Description
In the Linux kernel, the following vulnerability has been resolved:
smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()
This happens when called from SMB2_read() while using rdma
and reaching the rdma_readwrite_threshold.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.1.16 – < 6.1.108, 6.2.3 – < 6.3, 6.3 | 6.1.108 |
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 | 6.10.9-1 | — |
| Debian 13 | linux | 6.10.9-1 | — |
| Debian 12 | linux | 6.1.112-1 | DSA-5782-1 |
| Debian 11 | linux-6.1 | 6.1.119-1~deb11u1 | DLA-4008-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux | 6.8.0-50.51 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1020.22 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1020.23 | USN-7196-1 |
| Ubuntu 24.04 LTS | linux-gcp +1 | 6.8.0-1019.21 | USN-7155-1, USN-7154-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1015.19 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1002.4 | USN-7156-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1017.17 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1019.21.1 | USN-7155-1 |
| Ubuntu 24.04 LTS | linux-oem-6.8 | 6.8.0-1018.18 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-oracle +1 | 6.8.0-1017.18 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1016.18 | USN-7154-1 |
| Ubuntu 24.04 LTS | linux-riscv +1 | 6.8.0-50.51.1 | USN-7154-1 |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1020.22~22.04.1 | USN-7154-1 |
| Ubuntu 22.04 LTS | linux-azure +34 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1020.23~22.04.1 | USN-7196-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 +1 | 6.8.0-1019.21~22.04.1 | USN-7155-1, USN-7154-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-50.51~22.04.1 | USN-7154-2 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1017.17~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1017.18~22.04.1 | USN-7154-1 |
| Ubuntu 22.04 LTS | linux-riscv-6.8 +1 | 6.8.0-50.51.1~22.04.1 | USN-7154-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2015.16 | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1013.14 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1013.14~22.04.1 | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-78.78+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-azure-fips | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux-azure-5.15 +1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +4 | 6.4.0-150600.23.25.1 | SUSE-SU-2024:3561-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.14.1 | SUSE-SU-2024:3551-1 |
| SLES 15 SP6 | kernel-coco +3 | 6.4.0-15061.6.coco15sp6.1 | SUSE-SU-2024:3553-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.25.1.150600.12.10.2 | SUSE-SU-2024:3561-1 |
| SLES 15 SP6 | kernel-docs +1 | 6.4.0-150600.23.25.2 | SUSE-SU-2024:3561-1 |
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.83.1 | SUSE-SU-2024:3569-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.69.1 | SUSE-SU-2024:3587-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.83.1.150500.6.37.1 | SUSE-SU-2024:3569-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.200.1 | SUSE-SU-2024:3591-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.231.1 | SUSE-SU-2024:3559-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.200.1 | SUSE-SU-2024:3591-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.231.1 | SUSE-SU-2024:3559-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.203.1 | SUSE-SU-2024:3566-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20073-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_3 +1 | 1-1.2 | SUSE-SU-2025:20077-1, SUSE-SU-2025:20073-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-11.1 | SUSE-SU-2025:20077-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-20.1 | SUSE-SU-2025:20073-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.83.1 | SUSE-SU-2024:3569-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.83.1.150500.6.37.1 | SUSE-SU-2024:3569-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.73.1 | SUSE-SU-2024:3592-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.25.1 | SUSE-SU-2024:3561-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_4 | 1-150600.1.3.1 | SUSE-SU-2024:3564-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_5 | 1-150600.13.3.1 | SUSE-SU-2024:3561-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.83.1 | SUSE-SU-2024:3569-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_20 +1 | 1-150500.11.3.1 | SUSE-SU-2024:3592-1, SUSE-SU-2024:3569-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.231.1 | SUSE-SU-2024:3559-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_61 | 1-8.3.1 | SUSE-SU-2024:3559-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.14.1 | SUSE-SU-2024:3564-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.73.1 | SUSE-SU-2024:3592-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +8 | 6.4.0-150600.23.25.1 | SUSE-SU-2024:3561-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.14.1 | SUSE-SU-2024:3551-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.25.1.150600.12.10.2 | SUSE-SU-2024:3561-1 |
| openSUSE Leap 15.6 | kernel-docs +1 | 6.4.0-150600.23.25.2 | SUSE-SU-2024:3561-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.14.1 | SUSE-SU-2024:3564-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.69.1 | SUSE-SU-2024:3587-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.73.1 | SUSE-SU-2024:3592-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-default | 5.14.21-150500.55.83.1 | SUSE-SU-2024:3569-1 |
| openSUSE Leap Micro 5.5 | kernel-default-base | 5.14.21-150500.55.83.1.150500.6.37.1 | SUSE-SU-2024:3569-1 |
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.73.1 | SUSE-SU-2024:3592-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.109-118.189 | 1.0-0.amzn2023 | ALAS2023-2024-779 |
| Amazon Linux 2023 | perf +14 | 6.1.109-118.189.amzn2023 | ALAS2023-2024-779 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | 6.6.51.1-1 | — |
Advisories 21
- USN-7154-1 linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oem-6.8, linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7155-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7196-1 linux-azure, linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7156-1 linux-gkeop vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7154-2 linux-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- SUSE-SU-2025:20073-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20077-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4008-1 linux-6.1 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5782-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2024-2133 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 16, 2026
- ALAS2023-2024-779 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- SUSE-SU-2024:3551-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3561-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3566-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3592-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3564-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3587-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3591-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3559-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3553-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3569-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026