Vulnerability · Published Apr 3, 2024 · Assigned by Linux
CVE-2024-26773ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()
High 7.8
In plain English
A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 75.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() Determine if the group block bitmap is corrupted before using ac_b_ex in ext4_mb_try_best_found() to avoid allocating blocks from a group with a corrupted block bitmap in the following concurrency and making the situation worse. ext4_mb_regular_allocator ext4_lock_group(sb, group) ext4_mb_good_group // check if the group bbitmap is corrupted ext4_mb_complex_scan_group // Scan group gets ac_b_ex but doesn't use it ext4_unlock_group(sb, group) ext4_mark_group_bitmap_corrupted(group) // The block bitmap was corrupted during // the group unlock gap. ext4_mb_try_best_found ext4_lock_group(ac->ac_sb, group) ext4_mb_use_best_found mb_mark_used // Allocating blocks in block bitmap corrupted group
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | bpftool | 7.3.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-doc | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-headers | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-tools | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | libperf | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | perf | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | python3-perf | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | rtla | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| AlmaLinux:9 | rv | 5.14.0-427.28.1.el9_4 | ALSA-2024:4928 |
| Debian:12 | linux | 6.1.82-1 | DEBIAN-CVE-2024-26773 |
| Debian:13 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26773 |
| Debian:14 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26773 |
| Rocky Linux:9 | kernel | 0:5.14.0-427.28.1.el9_4.cloud.1.0 | RXSA-2024:4928 |
| Rocky Linux:9 | kernel | 0:5.14.0-427.28.1.el9_4 | RLSA-2024:4928 |
| Ubuntu:22.04:LTS | linux | 5.15.0-112.122 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux | 5.15.0-112.122 | USN-6820-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1063.69 | USN-6821-3 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1063.69 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1066.75 | USN-6821-4 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1066.75 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1067.76.1 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1065.74.1 | USN-6821-4 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1062.70 | USN-6820-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1062.70 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1060.66 | USN-6821-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1060.66 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1046.53 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1046.53 | USN-6821-2 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1056.59 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1056.59 | USN-6821-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1058.64 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1058.64 | USN-6821-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1060.65 | USN-6821-2 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1060.65 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-110.120 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-110.120 | USN-6820-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1058.59 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1058.59 | USN-6820-2 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1026.26 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1015.15 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1061.67 | USN-6821-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1061.67 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1058.61 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | UBUNTU-CVE-2024-26773 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | USN-6820-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 21f8cfe79f776287459343e9cfa6055af61328ea163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 260fc96283c0f594de18a1b045faf6d8fb42874d163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 927794a02169778c9c2e7b25c768ab3ea8c1dc03163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 4c21fa60a6f4606f6214a38f50612b17b2f738f5163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before f97e75fa4e12b0aa0224e83fcbda8853ac2adf36163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 0184747b552d6b5a14db3b7fcc3b792ce64dedd1163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before a2576ae9a35c078e488f2c573e9e6821d651fbbe163a203ddb36c36d4a1c942aececda0cc8d06aa7 – before 4530b3660d396a646aad91a787b6ab37cf604b53 |
| Linux | Linux | 3.12 |
References
- https://git.kernel.org/stable/c/21f8cfe79f776287459343e9cfa6055af61328ea
- https://git.kernel.org/stable/c/260fc96283c0f594de18a1b045faf6d8fb42874d
- https://git.kernel.org/stable/c/927794a02169778c9c2e7b25c768ab3ea8c1dc03
- https://git.kernel.org/stable/c/4c21fa60a6f4606f6214a38f50612b17b2f738f5
- https://git.kernel.org/stable/c/f97e75fa4e12b0aa0224e83fcbda8853ac2adf36
- https://git.kernel.org/stable/c/0184747b552d6b5a14db3b7fcc3b792ce64dedd1
- https://git.kernel.org/stable/c/a2576ae9a35c078e488f2c573e9e6821d651fbbe
- https://git.kernel.org/stable/c/4530b3660d396a646aad91a787b6ab37cf604b53
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html