CVE-2023-52449: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
First published: Thu Feb 22 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier If both ftl.ko and gluebi.ko are loaded, the notifier of ftl triggers NULL pointer dereference when trying to access ‘gluebi->desc’ in gluebi_read(). ubi_gluebi_init ubi_register_volume_notifier ubi_enumerate_volumes ubi_notify_all gluebi_notify nb->notifier_call() gluebi_create mtd_device_register mtd_device_parse_register add_mtd_device blktrans_notify_add not->add() ftl_add_mtd tr->add_mtd() scan_header mtd_read mtd_read_oob mtd_read_oob_std gluebi_read mtd->read() gluebi->desc - NULL Detailed reproduction information available at the Link [1], In the normal case, obtain gluebi->desc in the gluebi_get_device(), and access gluebi->desc in the gluebi_read(). However, gluebi_get_device() is not executed in advance in the ftl_add_mtd() process, which leads to NULL pointer dereference. The solution for the gluebi module is to run jffs2 on the UBI volume without considering working with ftl or mtdblock [2]. Therefore, this problem can be avoided by preventing gluebi from creating the mtdblock device after creating mtd partition of the type MTD_UBIVOLUME.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.31<4.19.306 | |
| Linux Linux kernel | >=4.20<5.4.268 | |
| Linux Linux kernel | >=5.5.0<5.10.209 | |
| Linux Linux kernel | >=5.11.0<5.15.148 | |
| Linux Linux kernel | >=5.16.0<6.1.75 | |
| Linux Linux kernel | >=6.2.0<6.6.14 | |
| Linux Linux kernel | >=6.7.0<6.7.2 | |
| ubuntu/linux | <4.15.0-227.239 | 4.15.0-227.239 |
| ubuntu/linux | <5.4.0-176.196 | 5.4.0-176.196 |
| ubuntu/linux | <5.15.0-102.112 | 5.15.0-102.112 |
| ubuntu/linux | <6.5.0-41.41 | 6.5.0-41.41 |
| ubuntu/linux | <6.8~ | 6.8~ |
| ubuntu/linux | <4.4.0-257.291 | 4.4.0-257.291 |
| ubuntu/linux-aws | <4.15.0-1170.183 | 4.15.0-1170.183 |
| ubuntu/linux-aws | <5.4.0-1122.132 | 5.4.0-1122.132 |
| ubuntu/linux-aws | <5.15.0-1057.63 | 5.15.0-1057.63 |
| ubuntu/linux-aws | <6.5.0-1021.21 | 6.5.0-1021.21 |
| ubuntu/linux-aws | <4.4.0-1134.140 | 4.4.0-1134.140 |
| ubuntu/linux-aws | <6.8~ | 6.8~ |
| ubuntu/linux-aws | <4.4.0-1172.187 | 4.4.0-1172.187 |
| ubuntu/linux-aws-5.15 | <5.15.0-1057.63~20.04.1 | 5.15.0-1057.63~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-aws-5.4 | <5.4.0-1122.132~18.04.1 | 5.4.0-1122.132~18.04.1 |
| 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-aws-hwe | <4.15.0-1170.183~16.04.1 | 4.15.0-1170.183~16.04.1 |
| ubuntu/linux-azure | <5.4.0-1127.134 | 5.4.0-1127.134 |
| ubuntu/linux-azure | <5.15.0-1060.69 | 5.15.0-1060.69 |
| ubuntu/linux-azure | <6.5.0-1022.23 | 6.5.0-1022.23 |
| ubuntu/linux-azure | <4.15.0-1179.194~14.04.1 | 4.15.0-1179.194~14.04.1 |
| ubuntu/linux-azure | <6.8~ | 6.8~ |
| ubuntu/linux-azure | <4.15.0-1179.194~16.04.1 | 4.15.0-1179.194~16.04.1 |
| ubuntu/linux-azure-4.15 | <4.15.0-1179.194 | 4.15.0-1179.194 |
| ubuntu/linux-azure-4.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-5.15 | <5.15.0-1060.69~20.04.1 | 5.15.0-1060.69~20.04.1 |
