Description
In the Linux kernel, the following vulnerability has been resolved:
drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE)
Lack of check for copy-on-write (COW) mapping in drm_gem_shmem_mmap
allows users to call mmap with PROT_WRITE and MAP_PRIVATE flag
causing a kernel panic due to BUG_ON in vmf_insert_pfn_prot:
BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags));
Return -EINVAL early if COW mapping is detected.
This bug affects all drm drivers using default shmem helpers.
It can be reproduced by this simple example:
void *ptr = mmap(0, size, PROT_WRITE, MAP_PRIVATE, fd, mmap_offset);
ptr[0] = 0;
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.2 | 5.10.229 |
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 | 6.9.7-1 | — |
| Debian 13 | linux | 6.9.7-1 | — |
| Debian 12 | linux | 6.1.115-1 | — |
| Debian 11 | linux | 5.10.234-1 | DLA-4075-1 |
| Debian 11 | linux-6.1 | 6.1.119-1~deb11u1 | DLA-4008-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1060.62 | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-44.44 | USN-6999-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1015.16 | USN-6999-1 |
| Ubuntu 24.04 LTS | linux-gcp +1 | 6.8.0-1014.16 | USN-7004-1, USN-6999-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1010.13 | USN-6999-1 |
| Ubuntu 24.04 LTS | linux-ibm +2 | 6.8.0-1012.12 | USN-6999-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1013.14 | USN-7005-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1013.14.1 | USN-7005-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1011.12 | USN-6999-2 |
| Ubuntu 24.04 LTS | linux-riscv +1 | 6.8.0-44.44.1 | USN-6999-1 |
| Ubuntu 22.04 LTS | linux | 5.15.0-133.144 | USN-7288-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1078.85 | USN-7308-1 |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1015.16~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1081.90 | USN-7289-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1081.90.1 | USN-7289-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1077.86 | USN-7291-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 +1 | 6.8.0-1014.16~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1075.81 | USN-7291-1, USN-7289-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1060.68 | USN-7289-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-45.45~22.04.1 | USN-7029-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1070.73 | USN-7289-3 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 +1 | 6.8.0-1012.12~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1073.79 | USN-7289-4 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1076.81 | USN-7388-1 |
| Ubuntu 22.04 LTS | linux-lowlatency | 5.15.0-133.143 | USN-7288-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1072.73 | USN-7289-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1013.14~22.04.1 | USN-7005-2 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1033.33 | USN-7389-1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1021.21 | USN-7389-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1072.75 | USN-7305-1 |
| Ubuntu 22.04 LTS | linux-riscv +31 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv-6.8 +1 | 6.8.0-44.44.1~22.04.1 | USN-7008-1 |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1044.48 | USN-7390-1 |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1080.87~20.04.1 | USN-7388-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1081.90~20.04.1 | USN-7289-2 |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1081.90~20.04.1.1 | USN-7289-2 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1077.86~20.04.1 | USN-7291-1 |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 | 5.15.0-134.145~20.04.1 | USN-7331-1 |
| Ubuntu 20.04 LTS | linux-ibm-5.15 | 5.15.0-1074.77~20.04.1 | USN-7458-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1073.79~20.04.2 | USN-7289-4 |
| Ubuntu 20.04 LTS | linux-lowlatency-hwe-5.15 | 5.15.0-133.143~20.04.1 | USN-7288-2 |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1075.81~20.04.1 | USN-7289-2 |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1073.77~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2010.10 | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1008.8 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1071.73 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1078.86 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1008.8~22.04.1 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-78.78+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1078.85+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1080.89+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-133.144+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1077.86+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | 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-nvidia-tegra-5.15 | 5.15.0-1039.39~20.04.1 | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 +6 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.4.0-503.11.1.el9_5 | RHSA-2024:9315 |
| RHEL 9 | rv +67 | 5.14.0-503.11.1.el9_5 | RHSA-2024:9315 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.22.1 | SUSE-SU-2024:3383-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.11.1 | SUSE-SU-2024:3194-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.22.1.150600.12.8.3 | SUSE-SU-2024:3383-1 |
