- Vulnerability/
- CVE-2024-26778
3/4/2024
3/4/2024
2/8/2024
CVE-2024-26778: fbdev: savage: Error out if pixclock equals zero
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: fbdev: savage: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. Although pixclock is checked in savagefb_decode_var(), but it is not checked properly in savagefb_probe(). Fix this by checking whether pixclock is zero in the function savagefb_check_var() before info->var.pixclock is used as the divisor. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 | |
| ubuntu/linux | <5.4.0-186.206 | 5.4.0-186.206 |
| ubuntu/linux | <5.15.0-112.122 | 5.15.0-112.122 |
| ubuntu/linux | <6.8~ | 6.8~ |
| ubuntu/linux-aws | <5.4.0-1126.136 | 5.4.0-1126.136 |
| ubuntu/linux-aws | <5.15.0-1063.69 | 5.15.0-1063.69 |
| ubuntu/linux-aws | <6.8~ | 6.8~ |
| ubuntu/linux-aws-5.15 | <5.15.0-1063.69~20.04.1 | 5.15.0-1063.69~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-aws-5.4 | <5.4.0-1126.136~18.04.1 | 5.4.0-1126.136~18.04.1 |
| ubuntu/linux-aws-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-aws-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-aws-fips | <6.8~ | 6.8~ |
| ubuntu/linux-aws-hwe | <6.8~ | 6.8~ |
| ubuntu/linux-azure | <5.4.0-1131.138 | 5.4.0-1131.138 |
| ubuntu/linux-azure | <5.15.0-1066.75 | 5.15.0-1066.75 |
| ubuntu/linux-azure | <6.8~ | 6.8~ |
| ubuntu/linux-azure-4.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-5.4 | <5.4.0-1131.138~18.04.1 | 5.4.0-1131.138~18.04.1 |
| ubuntu/linux-azure-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fde | <5.15.0-1067.76.1 | 5.15.0-1067.76.1 |
| ubuntu/linux-azure-fde | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1065.74~20.04.1.1 | 5.15.0-1065.74~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fips | <6.8~ | 6.8~ |
| ubuntu/linux-bluefield | <5.4.0-1086.93 | 5.4.0-1086.93 |
| ubuntu/linux-bluefield | <6.8~ | 6.8~ |
| ubuntu/linux-fips | <6.8~ | 6.8~ |
| ubuntu/linux-gcp | <5.4.0-1130.139 | 5.4.0-1130.139 |
| ubuntu/linux-gcp | <5.15.0-1062.70 | 5.15.0-1062.70 |
| ubuntu/linux-gcp | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-4.15 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-5.15 | <5.15.0-1062.70~20.04.1 | 5.15.0-1062.70~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-5.4 | <5.4.0-1130.139~18.04.1 | 5.4.0-1130.139~18.04.1 |
| ubuntu/linux-gcp-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-fips | <6.8~ | 6.8~ |
| ubuntu/linux-gke | <5.15.0-1060.66 | 5.15.0-1060.66 |
| ubuntu/linux-gke | <6.8~ | 6.8~ |
| ubuntu/linux-gkeop | <5.4.0-1093.97 | 5.4.0-1093.97 |
| ubuntu/linux-gkeop | <5.15.0-1046.53 | 5.15.0-1046.53 |
| ubuntu/linux-gkeop | <6.8~ | 6.8~ |
| ubuntu/linux-gkeop-5.15 | <5.15.0-1046.53~20.04.1 | 5.15.0-1046.53~20.04.1 |
| ubuntu/linux-gkeop-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe | <6.8~ | 6.8~ |
| ubuntu/linux-hwe-5.15 | <5.15.0-113.123~20.04.1 | 5.15.0-113.123~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe-5.4 | <5.4.0-186.206~18.04.1 | 5.4.0-186.206~18.04.1 |
| ubuntu/linux-hwe-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-ibm | <5.4.0-1073.78 | 5.4.0-1073.78 |
| ubuntu/linux-ibm | <5.15.0-1056.59 | 5.15.0-1056.59 |
| ubuntu/linux-ibm | <6.8~ | 6.8~ |
| ubuntu/linux-ibm-5.15 | <5.15.0-1057.60~20.04.1 | 5.15.0-1057.60~20.04.1 |
| ubuntu/linux-ibm-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-ibm-5.4 | <5.4.0-1073.78~18.04.1 | 5.4.0-1073.78~18.04.1 |
| ubuntu/linux-ibm-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-intel | <6.8~ | 6.8~ |
| ubuntu/linux-intel-iotg | <5.15.0-1058.64 | 5.15.0-1058.64 |
| ubuntu/linux-intel-iotg | <6.8~ | 6.8~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1058.64~20.04.1 | 5.15.0-1058.64~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-iot | <5.4.0-1038.39 | 5.4.0-1038.39 |
| ubuntu/linux-iot | <6.8~ | 6.8~ |
| ubuntu/linux-kvm | <5.4.0-1114.121 | 5.4.0-1114.121 |
| ubuntu/linux-kvm | <5.15.0-1060.65 | 5.15.0-1060.65 |
