%sn ), this value may exceed the buffer length
(256 bytes) passed to memcpy(), this will ultimately cause function
memcpy reporting a buffer overflow error.
An additional check of the return value of snprintf() can avoid this
buffer overflow.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.38 | 5.4.301 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.16.11-1 | — |
| Debian 13 | linux | 6.12.57-1 | — |
| Debian 12 | linux | 6.1.158-1 | DSA-6053-1 |
| Debian 11 | linux | 5.10.247-1 | DLA-4404-1 |
| Debian 11 | linux-6.1 | 6.1.158-1~deb11u1 | DLA-4379-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | 6.8.0-1017.21 | — |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1084.86 | — |
| Ubuntu 25.10 | linux | 6.17.0-6.6 | — |
| Ubuntu 25.10 | linux-aws +2 | 6.17.0-1003.3 | — |
| Ubuntu 25.10 | linux-azure | 6.17.0-1006.6 | — |
| Ubuntu 25.10 | linux-azure-fde | No fix yet | — |
| Ubuntu 25.10 | linux-raspi | 6.17.0-1004.4 | — |
| Ubuntu 25.10 | linux-realtime | 6.17.0-1002.3 | — |
| Ubuntu 25.10 | linux-riscv | 6.17.0-6.6.1 | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-106.106 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1050.53 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1051.57 | USN-8125-1 |
| Ubuntu 24.04 LTS | linux-azure-fde | 6.8.0-1058.65 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1039.42 | — |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1052.55 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1048.53 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1035.38 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1049.49 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-106.106.1 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1049.52 | USN-8100-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1049.52.1 | USN-8100-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1020.20 | — |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1047.48 | USN-8095-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1050.54 | USN-8095-5 |
| Ubuntu 24.04 LTS | linux-riscv +18 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1028.29 | USN-8261-1 |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-170.180 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1100.107 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1050.53~22.04.1 | USN-8095-4 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1109.118 | USN-8163-2 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | USN-8126-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1109.118.1 | — |
| Ubuntu 22.04 LTS | linux-azure-fde-6.8 | 6.8.0-1058.65~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1100.109 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1052.55~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1096.102 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1083.91 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 +1 | 6.8.0-106.106~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1094.97 | USN-8033-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1049.49~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1095.101 | USN-8033-8 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1092.97 | USN-8033-5 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-106.106.1~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1095.96 | USN-8033-6 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1049.52~22.04.1 | USN-8100-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1052.52 | USN-8034-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1041.41 | USN-8034-2 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1097.103 | USN-8033-5 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1047.48~22.04.1 | USN-8095-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1097.100 | USN-8141-1 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1064.68 | USN-8033-7 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2040.41 | USN-8095-5 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1045.46 | USN-8095-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1092.94 | USN-8033-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1099.108 | USN-8033-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1045.46~22.04.1 | USN-8095-3 |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-aws-fips | 6.8.0-1050.53+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1052.58+fips1 | USN-8165-1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-106.106+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1052.55+fips1 | USN-8095-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1100.107+fips1 | USN-8033-3 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1109.118+fips1 | USN-8163-1 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-170.180+fips1 | USN-8033-3 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1100.109+fips1 | USN-8033-3 |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +10 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux-aws-5.15 | 5.15.0-1100.107~20.04.2 | USN-8033-4 |
| Ubuntu Pro 20.04 LTS | linux-azure-5.15 | 5.15.0-1110.119~20.04.1 | USN-8243-1 |
| Ubuntu Pro 20.04 LTS | linux-gcp-5.15 | 5.15.0-1100.109~20.04.1 | USN-8033-5 |
| Ubuntu Pro 20.04 LTS | linux-hwe-5.15 | 5.15.0-170.180~20.04.3 | USN-8033-1 |
| Ubuntu Pro 20.04 LTS | linux-ibm-5.15 | 5.15.0-1094.97~20.04.1 | USN-8033-1 |
| Ubuntu Pro 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1095.101~20.04.1 | USN-8033-7 |
| Ubuntu Pro 20.04 LTS | linux-lowlatency-hwe-5.15 | 5.15.0-170.180~20.04.1 | USN-8033-1 |
| Ubuntu Pro 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1052.52~20.04.2 | USN-8034-1 |
| Ubuntu Pro 20.04 LTS | linux-oracle-5.15 | 5.15.0-1097.103~20.04.1 | USN-8033-5 |
