--- title: "CVE-2026-97555\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2026-97555?format=md keywords: index, follow --- # CVE-2026-97555 Publication date 25 September 2026 Last updated 25 September 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in DACL owner/group rewrite When id\_mode\_to\_cifs\_acl rewrites an existing DACL, it allocates a buffer sized according to the on-disk DACL length reported by dacl\_ptr->size. However, replace\_sids\_and\_copy\_aces may rewrite each ACE with a new owner/group SID obtained from the cifs.idmap upcall. Those SIDs can have up to SID\_MAX\_SUB\_AUTHORITIES (15) sub-authorities, making each ACE up to 76 bytes (sizeof(struct smb\_ace)). If the original DACL contains short SIDs (e.g., 1 sub-authority) while the replacement SIDs are long, the rewritten ACEs overflow the allocation. Fix this by always budgeting for worst-case SID expansion: allocate sizeof(struct smb\_acl) plus num\_aces \* sizeof(struct smb\_ace), which covers the smb\_acl header and room for every ACE at maximum SID size. This replaces the previous split logic that used dacl\_ptr->size for cifsacl mounts but num\_aces \* sizeof(struct smb\_ace) for mode\_from\_sid mounts: both paths can trigger the same rewrite and need the same headroom. KASAN reports this as: BUG: KASAN: slab-out-of-bounds in build\_sec\_desc+0x1e8a/0x2680 [cifs] Write of size 4 at addr ffff8881a5e25374 by task chown/5298 ... The buggy address is located 0 bytes to the right of allocated 884-byte region [ffff8881a5e25000, ffff8881a5e25374) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-hwe | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | | 16.04 LTS xenial | Needs evaluation | | linux-hwe-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-hwe-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.11 | | linux-hwe-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.13 | | linux-hwe-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.15 | | linux-hwe-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-hwe-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.2 | | linux-hwe-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.5 | | linux-hwe-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.8 | | linux-hwe-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-hwe-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-hwe-6.14 | | 22.04 LTS jammy | Not in release | | linux-hwe-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-edge | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-hwe-5.4 | | 16.04 LTS xenial | Ignored superseded by linux-hwe | | linux-lts-xenial | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 14.04 LTS trusty | Needs evaluation | | linux-kvm | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | linux-allwinner-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-aws | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-aws-5.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-aws-5.3 | | linux-aws-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-aws-5.4 | | linux-aws-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-aws-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.11 | | linux-aws-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.13 | | linux-aws-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.15 | | linux-aws-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-aws-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.2 | | linux-aws-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.5 | | linux-aws-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.8 | | linux-aws-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-aws-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-hwe | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 16.04 LTS xenial | Needs evaluation | | linux-azure | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-azure-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-azure-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.4 | | linux-azure-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-azure-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.11 | | linux-azure-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.13 | | linux-azure-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.15 | | linux-azure-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.2 | | linux-azure-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.5 | | linux-azure-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.8 | | linux-azure-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-azure-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-azure-6.14 | | 22.04 LTS jammy | Not in release | | linux-azure-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored superseded by linux-azure-fde-5.15 | | linux-azure-fde-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-fde-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-fde-6.2 | | linux-azure-fde-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored replaced by linux-azure-6.5 | | linux-azure-fde-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-azure-fde-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-nvidia | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-nvidia-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-bluefield | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-edge | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | | linux-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | 16.04 LTS xenial FIPS | Needs evaluation | | linux-aws-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-azure-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-gcp-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-gcp | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Ignored superseded by linux-gcp-5.3 | | 16.04 LTS xenial | Needs evaluation | | linux-gcp-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-gcp-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-gcp-5.4 | | linux-gcp-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-gcp-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.11 | | linux-gcp-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.13 | | linux-gcp-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.15 | | linux-gcp-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-gcp-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.2 | | linux-gcp-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.5 | | linux-gcp-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.8 | | linux-gcp-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-gcp-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-gcp-6.14 | | 22.04 LTS jammy | Not in release | | linux-gcp-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gcp-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gcp-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gke | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored end of kernel support | | linux-gke-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-gke-5.0 | | linux-gke-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored end of kernel support | | linux-gke-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-gkeop | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored end of kernel support | | linux-gkeop-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored end of kernel support | | linux-gkeop-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-ibm | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-ibm-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-ibm-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-ibm-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-intel-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-intel-iotg | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-intel-iotg-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-iot | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-intel-iot-realtime | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy Real-time | Needs evaluation | | linux-lowlatency | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-lowlatency-hwe-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-lowlatency-hwe-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.2 | | linux-lowlatency-hwe-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.5 | | linux-lowlatency-hwe-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.8 | | linux-lowlatency-hwe-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-lowlatency-hwe-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored replaced by linux-hwe-6.14 | | 22.04 LTS jammy | Not in release | | linux-nvidia | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-nvidia-6.5 | | linux-nvidia-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-nvidia-6.8 | | linux-nvidia-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored end of kernel support | | 22.04 LTS jammy | Not in release | | linux-nvidia-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-bos | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-nvidia-lowlatency | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-tegra | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-tegra-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-nvidia-tegra-igx | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-oracle | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | linux-oracle-5.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-oracle-5.3 | | linux-oracle-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-oracle-5.4 | | linux-oracle-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-oracle-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.11 | | linux-oracle-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.13 | | linux-oracle-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.15 | | linux-oracle-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-oracle-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oracle-6.8 | | linux-oracle-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-oracle-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oracle-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oracle-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | | linux-oem-5.6 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.10 | | linux-oem-5.10 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.13 | | linux-oem-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.14 | | linux-oem-5.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored replaced by linux-hwe-5.15 | | linux-oem-5.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | | linux-oem-6.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | | linux-oem-6.1 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.5 | | linux-oem-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.8 | | linux-oem-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-oem-6.14 | | 22.04 LTS jammy | Not in release | | linux-oem-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-oem-6.14 | | 22.04 LTS jammy | Not in release | | linux-oem-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem-7.0 | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-raspi | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-raspi2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored replaced by linux-raspi | | linux-raspi-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-raspi-realtime | 26.04 LTS resolute | Not in release | | 24.04 LTS noble Real-time | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-realtime | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble Real-time | Needs evaluation | | 22.04 LTS jammy Real-time | Needs evaluation | | linux-realtime-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-realtime-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-riscv | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Ignored replaced by linux-riscv-6.14 | | 22.04 LTS jammy | Ignored end of kernel support | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.8 | | linux-riscv-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.11 | | linux-riscv-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.13 | | linux-riscv-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-riscv-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-riscv-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-riscv-6.8 | | linux-riscv-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-riscv-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-riscv-6.17 | | 22.04 LTS jammy | Not in release | | linux-riscv-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-riscv-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-starfive-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-starfive-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-starfive-6.5 | | linux-starfive-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-xilinx | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-xilinx-zynqmp | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-realtime-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2026-97555?format=md#patch-details) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | linux | * Introduced by [bc3e9dd](https://git.kernel.org/linus/bc3e9dd9d104ca1b75644eab87b38ce8a924aef4), fixed by [0ee1507](https://git.kernel.org/linus/0ee150794c75bcd0be0e24ff3394f433cbae18cc) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-97555) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-97555) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-97555) * [Debian](https://security-tracker.debian.org/tracker/CVE-2026-97555) ### Other references * * * * *