Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: gus: fix null pointer dereference on pointer block
The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.12 | 4.4.293 |
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 | 5.15.5-1 | — |
| Debian 13 | linux | 5.15.5-1 | — |
| Debian 12 | linux | 5.15.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-97.110 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1064.67 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1068.71 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1026.29 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1063.67 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1032.33 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1013.14 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1054.56 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1062.66 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1052.58 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-167.175 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1119.127 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1064.67~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1131.144 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1068.71~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1115.129 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1063.67~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-97.110~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1014.15~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1106.108 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1086.94 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1062.66~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1052.58~18.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1041.47 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2060.62 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2042.46 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1076.85 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2025.27 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1119.126~16.04.2 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1130.143~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1115.129~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-167.175~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1086.94~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1130.143~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.62.2 | SUSE-SU-2024:1659-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.62.2.150500.6.27.2 | SUSE-SU-2024:1659-1 |
| SLES 15 SP5 | kernel-syms | 5.14.21-150500.55.62.1 | SUSE-SU-2024:1659-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLES 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SLES 15 SP3 | kernel-docs | 5.3.18-150300.59.161.2 | SUSE-SU-2024:1642-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.191.1.150200.9.97.1 | SUSE-SU-2024:1650-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.191.1 | SUSE-SU-2024:1650-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SLES for SAP 15 SP3 | kernel-docs | 5.3.18-150300.59.161.2 | SUSE-SU-2024:1642-1 |
| SLES for SAP 15 SP3 | kernel-syms +4 | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.191.1.150200.9.97.1 | SUSE-SU-2024:1650-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.191.1 | SUSE-SU-2024:1650-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.182.1 | SUSE-SU-2024:1646-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.62.2 | SUSE-SU-2024:1659-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.62.2.150500.6.27.2 | SUSE-SU-2024:1659-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.52.1 | SUSE-SU-2024:1663-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.169.1 | SUSE-SU-2024:1645-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.169.1 | SUSE-SU-2024:1645-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.62.2 | SUSE-SU-2024:1659-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_14 | 1-150500.11.5.1 | SUSE-SU-2024:1663-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_13 | 1-150500.11.3.2 | SUSE-SU-2024:1659-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_26 | 1-150400.9.3.1 | SUSE-SU-2024:1641-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_44 | 1-150300.7.3.1 | SUSE-SU-2024:1642-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.191.1 | SUSE-SU-2024:1650-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_48 | 1-150200.5.3.1 | SUSE-SU-2024:1650-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_56 | 1-8.3.1 | SUSE-SU-2024:1870-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE HPC 15 SP3 | kernel-64kb +5 | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SLE HPC 15 SP3 | kernel-docs | 5.3.18-150300.59.161.2 | SUSE-SU-2024:1642-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.191.1.150200.9.97.1 | SUSE-SU-2024:1650-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.191.1 | SUSE-SU-2024:1650-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.52.1 | SUSE-SU-2024:1663-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +5 | 5.3.18-150300.59.161.1 | SUSE-SU-2024:1642-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.161.1.150300.18.94.1 | SUSE-SU-2024:1642-1 |
| SUSE Enterprise Storage 7.1 | kernel-docs | 5.3.18-150300.59.161.2 | SUSE-SU-2024:1642-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +2 | 5.14.21-150500.55.62.1 | SUSE-SU-2024:1659-1 |
| openSUSE Leap 15.5 | kernel-64kb +7 | 5.14.21-150500.55.62.2 | SUSE-SU-2024:1659-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.62.2.150500.6.27.2 | SUSE-SU-2024:1659-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.52.1 | SUSE-SU-2024:1663-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.4 | kernel-rt | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
Advisories 12
- WID-SEC-2024-0851 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 12, 2026
- SUSE-SU-2024:1663-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1645-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1647-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1870-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1650-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1641-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1642-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1659-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2024:1644-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
References
- https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be
- https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc
- https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c
- https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315
- https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc
- https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f
- https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3
- https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa