🛡️ CVE-2026-46080 on Ubuntu — linux
Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: split transactions in dio completion to avoid credit exhaustion During ocfs2 dio operations, JBD2 may report warnings via following call trace: ocfs2_dio_end_io_write ocfs2_mark_extent_written ocfs2_change_extent_flag ocfs2_split_extent ocfs2_try_to_merge_extent ocfs2_extend_rotate_transaction ocfs2_extend_trans jbd2__journal_restart start_this_handle output: JBD2: kworker/6:2 wants too many credits credits:5450 rsv_credits:0 max:5449 To prevent exceeding the credits limit, modify ocfs2_dio_end_io_write() to handle extents in a batch of transaction. Additionally, relocate ocfs2_del_inode_from_orphan(). The orphan inode should only be removed from the orphan list after the extent tree update is complete. This ensures that if a crash occurs in the middle of extent tree updates, we won't leave stale blocks beyond EOF. This patch also changes the logic for updating the inode size and removing orphan, making it similar to ext4_dio_write_end_io(). Both operations are performed only when everything looks good. Finally, thanks to Jans and Joseph for providing the bug fix prototype and suggestions.
Distribution advisory
This page covers CVE-2026-46080 as tracked by Ubuntu, for the package linux. The fix is available in version 7.0.0-27.27; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Affected software and timeline
Affected software: linux (fixed in 7.0.0-27.27), linux-allwinner-5.19, linux-aws (fixed in 7.0.0-1008.8), linux-aws-5.0, linux-aws-5.11, linux-aws-5.13, linux-aws-5.15 (fixed in 5.15.0-1112.119~20.04.1), linux-aws-5.19, linux-aws-5.3, linux-aws-5.4, linux-aws-5.8, linux-aws-6.14, linux-aws-6.17, linux-aws-6.2, linux-aws-6.5, linux-aws-6.8 (fixed in 6.8.0-1061.64~22.04.1), linux-aws-fips (fixed in 6.8.0-1061.64+fips1), linux-aws-hwe, linux-azure (fixed in 7.0.0-1010.10), linux-azure-4.15, linux-azure-5.11, linux-azure-5.13, linux-azure-5.15 (fixed in 5.15.0-1117.126~20.04.1), linux-azure-5.19, linux-azure-5.3, linux-azure-5.4, linux-azure-5.8, linux-azure-6.11, linux-azure-6.14, linux-azure-6.17, linux-azure-6.2, linux-azure-6.5, linux-azure-6.8 (fixed in 6.8.0-1063.71~22.04.1), linux-azure-edge, linux-azure-fde (fixed in 7.0.0-1009.9), linux-azure-fde-5.15 (fixed in 5.15.0-1117.126~20.04.2), linux-azure-fde-5.19, linux-azure-fde-6.14, linux-azure-fde-6.17, linux-azure-fde-6.2, linux-azure-fde-6.8 (fixed in 6.8.0-1062.69~22.04.1), linux-azure-fips (fixed in 6.8.0-1063.71+fips2), linux-azure-nvidia, linux-azure-nvidia-6.14, linux-bluefield, linux-fips (fixed in 6.8.0-136.136+fips2), linux-gcp (fixed in 7.0.0-1007.7), linux-gcp-4.15, linux-gcp-5.11, linux-gcp-5.13, linux-gcp-5.15, linux-gcp-5.19, linux-gcp-5.3, linux-gcp-5.4, linux-gcp-5.8, linux-gcp-6.11, linux-gcp-6.14, linux-gcp-6.17, linux-gcp-6.2, linux-gcp-6.5, linux-gcp-6.8 (fixed in 6.8.0-1064.72~22.04.1), linux-gcp-fips (fixed in 6.8.0-1064.72+fips1), linux-gke (fixed in 6.8.0-1059.67), linux-gke-4.15, linux-gke-5.15, linux-gke-5.4, linux-gkeop (fixed in 6.8.0-1046.50), linux-gkeop-5.15, linux-gkeop-5.4, linux-hwe, linux-hwe-5.11, linux-hwe-5.13, linux-hwe-5.15 (fixed in 5.15.0-186.196~20.04.1), linux-hwe-5.19, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-6.11, linux-hwe-6.14, linux-hwe-6.17, linux-hwe-6.2, linux-hwe-6.5, linux-hwe-6.8 (fixed in 6.8.0-136.136~22.04.1), linux-hwe-7.0 (fixed in 7.0.0-28.28~24.04.1), linux-hwe-edge, linux-ibm (fixed in 7.0.0-1009.9), linux-ibm-5.15 (fixed in 5.15.0-1106.110~20.04.1), linux-ibm-5.4, linux-ibm-6.8 (fixed in 6.8.0-1061.62~22.04.1), linux-intel-5.13, linux-intel-iot-realtime (fixed in 5.15.0-1104.106), linux-intel-iotg (fixed in 5.15.0-1107.113), linux-intel-iotg-5.15 (fixed in 5.15.0-1107.113~20.04.1), linux-iot, linux-kvm (fixed in 5.15.0-1104.109), linux-lowlatency (fixed in 6.8.0-136.136.2), linux-lowlatency-hwe-5.15 (fixed in 5.15.0-184.194~20.04.1), linux-lowlatency-hwe-5.19, linux-lowlatency-hwe-6.11, linux-lowlatency-hwe-6.2, linux-lowlatency-hwe-6.5, linux-lowlatency-hwe-6.8 (fixed in 6.8.0-136.136.2~22.04.1), linux-lts-xenial, linux-nvidia (fixed in 7.0.0-1013.13), linux-nvidia-6.11, linux-nvidia-6.17, linux-nvidia-6.2, linux-nvidia-6.5, linux-nvidia-6.8 (fixed in 6.8.0-1059.62~22.04.1), linux-nvidia-lowlatency (fixed in 6.8.0-1059.62.1), linux-nvidia-tegra (fixed in 6.8.0-1030.31), linux-nvidia-tegra-5.15 (fixed in 5.15.0-1064.66~20.04.1), linux-nvidia-tegra-igx (fixed in 5.15.0-1053.53), linux-oem, linux-oem-5.10, linux-oem-5.13, linux-oem-5.14, linux-oem-5.17, linux-oem-5.6, linux-oem-6.0, linux-oem-6.1, linux-oem-6.11, linux-oem-6.14, linux-oem-6.17, linux-oem-6.5, linux-oem-6.8, linux-oem-7.0 (fixed in 7.0.0-1008.8), linux-oracle (fixed in 7.0.0-1007.7), linux-oracle-5.0, linux-oracle-5.11, linux-oracle-5.13, linux-oracle-5.15 (fixed in 5.15.0-1109.115~20.04.1), linux-oracle-5.3, linux-oracle-5.4, linux-oracle-5.8, linux-oracle-6.14, linux-oracle-6.17, linux-oracle-6.5, linux-oracle-6.8 (fixed in 6.8.0-1058.61~22.04.1), linux-raspi (fixed in 7.0.0-1014.14), linux-raspi-5.4, linux-raspi-realtime, linux-raspi2, linux-realtime (fixed in 7.0.0-27.27.1), linux-realtime-6.14, linux-realtime-6.17, linux-realtime-6.8 (fixed in 6.8.1-1056.57~22.04.2), linux-riscv (fixed in 7.0.0-27.27.1), linux-riscv-5.11, linux-riscv-5.15 (fixed in 5.15.0-1106.110~20.04.1), linux-riscv-5.19, linux-riscv-5.8, linux-riscv-6.14, linux-riscv-6.17, linux-riscv-6.5, linux-riscv-6.8 (fixed in 6.8.0-136.136~22.04.3), linux-starfive-5.19, linux-starfive-6.2, linux-starfive-6.5, linux-xilinx (fixed in 6.8.0-1033.34) and linux-xilinx-zynqmp (fixed in 5.15.0-1075.79). Published on 27 May 2026 and last revised on 11 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.cve.org (Report)
git.kernel.org (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
CVE-2026-46080 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 7.0.0-27.27 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 7.0.0-1008.8 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1112.119~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | — |
| linux-aws-5.8 | — | — |
| linux-aws-6.14 | — | — |
| linux-aws-6.17 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1061.64~22.04.1 |
| linux-aws-fips | — | 6.8.0-1061.64+fips1 |
| linux-aws-hwe | — | — |
| linux-azure | — | 7.0.0-1010.10 |
| linux-azure-4.15 | — | — |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1117.126~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | — |
| linux-azure-5.8 | — | — |
| linux-azure-6.11 | — | — |
| linux-azure-6.14 | — | — |
| linux-azure-6.17 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1063.71~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | 7.0.0-1009.9 |
| linux-azure-fde-5.15 | — | 5.15.0-1117.126~20.04.2 |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.14 | — | — |