| SLES 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.63.1 | SUSE-SU-2024:2947-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLES 15 SP5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20044-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_2 +1 | 1-1.1 | SUSE-SU-2025:20047-1, SUSE-SU-2025:20044-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-10.1 | SUSE-SU-2025:20047-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-19.1 | SUSE-SU-2025:20044-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.22.1 | SUSE-SU-2024:3383-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_2 | 1-150600.1.3.2 | SUSE-SU-2024:3195-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_4 | 1-150600.13.3.3 | SUSE-SU-2024:3383-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_17 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2939-1, SUSE-SU-2024:2894-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +2 | 6.4.0-150600.10.8.3 | SUSE-SU-2024:3195-1 |
| SUSE Real Time Module 15 SP6 | kernel-syms-rt | 6.4.0-150600.10.8.1 | SUSE-SU-2024:3195-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.22.1 | SUSE-SU-2024:3383-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.11.1 | SUSE-SU-2024:3194-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.22.1.150600.12.8.3 | SUSE-SU-2024:3383-1 |
| openSUSE Leap 15.6 | kernel-rt +2 | 6.4.0-150600.10.8.3 | SUSE-SU-2024:3195-1 |
| openSUSE Leap 15.6 | kernel-syms-rt | 6.4.0-150600.10.8.1 | SUSE-SU-2024:3195-1 |
| openSUSE Leap 15.5 | dtb-aarch64 +9 | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.63.1 | SUSE-SU-2024:2947-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-docs | 5.14.21-150500.55.73.2 | SUSE-SU-2024:2939-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 | SUSE-SU-2024:2939-1 |
| openSUSE Leap Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 | SUSE-SU-2024:2939-1 |
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.64.1 | SUSE-SU-2024:2894-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.115-126.197 | 1.0-0.amzn2023 | ALAS2023-2025-794 |
| Amazon Linux 2023 | perf +14 | 6.1.115-126.197.amzn2023 | ALAS2023-2025-794 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.4.0-503.11.1.el9_5 | ELSA-2024-9315 |
| Oracle Linux 9 | rv +28 | 5.14.0-503.11.1.el9_5 | ELSA-2024-9315 |
Advisories 35
- RHSA-2024:9315 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2024-1607 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 5, 2026
- USN-7458-1 linux-ibm-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7289-2 linux-azure-5.15, linux-azure-fde-5.15, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7289-1 linux-azure, linux-azure-fde, linux-gkeop, linux-nvidia, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7289-3 linux-ibm vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7388-1 linux-aws-5.15, linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7389-1 linux-nvidia-tegra, linux-nvidia-tegra-igx vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7291-1 linux-gcp, linux-gcp-5.15, linux-gke vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7390-1 linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7288-1 linux, linux-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7289-4 linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7308-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7331-1 linux-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7305-1 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7288-2 linux-lowlatency-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6999-1 linux, linux-aws, linux-gcp, linux-gke, linux-ibm, linux-lowlatency, linux-oem-6.8, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7029-1 linux-hwe-6.8 Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7005-1 linux-nvidia, linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7005-2 linux-nvidia-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7004-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-7008-1 linux-lowlatency-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- USN-6999-2 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- SUSE-SU-2025:20047-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20044-1 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
- DLA-4075-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2024:2947-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2939-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3195-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3383-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3194-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-794 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 2, 2025
- SUSE-SU-2024:2894-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-9315 Moderate: kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
References
- https://git.kernel.org/stable/c/a508a102edf8735adc9bb73d37dd13c38d1a1b10
- https://git.kernel.org/stable/c/3ae63a8c1685e16958560ec08d30defdc5b9cca0
- https://git.kernel.org/stable/c/2219e5f97244b79c276751a1167615b9714db1b0
- https://git.kernel.org/stable/c/1b4a8b89bf6787090b56424d269bf84ba00c3263
- https://git.kernel.org/stable/c/03c71c42809ef4b17f5d874cdb2d3bf40e847b86
- https://git.kernel.org/stable/c/39bc27bd688066a63e56f7f64ad34fae03fbe3b8