| ubuntu/linux-azure-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-5.4 | <5.4.0-1127.134~18.04.1 | 5.4.0-1127.134~18.04.1 |
| ubuntu/linux-azure-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-6.5 | <6.5.0-1022.23~22.04.1 | 6.5.0-1022.23~22.04.1 |
| ubuntu/linux-azure-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fde | <5.15.0-1060.69.1 | 5.15.0-1060.69.1 |
| ubuntu/linux-azure-fde | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1060.69~20.04.1.1 | 5.15.0-1060.69~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-azure-fips | <6.8~ | 6.8~ |
| ubuntu/linux-bluefield | <5.4.0-1082.89 | 5.4.0-1082.89 |
| ubuntu/linux-bluefield | <6.8~ | 6.8~ |
| ubuntu/linux-fips | <6.8~ | 6.8~ |
| ubuntu/linux-gcp | <5.4.0-1126.135 | 5.4.0-1126.135 |
| ubuntu/linux-gcp | <5.15.0-1055.63 | 5.15.0-1055.63 |
| ubuntu/linux-gcp | <6.5.0-1022.24 | 6.5.0-1022.24 |
| ubuntu/linux-gcp | <6.8~ | 6.8~ |
| ubuntu/linux-gcp | <4.15.0-1164.181~16.04.1 | 4.15.0-1164.181~16.04.1 |
| ubuntu/linux-gcp-4.15 | <4.15.0-1164.181 | 4.15.0-1164.181 |
| ubuntu/linux-gcp-4.15 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-5.15 | <5.15.0-1055.63~20.04.1 | 5.15.0-1055.63~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-5.4 | <5.4.0-1126.135~18.04.1 | 5.4.0-1126.135~18.04.1 |
| ubuntu/linux-gcp-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-6.5 | <6.5.0-1022.24~22.04.1 | 6.5.0-1022.24~22.04.1 |
| ubuntu/linux-gcp-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-gcp-fips | <6.8~ | 6.8~ |
| ubuntu/linux-gke | <5.15.0-1054.59 | 5.15.0-1054.59 |
| ubuntu/linux-gke | <6.8~ | 6.8~ |
| ubuntu/linux-gkeop | <5.4.0-1089.93 | 5.4.0-1089.93 |
| ubuntu/linux-gkeop | <5.15.0-1040.46 | 5.15.0-1040.46 |
| ubuntu/linux-gkeop | <6.8~ | 6.8~ |
| ubuntu/linux-gkeop-5.15 | <5.15.0-1040.46~20.04.1 | 5.15.0-1040.46~20.04.1 |
| ubuntu/linux-gkeop-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe | <6.8~ | 6.8~ |
| ubuntu/linux-hwe | <4.15.0-227.239~16.04.1 | 4.15.0-227.239~16.04.1 |
| ubuntu/linux-hwe-5.15 | <5.15.0-102.112~20.04.1 | 5.15.0-102.112~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe-5.4 | <5.4.0-175.195~18.04.1 | 5.4.0-175.195~18.04.1 |
| ubuntu/linux-hwe-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-hwe-6.5 | <6.5.0-41.41~22.04.2 | 6.5.0-41.41~22.04.2 |
| ubuntu/linux-hwe-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-ibm | <5.4.0-1069.74 | 5.4.0-1069.74 |
| ubuntu/linux-ibm | <5.15.0-1050.53 | 5.15.0-1050.53 |
| ubuntu/linux-ibm | <6.8~ | 6.8~ |
| ubuntu/linux-ibm-5.15 | <5.15.0-1050.53~20.04.1 | 5.15.0-1050.53~20.04.1 |
| ubuntu/linux-ibm-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-ibm-5.4 | <5.4.0-1069.74~18.04.1 | 5.4.0-1069.74~18.04.1 |
| ubuntu/linux-ibm-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-intel | <6.8~ | 6.8~ |
| ubuntu/linux-intel-iot-realtime | <6.8~ | 6.8~ |
| ubuntu/linux-intel-iotg | <5.15.0-1052.58 | 5.15.0-1052.58 |
| ubuntu/linux-intel-iotg | <6.8~ | 6.8~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1052.58~20.04.1 | 5.15.0-1052.58~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-iot | <5.4.0-1034.35 | 5.4.0-1034.35 |
