🛡️ CVE-2024-42105 on Ubuntu — linux
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix inode number range checks Patch series "nilfs2: fix potential issues related to reserved inodes". This series fixes one use-after-free issue reported by syzbot, caused by nilfs2's internal inode being exposed in the namespace on a corrupted filesystem, and a couple of flaws that cause problems if the starting number of non-reserved inodes written in the on-disk super block is intentionally (or corruptly) changed from its default value. This patch (of 3): In the current implementation of nilfs2, "nilfs->ns_first_ino", which gives the first non-reserved inode number, is read from the superblock, but its lower limit is not checked. As a result, if a number that overlaps with the inode number range of reserved inodes such as the root directory or metadata files is set in the super block parameter, the inode number test macros (NILFS_MDT_INODE and NILFS_VALID_INODE) will not function properly. In addition, these test macros use left bit-shift calculations using with the inode number as the shift count via the BIT macro, but the result of a shift calculation that exceeds the bit width of an integer is undefined in the C specification, so if "ns_first_ino" is set to a large value other than the default value NILFS_USER_INO (=11), the macros may potentially malfunction depending on the environment. Fix these issues by checking the lower bound of "nilfs->ns_first_ino" and by preventing bit shifts equal to or greater than the NILFS_USER_INO constant in the inode number test macros. Also, change the type of "ns_first_ino" from signed integer to unsigned integer to avoid the need for type casting in comparisons such as the lower bound check introduced this time.
Distribution advisory
This page covers CVE-2024-42105 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-48.48; 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 high, integrity high, availability high.
Affected software and timeline
Affected software: linux (fixed in 6.8.0-48.48), linux-allwinner-5.19, linux-aws (fixed in 6.8.0-1018.20), linux-aws-5.0, linux-aws-5.11, linux-aws-5.13, linux-aws-5.15 (fixed in 5.15.0-1069.75~20.04.1), linux-aws-5.19, linux-aws-5.3, linux-aws-5.4 (fixed in 5.4.0-1132.142~18.04.1), linux-aws-5.8, linux-aws-6.2, linux-aws-6.5, linux-aws-6.8 (fixed in 6.8.0-1018.19~22.04.1), linux-aws-fips (fixed in 5.15.0-1069.75+fips1), linux-aws-hwe, linux-azure (fixed in 6.8.0-1017.20), linux-azure-4.15, linux-azure-5.11, linux-azure-5.13, linux-azure-5.15 (fixed in 5.15.0-1072.81~20.04.1), linux-azure-5.19, linux-azure-5.3, linux-azure-5.4 (fixed in 5.4.0-1137.144~18.04.1), linux-azure-5.8, linux-azure-6.2, linux-azure-6.5, linux-azure-6.8 (fixed in 6.8.0-1017.20~22.04.1), linux-azure-edge, linux-azure-fde (fixed in 5.15.0-1072.81.1), linux-azure-fde-5.15, linux-azure-fde-5.19, linux-azure-fde-6.2, linux-azure-fips (fixed in 5.15.0-1072.81+fips1), linux-bluefield, linux-fips (fixed in 6.8.0-78.78+fips1), linux-gcp (fixed in 6.8.0-1017.19), linux-gcp-4.15, linux-gcp-5.11, linux-gcp-5.13, linux-gcp-5.15 (fixed in 5.15.0-1068.76~20.04.1), linux-gcp-5.19, linux-gcp-5.3, linux-gcp-5.4 (fixed in 5.4.0-1136.145~18.04.1), linux-gcp-5.8, linux-gcp-6.2, linux-gcp-6.5, linux-gcp-6.8 (fixed in 6.8.0-1017.19~22.04.1), linux-gcp-fips (fixed in 5.15.0-1068.76+fips1), linux-gke (fixed in 6.8.0-1013.17), linux-gke-4.15, linux-gke-5.15, linux-gke-5.4, linux-gkeop (fixed in 6.8.0-1002.4), linux-gkeop-5.15 (fixed in 5.15.0-1052.59~20.04.1), linux-gkeop-5.4, linux-hwe, linux-hwe-5.11, linux-hwe-5.13, linux-hwe-5.15 (fixed in 5.15.0-121.131~20.04.1), linux-hwe-5.19, linux-hwe-5.4 (fixed in 5.4.0-195.215~18.04.1), linux-hwe-5.8, linux-hwe-6.2, linux-hwe-6.5, linux-hwe-6.8 (fixed in 6.8.0-48.48~22.04.1), linux-hwe-edge, linux-ibm (fixed in 6.8.0-1015.15), linux-ibm-5.15 (fixed in 5.15.0-1062.65~20.04.1), linux-ibm-5.4 (fixed in 5.4.0-1079.84~18.04.1), linux-ibm-6.8 (fixed in 6.8.0-1015.15~22.04.1), linux-intel-5.13, linux-intel-iot-realtime (fixed in 5.15.0-1063.65), linux-intel-iotg (fixed in 5.15.0-1064.70), linux-intel-iotg-5.15 (fixed in 5.15.0-1064.70~20.04.1), linux-iot (fixed in 5.4.0-1043.44), linux-kvm (fixed in 5.15.0-1066.71), linux-lowlatency (fixed in 6.8.0-48.48.3), linux-lowlatency-hwe-5.15 (fixed in 5.15.0-121.131~20.04.1), linux-lowlatency-hwe-5.19, linux-lowlatency-hwe-6.2, linux-lowlatency-hwe-6.5, linux-lowlatency-hwe-6.8 (fixed in 6.8.0-48.48.3~22.04.1), linux-lts-xenial, linux-nvidia (fixed in 6.8.0-1017.19), linux-nvidia-6.2, linux-nvidia-6.5, linux-nvidia-6.8 (fixed in 6.8.0-1017.19~22.04.1), linux-nvidia-lowlatency (fixed in 6.8.0-1017.19.1), linux-nvidia-tegra (fixed in 5.15.0-1028.28), linux-nvidia-tegra-5.15 (fixed in 5.15.0-1030.30~20.04.1), linux-nvidia-tegra-igx (fixed in 5.15.0-1016.16), 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-6.5, linux-oem-6.8 (fixed in 6.8.0-1016.16), linux-oracle (fixed in 6.8.0-1015.16), linux-oracle-5.0, linux-oracle-5.11, linux-oracle-5.13, linux-oracle-5.15 (fixed in 5.15.0-1067.73~20.04.1), linux-oracle-5.3, linux-oracle-5.4 (fixed in 5.4.0-1131.140~18.04.1), linux-oracle-5.8, linux-oracle-6.5, linux-oracle-6.8 (fixed in 6.8.0-1015.15~22.04.1), linux-raspi (fixed in 6.8.0-1014.16), linux-raspi-5.4 (fixed in 5.4.0-1116.128~18.04.1), linux-raspi-realtime (fixed in 6.8.0-2013.14), linux-raspi2, linux-realtime (fixed in 6.8.1-1011.11), linux-realtime-6.8 (fixed in 6.8.1-1011.11~22.04.1), linux-riscv (fixed in 6.8.0-48.48.1), linux-riscv-5.11, linux-riscv-5.15 (fixed in 5.15.0-1065.69~20.04.1), linux-riscv-5.19, linux-riscv-5.8, linux-riscv-6.5, linux-riscv-6.8 (fixed in 6.8.0-48.48.1~22.04.2), linux-starfive-5.19, linux-starfive-6.2, linux-starfive-6.5, linux-xilinx (fixed in 6.8.0-1009.10) and linux-xilinx-zynqmp (fixed in 5.15.0-1035.39). Published on 30 July 2024 and last revised on 8 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
CVE-2024-42105 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:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 6.8.0-48.48 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 6.8.0-1018.20 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1069.75~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1132.142~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1018.19~22.04.1 |
| linux-aws-fips | — | 5.15.0-1069.75+fips1 |
| linux-aws-hwe | — | — |
| linux-azure | — | 6.8.0-1017.20 |
| linux-azure-4.15 | — | — |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1072.81~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1137.144~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1017.20~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | 5.15.0-1072.81.1 |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | 5.15.0-1072.81+fips1 |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-78.78+fips1 |
| linux-gcp | — | 6.8.0-1017.19 |
| linux-gcp-4.15 | — | — |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1068.76~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1136.145~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1017.19~22.04.1 |
| linux-gcp-fips | — | 5.15.0-1068.76+fips1 |
| linux-gke | — | 6.8.0-1013.17 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1002.4 |
| linux-gkeop-5.15 | — | 5.15.0-1052.59~20.04.1 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-121.131~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-195.215~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-48.48~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1015.15 |
| linux-ibm-5.15 | — | 5.15.0-1062.65~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1079.84~18.04.1 |
| linux-ibm-6.8 | — | 6.8.0-1015.15~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1063.65 |
| linux-intel-iotg | — | 5.15.0-1064.70 |
| linux-intel-iotg-5.15 | — | 5.15.0-1064.70~20.04.1 |
| linux-iot | — | 5.4.0-1043.44 |
| linux-kvm | — | 5.15.0-1066.71 |
| linux-lowlatency | — | 6.8.0-48.48.3 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-121.131~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-48.48.3~22.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 6.8.0-1017.19 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1017.19~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1017.19.1 |
| linux-nvidia-tegra | — | 5.15.0-1028.28 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1030.30~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1016.16 |
| 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-6.5 | — | — |
| linux-oem-6.8 | — | 6.8.0-1016.16 |
| linux-oracle | — | 6.8.0-1015.16 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1067.73~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1131.140~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1015.15~22.04.1 |
| linux-raspi | — | 6.8.0-1014.16 |
| linux-raspi-5.4 | — | 5.4.0-1116.128~18.04.1 |
| linux-raspi-realtime | — | 6.8.0-2013.14 |
| linux-raspi2 | — | — |
| linux-realtime | — | 6.8.1-1011.11 |
| linux-realtime-6.8 | — | 6.8.1-1011.11~22.04.1 |
| linux-riscv | — | 6.8.0-48.48.1 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1065.69~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-48.48.1~22.04.2 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1009.10 |
| linux-xilinx-zynqmp | — | 5.15.0-1035.39 |
References
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