| linux-azure-fde-6.17 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fde-6.8 | — | 6.8.0-1062.69~22.04.1 |
| linux-azure-fips | — | 6.8.0-1063.71+fips2 |
| linux-azure-nvidia | — | — |
| linux-azure-nvidia-6.14 | — | — |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-136.136+fips2 |
| linux-gcp | — | 7.0.0-1007.7 |
| linux-gcp-4.15 | — | — |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | — |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | — |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.11 | — | — |
| linux-gcp-6.14 | — | — |
| linux-gcp-6.17 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1064.72~22.04.1 |
| linux-gcp-fips | — | 6.8.0-1064.72+fips1 |
| linux-gke | — | 6.8.0-1059.67 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1046.50 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-186.196~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | — |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.11 | — | — |
| linux-hwe-6.14 | — | — |
| linux-hwe-6.17 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-136.136~22.04.1 |
| linux-hwe-7.0 | — | 7.0.0-28.28~24.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 7.0.0-1009.9 |
| linux-ibm-5.15 | — | 5.15.0-1106.110~20.04.1 |
| linux-ibm-5.4 | — | — |
| linux-ibm-6.8 | — | 6.8.0-1061.62~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1104.106 |
| linux-intel-iotg | — | 5.15.0-1107.113 |
| linux-intel-iotg-5.15 | — | 5.15.0-1107.113~20.04.1 |
| linux-iot | — | — |
| linux-kvm | — | 5.15.0-1104.109 |
| linux-lowlatency | — | 6.8.0-136.136.2 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-184.194~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.11 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-136.136.2~22.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 7.0.0-1013.13 |
| linux-nvidia-6.11 | — | — |
| linux-nvidia-6.17 | — | — |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1059.62~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1059.62.1 |
| linux-nvidia-tegra | — | 6.8.0-1030.31 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1064.66~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1053.53 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.11 | — | — |
| linux-oem-6.14 | — | — |
| linux-oem-6.17 | — | — |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | — |
| linux-oem-7.0 | — | 7.0.0-1008.8 |
| linux-oracle | — | 7.0.0-1007.7 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1109.115~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | — |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.14 | — | — |
| linux-oracle-6.17 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1058.61~22.04.1 |
| linux-raspi | — | 7.0.0-1014.14 |
| linux-raspi-5.4 | — | — |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 7.0.0-27.27.1 |
| linux-realtime-6.14 | — | — |
| linux-realtime-6.17 | — | — |
| linux-realtime-6.8 | — | 6.8.1-1056.57~22.04.2 |
| linux-riscv | — | 7.0.0-27.27.1 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1106.110~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.14 | — | — |
| linux-riscv-6.17 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-136.136~22.04.3 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1033.34 |
| linux-xilinx-zynqmp | — | 5.15.0-1075.79 |
References
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