| ubuntu/linux-iot | <6.8~ | 6.8~ |
| ubuntu/linux-kvm | <4.15.0-1154.159 | 4.15.0-1154.159 |
| ubuntu/linux-kvm | <5.4.0-1110.117 | 5.4.0-1110.117 |
| ubuntu/linux-kvm | <5.15.0-1054.59 | 5.15.0-1054.59 |
| ubuntu/linux-kvm | <6.8~ | 6.8~ |
| ubuntu/linux-kvm | <4.4.0-1135.145 | 4.4.0-1135.145 |
| ubuntu/linux-laptop | <6.5.0-1017.20 | 6.5.0-1017.20 |
| ubuntu/linux-laptop | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency | <5.15.0-102.112 | 5.15.0-102.112 |
| ubuntu/linux-lowlatency | <6.5.0-41.41.1 | 6.5.0-41.41.1 |
| ubuntu/linux-lowlatency | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-102.112~20.04.1 | 5.15.0-102.112~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.5.0-41.41.1~22.04.1 | 6.5.0-41.41.1~22.04.1 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-lowlatency-hwe-6.8 | <6.8~ | 6.8~ |
| ubuntu/linux-lts-xenial | <4.4.0-257.291~14.04.1 | 4.4.0-257.291~14.04.1 |
| ubuntu/linux-lts-xenial | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia | <5.15.0-1048.48 | 5.15.0-1048.48 |
| ubuntu/linux-nvidia | <6.8~ | 6.8~ |
| ubuntu/linux-nvidia-6.5 | <6.5.0-1021.22 | 6.5.0-1021.22 |
| 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-6.1 | <6.1.0-1035.35 | 6.1.0-1035.35 |
| ubuntu/linux-oem-6.5 | <6.5.0-1024.25 | 6.5.0-1024.25 |
| ubuntu/linux-oem-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-oem-6.8 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle | <4.15.0-1133.144 | 4.15.0-1133.144 |
| ubuntu/linux-oracle | <5.4.0-1121.130 | 5.4.0-1121.130 |
| ubuntu/linux-oracle | <5.15.0-1055.61 | 5.15.0-1055.61 |
| ubuntu/linux-oracle | <6.5.0-1024.24 | 6.5.0-1024.24 |
| ubuntu/linux-oracle | <6.8~ | 6.8~ |
| ubuntu/linux-oracle | <4.15.0-1133.144~16.04.1 | 4.15.0-1133.144~16.04.1 |
| ubuntu/linux-oracle-5.15 | <5.15.0-1055.61~20.04.1 | 5.15.0-1055.61~20.04.1 |
| ubuntu/linux-oracle-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle-5.4 | <5.4.0-1121.130~18.04.1 | 5.4.0-1121.130~18.04.1 |
| ubuntu/linux-oracle-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-oracle-6.5 | <6.5.0-1024.24~22.04.1 | 6.5.0-1024.24~22.04.1 |
| ubuntu/linux-oracle-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-raspi | <5.4.0-1106.118 | 5.4.0-1106.118 |
| ubuntu/linux-raspi | <5.15.0-1050.53 | 5.15.0-1050.53 |
| ubuntu/linux-raspi | <6.5.0-1018.21 | 6.5.0-1018.21 |
| ubuntu/linux-raspi | <6.8~ | 6.8~ |
| ubuntu/linux-raspi-5.4 | <5.4.0-1106.118~18.04.1 | 5.4.0-1106.118~18.04.1 |
| ubuntu/linux-raspi-5.4 | <6.8~ | 6.8~ |
| ubuntu/linux-raspi-realtime | <6.8~ | 6.8~ |
| ubuntu/linux-realtime | <6.8~ | 6.8~ |
| ubuntu/linux-riscv | <6.5.0-40.40.1 | 6.5.0-40.40.1 |
| ubuntu/linux-riscv | <6.8~ | 6.8~ |
| ubuntu/linux-riscv-5.15 | <5.15.0-1053.57~20.04.1 | 5.15.0-1053.57~20.04.1 |
| ubuntu/linux-riscv-5.15 | <6.8~ | 6.8~ |
| ubuntu/linux-riscv-6.5 | <6.5.0-40.40.1~22.04.1 | 6.5.0-40.40.1~22.04.1 |
| ubuntu/linux-riscv-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-riscv-6.8 | <6.8~ | 6.8~ |