| ubuntu/linux-kvm | <6.8~ | 6.8~ |
| ubuntu/linux-laptop | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency | <5.15.0-110.120 | 5.15.0-110.120 |
| ubuntu/linux-lowlatency | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-110.120~20.04.1 | 5.15.0-110.120~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-lts-xenial | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia | <5.15.0-1058.59 | 5.15.0-1058.59 |
| ubuntu/linux-nvidia | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia-6.8 | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia-lowlatency | <6.8~ | 6.8~ |
| ubuntu/linux-oem-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-oem-6.8 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle | <5.4.0-1125.134 | 5.4.0-1125.134 |
| ubuntu/linux-oracle | <5.15.0-1061.67 | 5.15.0-1061.67 |
| ubuntu/linux-oracle | <6.8~ | 6.8~ |
| ubuntu/linux-oracle-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle-5.4 | <5.4.0-1125.134~18.04.1 | 5.4.0-1125.134~18.04.1 |
| ubuntu/linux-oracle-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-raspi | <5.4.0-1110.122 | 5.4.0-1110.122 |
| ubuntu/linux-raspi | <5.15.0-1058.61 | 5.15.0-1058.61 |
| ubuntu/linux-raspi | <6.8~ | 6.8~ |
| ubuntu/linux-raspi-5.4 | <5.4.0-1110.122~18.04.1 | 5.4.0-1110.122~18.04.1 |
| ubuntu/linux-raspi-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-riscv | <6.8~ | 6.8~ |
| ubuntu/linux-riscv-5.15 | <5.15.0-1059.63~20.04.1 | 5.15.0-1059.63~20.04.1 |
| ubuntu/linux-riscv-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-riscv-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-starfive | <6.8~ | 6.8~ |
| ubuntu/linux-starfive-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-xilinx-zynqmp | <5.4.0-1045.49 | 5.4.0-1045.49 |
| ubuntu/linux-xilinx-zynqmp | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-xilinx-zynqmp | <6.8~ | 6.8~ |
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Reference Links
- https://git.kernel.org/stable/c/04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288
- https://git.kernel.org/stable/c/070398d32c5f3ab0e890374904ad94551c76aec4
- https://git.kernel.org/stable/c/224453de8505aede1890f007be973925a3edf6a1
- https://git.kernel.org/stable/c/512ee6d6041e007ef5bf200c6e388e172a2c5b24
- https://git.kernel.org/stable/c/84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ff
- https://git.kernel.org/stable/c/8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1
- https://git.kernel.org/stable/c/a9ca4e80d23474f90841251f4ac0d941fa337a01
- https://git.kernel.org/stable/c/bc3c2e58d73b28b9a8789fca84778ee165a72d13
- https://launchpad.net/bugs/cve/CVE-2024-26778
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288
- https://security-tracker.debian.org/tracker/CVE-2024-26778
- https://git.kernel.org/linus/04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288 (6.8-rc2)
- https://www.cve.org/CVERecord?id=CVE-2024-26778
- https://ubuntu.com/security/notices/USN-6820-1
- https://ubuntu.com/security/notices/USN-6821-1
- https://ubuntu.com/security/notices/USN-6821-2
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6820-2
- https://ubuntu.com/security/notices/USN-6821-3
- https://ubuntu.com/security/notices/USN-6831-1
- https://ubuntu.com/security/notices/USN-6821-4
- https://ubuntu.com/security/notices/USN-6867-1
- https://ubuntu.com/security/notices/USN-6871-1
- https://ubuntu.com/security/notices/USN-6892-1
- https://ubuntu.com/security/notices/USN-6919-1
- https://nvd.nist.gov/vuln/detail/CVE-2024-26778
- https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
- https://ubuntu.com/security/CVE-2024-26778
Parent vulnerabilities
(Appears in the following advisories)
- agent/severity
- agent/title
- agent/type
- agent/remedy
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/description
- agent/event
- collector/nvd-api
- source/NVD
- collector/nvd-cve
- agent/references
- agent/tags
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian
- package-manager/ubuntu