| Ubuntu Pro 20.04 LTS | linux-riscv-5.15 | 5.15.0-1095.99~20.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +7 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.296.1 | SUSE-SU-2026:1078-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.2 | gdk-pixbuf | 2.42.12-160000.4.1 | SUSE-SU-2026:21230-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | SUSE-SU-2026:21237-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.28.1 | SUSE-SU-2026:21237-1, SUSE-SU-2026:21230-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-41.1.21.18 | SUSE-SU-2026:21114-1 |
| SLE Micro 6.1 | kernel-rt +4 | 6.4.0-41.1 | SUSE-SU-2026:21255-1, SUSE-SU-2026:21114-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-41.1.21.18 | SUSE-SU-2026:21123-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-41.1 | SUSE-SU-2026:21123-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_11 | 1-150700.1.3.1 | SUSE-SU-2026:1573-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.296.1 | SUSE-SU-2026:1078-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_78 | 1-8.3.1 | SUSE-SU-2026:1078-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt +1 | 6.4.0-150700.7.37.2 | SUSE-SU-2026:1573-1 |
| SUSE Real Time Module 15 SP7 | kernel-syms-rt | 6.4.0-150700.7.37.1 | SUSE-SU-2026:1573-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 6.17.5-1.1 | openSUSE-SU-2025:15671-1 |
| openSUSE Tumbleweed | kernel-source-longterm | 6.18.16-1.1 | openSUSE-SU-2026:10301-1 |
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.27.1.160000.2.8 | openSUSE-SU-2026:20572-1 |
| openSUSE Leap 16.0 | kernel-rt +11 | 6.12.0-160000.28.1 | openSUSE-SU-2026:20572-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.12.53-69.119 +1 | 1:1.0-0.amzn2023 | ALAS2023-2025-1254, ALAS2023-2025-1253 |
| Amazon Linux 2023 | perf +14 | 1:6.1.156-177.286.amzn2023 | ALAS2023-2025-1253 |
| Amazon Linux 2023 | perf6.12 +14 | 1:6.12.53-69.119.amzn2023 | ALAS2023-2025-1254 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.112.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | bpftool +18 | 5.15.0-315.196.5.1.el9uek | ELSA-2025-28048 |
| Oracle Linux 7 | kernel-uek +6 | 5.4.17-2136.350.3.1.el8uek | ELSA-2025-28049 |
| Oracle Linux 7 | kernel-uek-tools | 5.4.17-2136.350.3.1.el7uek | ELSA-2025-28049 |
Advisories 42
- USN-8243-1 linux-azure-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8100-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8163-1 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8141-1 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8165-1 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8163-2 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- WID-SEC-2025-2298 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 3, 2026
- USN-8034-2 linux-nvidia-tegra-igx vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-1 linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8034-1 linux-nvidia-tegra, linux-nvidia-tegra-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-4 linux-aws-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-8 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-3 linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-7 linux-intel-iotg-5.15, linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-5 linux-gcp-5.15, linux-kvm, linux-oracle, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-2 linux-intel-iot-realtime, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8033-6 linux-nvidia vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-1 linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-2 linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8126-1 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-5 linux-raspi, linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8125-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-4 linux-aws-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8095-3 linux-realtime, linux-realtime-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8261-1 linux-xilinx vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- SUSE-SU-2026:21230-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jul 9, 2026
- SUSE-SU-2026:21255-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 24, 2026
- SUSE-SU-2026:1573-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 24, 2026
- SUSE-SU-2026:21237-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 23, 2026
- openSUSE-SU-2026:20572-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 22, 2026
- SUSE-SU-2026:21123-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 18, 2026
- SUSE-SU-2026:21114-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Apr 18, 2026
- SUSE-SU-2026:1078-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 27, 2026
- openSUSE-SU-2025:15671-1 kernel-devel-6.17.5-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10301-1 kernel-devel-longterm-6.18.16-1.1 on GA media SUSE / openSUSE Security Updates · Mar 8, 2026
- DLA-4404-1 linux - security update Debian Security (DSA / DLA) · Dec 12, 2025
- ELSA-2025-28048 Important: Unbreakable Enterprise kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Dec 12, 2025
- ELSA-2025-28049 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 12, 2025
- DLA-4379-1 linux-6.1 - security update Debian Security (DSA / DLA) · Nov 25, 2025
- DSA-6053-1 linux - security update Debian Security (DSA / DLA) · Nov 11, 2025
- ALAS2023-2025-1254 Important: kernel6.12 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 27, 2025
- ALAS2023-2025-1253 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 27, 2025
References
- https://git.kernel.org/stable/c/e6eeee5dc0d9221ff96d1b229b1d0222c8871b84
- https://git.kernel.org/stable/c/764a91e2fc9639e07aac93bc70e387e6b1e33084
- https://git.kernel.org/stable/c/ddc79fba132b807ff775467acceaf48b456e008b
- https://git.kernel.org/stable/c/e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4
- https://git.kernel.org/stable/c/f03aa5e39da7d045615b3951d2a6ca1d7132f881
- https://git.kernel.org/stable/c/53c6351597e6a17ec6619f6f060d54128cb9a187
- https://git.kernel.org/stable/c/4b292286949588bd2818e66ff102db278de8dd26
- https://git.kernel.org/stable/c/a150275831b765b0f1de8b8ff52ec5c6933ac15d
- https://git.kernel.org/stable/c/27e06650a5eafe832a90fd2604f0c5e920857fae