| ubuntu/linux-starfive | <6.5.0-1015.16 | 6.5.0-1015.16 |
| ubuntu/linux-starfive | <6.8~ | 6.8~ |
| ubuntu/linux-starfive-6.5 | <6.5.0-1015.16~22.04.1 | 6.5.0-1015.16~22.04.1 |
| ubuntu/linux-starfive-6.5 | <6.8~ | 6.8~ |
| ubuntu/linux-xilinx-zynqmp | <5.4.0-1041.45 | 5.4.0-1041.45 |
| ubuntu/linux-xilinx-zynqmp | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-xilinx-zynqmp | <6.8~ | 6.8~ |
| debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.6-1 6.10.7-1 |
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Reference Links
- https://git.kernel.org/stable/c/001a3f59d8c914ef8273461d4bf495df384cc5f8
- https://git.kernel.org/stable/c/1bf4fe14e97cda621522eb2f28b0a4e87c5b0745
- https://git.kernel.org/stable/c/5389407bba1eab1266c6d83e226fb0840cb98dd5
- https://git.kernel.org/stable/c/a43bdc376deab5fff1ceb93dca55bcab8dbdc1d6
- https://git.kernel.org/stable/c/aeba358bcc8ffddf9b4a9bd0e5ec9eb338d46022
- https://git.kernel.org/stable/c/b36aaa64d58aaa2f2cbc8275e89bae76a2b6c3dc
- https://git.kernel.org/stable/c/cfd7c9d260dc0a3baaea05a122a19ab91e193c65
- https://git.kernel.org/stable/c/d8ac2537763b54d278b80b2b080e1652523c7d4c
- https://launchpad.net/bugs/cve/CVE-2023-52449
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/a43bdc376deab5fff1ceb93dca55bcab8dbdc1d6
- https://security-tracker.debian.org/tracker/CVE-2023-52449
- https://ubuntu.com/security/notices/USN-6688-1
- https://ubuntu.com/security/notices/USN-6725-1
- https://ubuntu.com/security/notices/USN-6726-1
- https://www.cve.org/CVERecord?id=CVE-2023-52449
- https://ubuntu.com/security/notices/USN-6725-2
- https://ubuntu.com/security/notices/USN-6726-2
- https://ubuntu.com/security/notices/USN-6726-3
- https://ubuntu.com/security/notices/USN-6818-1
- https://ubuntu.com/security/notices/USN-6819-1
- https://ubuntu.com/security/notices/USN-6818-2
- https://ubuntu.com/security/notices/USN-6819-2
- https://ubuntu.com/security/notices/USN-6819-3
- https://ubuntu.com/security/notices/USN-6818-3
- https://ubuntu.com/security/notices/USN-6818-4
- https://ubuntu.com/security/notices/USN-6819-4
- https://ubuntu.com/security/notices/USN-6926-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-52449
- https://git.kernel.org/linus/2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba
- https://ubuntu.com/security/CVE-2023-52449
Parent vulnerabilities
(Appears in the following advisories)
- agent/weakness
- agent/title
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/first-publish-date
- agent/description
- agent/severity
- agent/remedy
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- collector/nvd-cve
- agent/last-modified-date
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/event
- collector/usn-cve
- source/Ubuntu
- agent/softwarecombine
- agent/tags
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.31
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5.0
- version/linux linux kernel/5.11.0
- version/linux linux kernel/5.16.0
- version/linux linux kernel/6.2.0
- version/linux linux kernel/6.7.0
- package-manager/ubuntu
- package-manager/debian